important inventions essay

November 1, 2013

What Are the 10 Greatest Inventions of Our Time?

Before you consider, here are a few opinions from Scientific American readers in 1913 on what makes a great invention

By Daniel C. Schlenoff

A competition sponsored in 1913 by Scientific American asked for essays on the 10 greatest inventions. The rules: “our time” meant the previous quarter century, 1888 to 1913; the invention had to be patentable and was considered to date from its “commercial introduction.”

Perception is at the heart of this question. Inventions are most salient when we can see the historical changes they cause. In 2013 we might not appreciate the work of Nikola Tesla or Thomas Edison on a daily basis, as we are accustomed to electricity in all its forms, but we are very impressed by the societal changes caused by the Internet and the World Wide Web (both of which run on alternating-current electricity, by the way). A century from now they might be curious as to what all the fuss was about. The answers from 1913 thus provide a snapshot of the perceptions of the time.

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The airplane: The Wright Flyer for military purposes, being demonstrated at Fort Myer, Va., in 1908. Image: Scientific American - November 1, 1913

Following are excerpts from the first- and second-prize essays, along with a statistical tally of all the entries that were sent in.

The first-prize essay was written by William I. Wyman, who worked in the U.S. Patent Office in Washington, D.C., and was thus well informed on the progress of inventions. His list was:

1. The electric furnace (1889) It was “the only means for commercially producing Carborundum (the hardest of all manufactured substances).” The electric furnace also converted aluminum “from a merely precious to very useful metal” (by reducing it’s price 98 percent), and was “radically transforming the steel industry.”

2. The steam turbine, invented by Charles Parsons in 1884 and commercially introduced over the next 10 years. A huge improvement in powering ships, the more far-reaching use of this invention was to drive generators that produced electricity.

3. The gasoline-powered automobile. Many inventors worked toward the goal of a “self-propelled” vehicle in the 19th century. Wyman gave the honor specifically to Gottleib Daimler for his 1889 engine, arguing: “a century's insistent but unsuccessful endeavor to provide a practical self-propelled car proves that the success of any type that once answered requirements would be immediate. Such success did come with the advent of the Daimler motor, and not before.”

4. The moving picture. Entertainment always will be important to people. “The moving picture has transformed the amusements of the multitude.” The technical pioneer he cited was Thomas Edison.

5. The airplane. For “the Realization of an age-long dream” he gave the laurels of success to the Wright brothers, but apart from its military use reserved judgment on the utility of the invention: “It presents the least commercial utility of all the inventions considered.”

6. Wireless Telegraphy. Systems for transmitting information between people have been around for centuries, perhaps millennia. Telegraph signals got a speed boost in the U.S. from Samuel Morse and Alfred Vail. Wireless telegraphy as invented by Guglielmo Marconi, later evolving into radio, set information free from wires.

7. The cyanide process. Sounds toxic, yes? It appears on this list for only one reason: It is used to extract gold from ore. “Gold is the life blood of trade,” and in 1913 it was considered to be the foundation for international commerce and national currencies.

8. The Nikola Tesla induction motor. “This epoch-making invention is mainly responsible for the present large and increasing use of electricity in the industries.” Before people had electricity in their homes, the alternating current–producing motor constructed by Tesla supplied 90 percent of the electricity used by manufacturing.

9. The Linotype machine. The Linotype machine enabled publishers—largely newspapers—to compose text and print it much faster and cheaper. It was an advance as large as the invention of the printing press itself was over the painstaking handwritten scrolls before it. Pretty soon we won’t be using paper for writing and reading, so the history of printing will be forgotten anyway.

10. The electric welding process of Elihu Thomson. In the era of mass production, the electric welding process enabled faster production and construction of better, more intricate machines for that manufacturing process.

The electric welder invented by Elihu Thomson enabled the cheaper production of intricate welded machinery. Image: Scientific American - November 1, 1913

The turbine invented by Charles Parsons powered ships. Assembled in numbers, they provided an efficient means of driving electrical generators and producing that most useful commodity. Image: Scientific American - November 1, 1913

The second-prize essay, by George M. Dowe, also of Washington, D.C., who may have been a patent attorney, was more philosophical. He divided his inventions into those aiding three broad sectors: production, transportation and communication.

1. Electrical fixation of atmospheric nitrogen. As natural fertilizer sources were depleted during the 19th century, artificial fertilizers enabled the further expansion of agriculture.

2. Preservation of sugar-producing plants. George W. McMullen of Chicago is credited with the discovery of a method for drying sugar cane and sugar beets for transport. Sugar production became more efficient and its supply increased by leaps and bounds, like a kid on a “sugar buzz.” Maybe this is one invention we could have done without. But I digress.

3. High-speed steel alloys. By adding tungsten to steel, “tools so made were able to cut at such a speed that they became almost red hot without losing either their temper or their cutting edge” The increase in the efficiency of cutting machines was “nothing short of revolutionary.”

4. Tungsten-filament lamp. Another success of chemistry. After tungsten replaced carbon in its filament, the lightbulb was considered “perfected.” As of 2013 they are being phased out worldwide in favor of compact fluorescent bulbs, which are four times as efficient.

5. The airplane. Not yet in wide use as transportation in 1913, but “To [Samuel] Langley and to the Wright brothers must be awarded the chief honors in the attainment of mechanical flight.” In 2013 the annoying aspects of commercial airline flying make transportation by horse and buggy seem a viable alternative.

6. The steam turbine. As with Mr. Wyman, the turbine deserved credit not only “in the utilization of steam as a prime mover” but in its use in the “generation of electricity.”

7. Internal combustion engine. As a means of transportation, Dowe gives the greatest credit to “Daimler, Ford and Duryea.” Gottleib Daimler is a well-known pioneer in motor vehicles. Henry Ford began production of the Model T in 1908 and it was quite popular by 1913. Charles Duryea made one of the earliest commercially successful petrol-driven vehicles, starting in 1896.

8. The pneumatic tire. Cars for personal transportation were an improvement on railways. “What the track has done for the locomotive, the pneumatic tire has done for the vehicle not confined to tracks.” Credit is given to John Dunlop and William C. Bartlet, who each had a milestone on the road (pun intended) to successful automobile and bicycle tires.

9. Wireless communication. Marconi was given the credit for making wireless “commercially practical.” Dowe also makes a comment that could apply equally to the rise of the World Wide Web, stating that wireless was “devised to meet the needs of commerce primarily, but incidentally they have contributed to social intercourse.”

10. Composing machines. The giant rotary press was quite capable of churning out masses of printed material. The bottleneck in the chain of production was composing the printing plates. The Linotype and the Monotype dispensed with that bottleneck.

The essays sent in were compiled to come up with a master list of inventions that were considered to be the top 10. Wireless telegraphy was on almost everyone’s list. The “aeroplane” came in second, although it was considered important because of its potential, not because there were so many airplanes in the sky. Here are the rest of the results:

There were also mentions for Luther Burbank's agricultural work (23); Louis Pasteur and vaccination work (20); acetylene gas from carbide (17); mercury-vapor lamp (7); preservation of sugar-producing plants (7); combined motion picture and talking machine (10); Edison's storage battery (6); automatic player piano (4); Pulmotor (a respirator machine) (4); telephone (4).

The motion picture: The hard-working Thomas Edison helped make this entertainment form technically viable. Image: Scientific American - November 1, 1913

The full contents of all the prize-winning essays is available with a subscription to the Scientific American archives .

Electricity Is the Most Important Invention: Essay Example

Electricity is the most important invention: essay introduction.

The contemporary world and its society are known for the highly developed technologies that make people’s lives easier and simpler. The number of useful and sophisticated inventions grows nearly every day. The scientists work on new ways of studying the world we live in, exploring its resources and using them to improve our quality of life.

This process began centuries ago, yet its most active stage was launched in the middle of the nineteenth century, and one of the major moving forces of the rapid technological development was the reception and application of electricity.

Electricity Is the Most Important Invention: Essay Main Body

The period of time when the scientists of Europe first started using electricity to create powerful engines and high functioning mechanisms gave a push to such processes as industrialization, urbanization, and globalization; it made a massive impact on the world’s society, its way of living, and habits, it produced massive cultural, political and economic changes.

There is a common misconception that electricity actually may be an invention, but it is one of the natural forms of energy, it has always existed on our planet so it could not possibly be “invented”. The most influential and powerful invention was the discovery of electricity and of ways of using it for various technologies.

Historically, some of the first encounters humans made with electricity date back to Ancient Greece, when people first discovered the rubbing fur and amber together created the attraction between the two surfaces and also lighter objects, which occurred due to static electricity (Atkinson, 2014). This cannot be called a discovery because the reasons or practical use of this phenomenon were not understood.

The more recent interest towards electricity started to form in the 1600s when William Gilbert, inspired by the writings of ancient Greeks created his own work about magnetism, he also was the one who introduced the term “electrical” (Bellis, 2014). After that, such scientists as Descartes, Fermat, Grimaldi, Hooke, Von Guericke and Gray developed the knowledge about electricity.

In 1747 came Franklin’s theory of positive and negative electric charges (History of Electricity from its Beginning, 2012). This theory was followed by Faraday’s discovery of electric induction and the work of electric currents. Finally, the geniuses of Edison and Tesla brought light to all the average households and made the first hydroelectric engines and plants possible (The History of Electricity, 2014).

Ever since electricity and its qualities and possibilities were discovered the speed of technological progress in our world has been growing. The discovery of electricity became the necessary basis for the occurrence of multiple other sciences and inventions that are constantly used and are of crucial meaning in the contemporary world.

The modern society, its life and well being depends on electricity wholly. We cannot imagine our lives without cell phones, computers, the internet, coffee makers, toasters, washing machines, and microwave ovens, and all of these devices work due to electricity, but we often forget that more crucial needs of ours are fulfilled with the help of this discovery (Electricity, women and the home, n. d.).

For example, light in our cities, streets, and homes is electricity, water in our taps is running because of electrical pumps. The impact of electricity on the society of the world and its lifestyle is hard to overestimate. Today it is responsible for our survival.

At the beginning of the nineteenth century at least eighty percent of the population of our planet lived in rural areas and worked in agriculture, the appearance of electric engines created many workplaces in the cities and enforced the process of urbanization. In the modern world, the majority of people live in or close to urban areas.

This is how electricity changed our social geography. Besides, electricity has made an impact on the taste of our food, our education, our medicine and communication (Valdes, 2012). Electricity in hospitals helps to save millions of lives every day. The internet and cell phones have speeded up the world’s communication massively, changed the way people interact with each other. Electricity gave us new modes of transportation too – trams, trains, and trolleybuses function due to electric power.

Basically, the major electric generators are responsible for human life support. Besides, such huge inventions as nuclear power and space exploration are possible because of the discovery of electric power. Electricity and the knowledge of its current, its qualities and effects, its structure and capacities are the discoveries that influenced our world, changed it, shaped it into what we know today. Every human-made object we can touch or see today was made with the help of electricity one way or another.

Our culture and art also depend on electricity a lot, for example, some of the most ancient paintings and manuscripts are preserved with the help of refrigerators working from electricity. The modern mass media such as radio and television exist because of electricity. The music is written, played and delivered to the audiences today with the help of electricity.

Electricity Is the Most Important Invention: Essay Conclusion

Finally, neurosurgery works through the understanding of electric impulses human brain sends to the body making it function. Electricity constantly penetrates humans, this world, and every aspect of life; this is why its discovery can be considered the most influential and important invention.

Reference List

Atkinson, N. (2014). Who Discovered Electricity? Web.

Bellis, M. (2014). History of Electricity . Web.

Electricity, women and the home. (n. d.). Science Museum . Web.

History of Electricity from its Beginning . (2012). Scholz Electrical. Web.

The History of Electricity , (2014). Code-Electrical . Web.

Valdes, C. (2012). Electricity: How it Changed the World Forever . Web.

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11 Innovations That Changed History

By: Evan Andrews

Updated: May 5, 2023 | Original: December 18, 2012

1. The Printing Press

Prior to the rise of the Internet, no innovation did more for the spread and democratization of knowledge than Johannes Gutenberg’s printing press . Developed around 1440 in Mainz, Germany, Gutenberg’s machine improved on already existing presses through the use of a mold that allowed for the rapid production of lead alloy-type pieces. This assembly line method of copying books enabled a single printing press to create as many as 3,600 pages per day. By 1500 over 1,000 Gutenberg presses were operating in Europe, and by 1600 they had created over 200 million new books. The printing press not only made books affordable for the lower classes, but it helped spark the Age of Enlightenment and facilitated the spread of new and often controversial ideas. In 1518 followers of the German monk Martin Luther used the printing press to copy and disseminate his seminal work “ The Ninety-Five Theses ,” which jumpstarted the Protestant Reformation and spurred conflicts like the Thirty Years’ War (1618-48). The printing press proved so influential in prompting revolutions, religious upheaval and scientific thought that Mark Twain would later write, “What the world is today, good and bad, it owes to Gutenberg.”

2. The Compass

Magnetic compasses may have been made somewhat obsolete by satellites and global positioning systems, but their impact on early navigation and exploration was inestimable. Originally invented in China , by the 14th century compasses had widely replaced astronomical means as the primary navigational instrument for mariners. The compass provided explorers with a reliable method for traversing the world’s oceans, a breakthrough that ignited the Age of Discovery and won Europe the wealth and power that later fueled the Industrial Revolution . Most importantly, the compass allowed for interaction—both peaceful and otherwise—between previously isolated world cultures.

3. Paper Currency

Throughout much of human history, money took the form of precious metals, coins and even raw materials like livestock or vegetables. The inception of paper money ushered in a bold new era—a world in which currency could purchase goods and services despite having no intrinsic value. Paper currency was widely used in China in the ninth century, but did not appear in Europe until the late 1600s. Spurred on by frequent shortages of coins, banks issued paper notes as a promise against future payments of precious metals. By the late 19th century many nations had begun issuing government-backed legal tender that could no longer be converted into gold or silver. The switch to paper money not only bailed out struggling governments during times of crisis—as it did for the United States during the Civil War —but it also ushered in a new era of international monetary regulation that changed the face of global economics. Perhaps even more importantly, paper currency was the vital first step in a new monetary system that led to the birth of credit cards and electronic banking.

While early human societies made extensive use of stone, bronze and iron, it was steel that fueled the Industrial Revolution and built modern cities. Evidence of steel tools dates back 4,000 years, but the alloy was not mass-produced until the invention of the Bessemer Process, a technique for creating steel using molten pig iron, in the 1850s. Steel then exploded into one of the biggest industries on the planet and was used in the creation of everything from bridges and railroads to skyscrapers and engines. It proved particularly influential in North America, where massive iron ore deposits helped the United States become one of the world’s biggest economies.

5. The Electric Light

While they are easy to take for granted, all it takes is a short power outage to remind us of the importance of artificial lights. Pioneered in the early 19th century by Humphry Davy and his carbon arc lamp, electric lights developed throughout the 1800s thanks to the efforts of inventors like Warren de la Rue, Joseph Wilson Swan and Thomas Alva Edison . It was Edison and Swan who patented the first long-lasting light bulbs in 1879 and 1880, liberating society from a near-total reliance on daylight. Electric lights went on to be used in everything from home lighting and street lamps to flashlights and car headlights. The complex networks of wires erected to power early light bulbs also helped lead to the first domestic electrical wiring, paving the way for countless other in-home appliances.

6. Domestication of the Horse

Since their domestication some 5,500 years ago, horses have been inextricably tied to human development. They enabled people to travel great distances and gave different cultures the chance to trade and exchange ideas and technology. Equine strength and agility meant that horses could also carry cargo, plow farmland and even clear forests. Perhaps most influential of all, horses changed the nature of war. Nothing was more feared than a horse-drawn chariot or a mounted warrior, and societies that mastered the use of cavalry typically prevailed in battle.

7. Transistors

A criminally under-appreciated innovation, the transistor is an essential component in nearly every modern electronic gadget. First developed in late 1947 by Bell Laboratories, these tiny semiconductor devices allow for precise control of the amount and flow of current through circuit boards. Originally used in radios, transistors have since become an elemental piece of the circuitry in countless electronic devices including televisions, cell phones and computers. The amount of transistors in integrated circuits doubles nearly every two years—a phenomenon known as Moore’s Law—so their remarkable impact on technology will only continue to grow.

8. Magnifying Lenses

Magnifying lenses might seem like an unremarkable invention, but their use has offered mankind a glimpse of everything from distant stars and galaxies to the minute workings of living cells. Lenses first came into use in the 13th century as an aid for the weak-sighted, and the first microscopes and telescopes followed in the late 16th and early 17th centuries. Figures like Robert Hook and Anton van Leeuwenhoek would go on to use microscopes in the early observance of cells and other particles, while Galileo Galilei and Johannes Kepler employed the telescope to chart Earth’s place in the cosmos. These early uses were the first steps in the development of astonishing devices like the electron microscope and the Hubble Space Telescope . Magnifying lenses have since led to new breakthroughs in an abundance of fields including astronomy, biology, archeology, optometry and surgery.

9. The Telegraph

The telegraph was the first in a long line of communications breakthroughs that later included radio, telephones and email. Pioneered by a variety of inventors in the 18th and 19th centuries, the telegraph used Samuel Morse’s famous Morse code to convey messages by intermittently stopping the flow of electricity along communications wires. Telegraph lines multiplied throughout the 1850s, and by 1902 transoceanic cables encircled the globe. The original telegraph and its wireless successors went on to be the first major advancements in worldwide communication. The ability to send messages rapidly across great distances made an indelible impact on government, trade, banking, industry, warfare and news media, and formed the bedrock of the information age.

10. Antibiotics

A giant step forward in the field of medicine, antibiotics saved millions of lives by killing and preventing the growth of harmful bacteria. Scientists like Louis Pasteur and Joseph Lister were the first to recognize and attempt to combat bacteria, but it was Alexander Fleming who made the first leap in antibiotics when he accidentally discovered the bacteria-inhibiting mold known as penicillin in 1928. Antibiotics proved to be a major improvement on antiseptics—which killed human cells along with bacteria—and their use spread rapidly throughout the 20th century. Nowhere was their effect more apparent than on the battlefield: While nearly 20 percent of soldiers who contracted bacterial pneumonia died in World War I , with antibiotics—namely Penicillin—that number dropped to only 1 percent during World War II . Antibiotics including penicillin, vancomycin, cephalosporin and streptomycin have gone on to fight nearly every known form of infection, including influenza, malaria, meningitis, tuberculosis and most sexually transmitted diseases.

11. The Steam Engine

Cars, airplanes, factories, trains, spacecraft—none of these transportation methods would have been possible if not for the early breakthrough of the steam engine. The first practical use of external combustion dates back to 1698, when Thomas Savery developed a steam-powered water pump. Steam engines were then perfected in the late 1700s by James Watt, and went on to fuel one of the most momentous technological leaps in human history during the Industrial Revolution . Throughout the 1800s external combustion allowed for exponential improvement in transportation, agriculture and manufacturing, and also powered the rise of world superpowers like Great Britain and the United States. Most important of all, the steam engine’s basic principle of energy-into-motion set the stage for later innovations like internal combustion engines and jet turbines, which prompted the rise of cars and aircraft during the 20th century.

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The Stories Behind 20 Inventions That Changed the World

By mentalfloss .com | mar 30, 2023, 6:09 pm edt.

You might find it impossible to imagine a world without your smartphone, or have trouble remembering a time when Wi-Fi wasn’t everywhere, but many of today’s most relied-upon technologies would not have been possible—or even dreamed of—if it weren’t for the game-changing inventions that came before them. And while it’s easy to take many of the marvels of design and engineering we interact with on a daily basis for granted—think toilets, seat belts, and suspension bridges—it’s just as easy to overlook how a handful of more surprising inventions, like the Super Soaker or the pizza saver, have affected the world around us. From blood banks to barcodes and beyond, here are the stories behind 20 inventions that changed the world.

1. Suspension Bridges

Suspension bridges are nothing new; there’s one in China that until recently used bamboo that’s at least 1000 years old , and may be over 2000. But the modern suspension bridges that came along in the 1800s were something else altogether: They were cheaper to build, easier to repair, and provided plenty of leeway in case of flooding. Eventually, the bridges allowed for passage over far larger bodies of water and could withstand violent storms and the ever-increasing weight of foot and vehicle traffic in cities (not to mention drastically cutting down travel times). In the middle of the 19th century, engineer John A. Roebling saw that the Allegheny Portage Railroad was using breakable hemp ropes, leading him to create a way to spin and manufacture wire rope, a technology Roebling would soon put toward suspension bridges. Eventually, the wire could be spun and anchored on site , which helped speed up the construction process.

Roebling’s innovations led to his designs for the Niagara River Gorge Bridge, the Sixth Street Bridge in Pittsburgh, and the famed Brooklyn Bridge in the second half of the 19th century. Though the Brooklyn Bridge was John Roebling’s basic design, his son, Washington, took over the project as chief engineer following his father’s death in 1869. Then, after Washington became mostly confined to his home following a battle with decompression sickness (or “the bends”), his wife, Emily, took on many of his responsibilities. During a time when women were kept far away from STEM fields, Emily learned about cable construction, stress analysis, and other principles of suspension bridge engineering, and was a key figure in the completion of the project.

Today, suspension bridges are located in all corners of the globe, allowing people to safely and easily travel across great chasms and bodies of water. And these bridges are no longer suspended only over simple rivers— Japan’s Akashi Kaikyo Bridge stretches 12,828 feet across the Akashi Strait and features a main span that is 6527 feet long.

Dry and flush toilets have been around for thousands of years, and while many of us take these pieces of porcelain hardware for granted these days, there’s no doubt that life would look much different—and much worse—without them. “Toilets are the key to a thriving, healthy society,” Kimberly Worsham, sanitation expert and founder of FLUSH (Facilitated Learning for Universal Sanitation and Hygiene), tells Mental Floss. Having a designated place to do your business cuts back on outbreaks of infectious diseases like cholera and typhoid—both rampant in urban areas before flush toilets (and indoor plumbing and sewers) were widely used. And in the case of dry toilets, the waste deposited there can be processed for agricultural use.

Typically, people date the modern flush toilet to John Harington, godson to Queen Elizabeth I , but there were flush toilets well before he got involved (one in Knossos, which dates back to the 16th century BCE, was even connected to a sewer). “Flush toilets like his had been available to Western Europe during the Roman Empire, but after Rome fell, Europe essentially resorted to sh***ing outside again,” Worsham says. “All of those systems fell into disrepair.” (Other areas of the world, like East Asia and areas of the Middle East, still used toilets even as Western Europe went backward.)

The options available at the time Harington was innovating were chamber pots, garderobes—which Worsham describes as “dreadful closets with holes in the ground”—or going to the bathroom outside. Harington wanted to bring the toilet back in and make going to the bathroom a more comfortable experience, but his invention left a lot to be desired: Instead of connecting to a sewer, it had a pipe that went straight down into a lower chamber that would eventually need to be emptied by some unlucky person. Even worse, its design meant that the toxic, flammable gases released when urine and poop decompose could come wafting back up, creating potentially deadly situations. It didn’t catch on; Harington built just a handful of models.

Then, in 1775, a Scottish watchmaker named Alexander Cumming developed the S-trap, a piece of plumbing that attaches to the back of the toilet. “This was revolutionary because it used water in the trap to keep the toxic gasses from getting back into the home and the poo and pee from easily sliding back into the toilet,” Worsham says. “Once Cumming patented his design, we had something like a flush toilet renaissance.” Tinkering with toilets commenced in earnest, with people like Thomas Crapper (who, according to Worsham, “created a killer marketing campaign for toilets”) getting involved. Once materials to make toilets became cheaper, they became more common, and the world got much safer. “We saw mortality rates decline,” Worsham says. “It also made our living spaces far less sh***y—literally.” Bodily waste deposited into flush toilets went into sewers or septic tanks, which meant it wasn’t on the street or in drinking water.

That said, there’s still a long way to go to make sure everyone has access to a toilet: According to Worsham, “1 in 4 people in the world lack access to basic toilets, and 1 in 2 lacks access to safely managed toilets—toilets where the waste is never put back into the environment untreated.” Without toilets, people are sicker and miss both work and school more often, which can lead to poverty traps and inequality. Thankfully, toilet tinkering hasn’t stopped: “There have been some really great projects by social enterprises and non-governmental organizations in different parts of the world working to build newer, better, more environmentally-friendly toilets,” Worsham says. “There’s also been some really neat innovation in integrating fecal waste from the toilets with organic waste—a.k.a. food scraps—and treating them to create great agricultural products like fertilizer and animal feed. We’re thinking circular economies here, and it’s exciting.”

3. The Walkman

Though many of today’s kids didn’t know what a Walkman was until they saw Chris Pratt’s Peter Quill flaunt one in 2014’s  Guardians of the Galaxy , they pay unofficial homage to the device every time they play a song on their smartphone. Transistor radios had been around since the 1950s, but it was Sony co-founder Masaru Ibuka who really revolutionized the idea of playing whatever you want wherever you are (provided that you had the cassette tape on hand). For Ibuka, he really wanted something he could use to listen to music on flights. The Sony Walkman debuted in Japan in 1979 (and the U.S. in 1980) and quickly became the It Girl of the ’80s. The Walkman itself was compact, lightweight, and portable, and so were its headphones. As new devices debuted over the years—from Sony’s Discman to Apple’s iPod to smartphones and the Bluetooth headphones of today—the focus on those qualities never wavered.

4. The Pill

By the end of the 19th century, bicycles were offering women a relatively cheap, easy form of independence. Their movements, and the clothing they wore , became less restricted. Decades later, a new item would hit the market and further revolutionize women’s rights: the Pill.

Hormonal birth control pills (often shortened to just the Pill) weren’t the first oral contraceptive ; people had long relied on various concoctions, such as drinking mercury or toxic pennyroyal. By the early 20th century, a push for better contraceptives was rising in the U.S.—Margaret Sanger opened America’s first birth control clinic in 1916, for example, though it was raided and shut down. Work on a contraceptive pill didn’t begin until the 1950s. A biologist named Gregory Goodwin Pincus and a gynecologist named John Rock, with encouragement and funding from Sanger and wealthy philanthropist Katharine McCormick, teamed up to develop a “magic pill” that could prevent pregnancy. “I would argue that effective contraception was probably in the whole of the 20th century the most important change for women,” Linda Gordon, author of Woman's Body, Woman's Right: A Social History of Birth Control in America , told Allure .

When the Pill first hit the market in 1957, it was only approved to help regulate menstruation [ PDF ]; even after the FDA approved the Pill for contraceptive use in 1960, it still wasn’t readily available. In some U.S. states, it remained illegal for unmarried women to purchase the pill until 1972. Oral contraceptives have evolved since their original debut; today, there are many brands on the market, and people can now choose from a variety of monophasic, biphasic, and triphasic options, which provide varying amounts of estrogen and progestin.

The creation of the Pill did more than give women control over their sexual health and fertility—it allowed them to choose to marry later, seek additional education, and advance in their careers. As Vanessa Grigoriadis wrote in New York magazine, “These days, women’s twenties are as free and fabulous as they can be, a time of boundless freedom and experimentation, of easily trying on and discarding identities, careers, partners. The Pill, which is the most popular form of contraception in the U.S., is still the symbol of that freedom.”

5. Super Soaker

For decades, squirt guns were flimsy pieces of plastic that could barely muster enough power to water a houseplant. Then the first Super Soaker—then called the Power Drencher—hit the market in 1990, bringing along with it a Schwarzenegger-esque machismo and a sophisticated air-pressure system that promised to drench unsuspecting targets from far further than previous water guns. The allure of wreaking havoc at family get-togethers and school functions was apparently too much for kids to pass up, and more than 2 million guns flew off the shelves in its debut year. Al Davis, the former executive vice president of Larami, wrote in his book Super Soaker that “The deliveries would come into the stores, and the clerks wouldn’t even have time to put them on the shelves. They’d just take them out of the boxes and sell them to the kids waiting in line for them.”

In its first 25 years on the market, more than 175 different variations of the high-powered water gun were released, racking up over $1 billion in sales in the process. Hasbro bought Larami and the Super Soaker brand in 1995 , and to this day, the company continues to release bigger models that promise to unleash more water-fueled mayhem every summer.

When the Strong National Museum of Play inducted the Super Soaker into its National Toy Hall of Fame in 2015, former Curator Patricia Hogan noted, “[The] Super Soaker had a big impact on neighborhood play. The small squirt guns of the past had required close-in work to engage the opposition. The long, drenching reach of Johnson’s invention requires a quick retreat from a soggy assault or a good chase, meaning that kids with Super Soakers do some serious sprinting. Calculating the distance to target and the physics of velocity and arc requires kids to use their brains. Contemplating strategies and tactics and puzzling out plans forces kids to analyze the best approaches to triumphal ends. And if kids get soaked in the process? It’s all good clean fun.”

None of this would have been possible if not for the outside-the-box thinking of former NASA engineer Lonnie Johnson. He got the idea for the Super Soaker while testing a new type of heat pump he had created that used water as a coolant in the early 1980s. While the heat pump worked fine, he also realized it was pretty fun to shoot concentrated streams of water from the pump across his bathroom.

“I was having trouble getting people to understand the hard science inventions I had like a heat pump or the digital measuring instrument,” Johnson told Forbes . “I thought the toy was something anyone could look at and appreciate.”

Though Johnson holds over 100 patents and worked on NASA’s Galileo mission to Jupiter, his reinvention of the water gun, from 29-cent novelty to summer staple, is something that generations of kids—and some unwitting bystanders—will never forget.

6. The Blood Bank

Less than a century ago, patients requiring a blood transfusion were in a race against time. There was no organized network for people to donate blood, and because blood was difficult to preserve, there was no way to store it for future use. Patients had to find their own blood donors before it was too late.

In 1937, after devising a technique for preserving blood for up to 10 days, physician Bernard Fantus set up the nation’s first “ blood bank ” at Chicago’s Cook County Hospital. People could make “deposits” of their own blood for their own use or to be given to others with matching blood types.

At about the same time, surgeon Charles R. Drew figured out a method for separating plasma from whole blood, and found that if whole blood wasn’t necessary, blood transfusions could be successfully performed with plasma alone . Plasma could be dried for long-term storage in blood banks. As World War II decimated Europe, Drew and the American Red Cross launched a groundbreaking program to collect donated plasma in the U.S. and ship it to Britain, essentially creating a national system for blood donation. During the war, he collaborated with the Red Cross to set up “bloodmobiles”—mobile blood donation centers that made sustaining blood banks more practical. Today, about 13.6 million units of whole blood and red blood cells are collected in the U.S. each year, saving countless lives.

7. Space Telescopes

When Lyman Spitzer proposed the invention of a space telescope in the 1940s, humans could look at our universe only through land-based instruments. Earth’s atmosphere acted like a veil between the land-based telescopes and space, blurring images and hindering detection of far-off celestial phenomena. Spitzer’s research paved the way for the Hubble Space Telescope, the first space-based major optical telescope , launched in 1990 and named for the American astronomer Edwin P. Hubble .

Over its three decades in orbit, Hubble has determined the age of the universe (13.8 billion years), accurately measured the distance to a neighboring galaxy, and spotted numerous moons and exoplanets, in addition to revealing the beauty of the universe through stunning photographs . “The Hubble space telescope has brought about a visual revolution, more significant than any recent work of art in transforming the way we see ourselves and the cosmos,” art critic Jonathan Jones wrote in The Guardian . This year, NASA is scheduled to launch the James Webb Space Telescope, the largest and most technologically advanced space telescope ever built, to unravel more secrets of space.

8. The Pizza Box and Pizza Table

The pizza industry has undergone numerous innovations in recent decades, but one element that has remained largely the same is the box your pie comes in. Domino's Pizza founder Tom Monaghan changed the game in the early 1960s when he worked with Triad Containers in Detroit to develop the modern pizza box. Prior to this, pizzas were delivered in bags or paperboard bakery boxes. These containers were flimsy and often crumpled under the intense heat of the pie before they reached their destinations. Domino’s corrugated cardboard containers were much more durable. They withstood grease and kept pizzas warm while releasing steam through strategically placed openings. Most importantly, the sturdy boxes were stackable , opening the door to mass deliveries.

But there was one area where the simple design fell short: The top of the box sometimes collapsed and stuck to the top of the pizza. The answer to this issue was the pizza saver , which Carmela Vitale patented in 1985. Shaped like a miniature patio table, the plastic device keeps the box lid separate from the pizza, thus keeping the cheese and toppings intact throughout the delivery journey. Vitale was a city council member—not a pizza salesperson—but she had eaten enough delivery pizza to notice a problem and come up with an ingenious solution.

One fall evening in 1895, Wilhelm Röntgen, a German physics professor, was experimenting with the conduction of electricity through low-pressure gases when he accidentally discovered a mysterious ray capable of making a chemical-coated screen fluoresce a few yards away. He went on to put objects between the tube and the screen to see the shadows they produced—and when he tried it with a hunk of lead, he saw shadows of not just the lead but the bones in his hand. Further experimentation showed that the screen could be replaced by a photographic plate—and the X-ray was born.

Röntgen named it X-strahlen — strahlen being German for “beam” or “ray,” and X being used in mathematics to indicate an unknown quantity [ PDF ]. Röntgen's discovery revolutionized the way doctors detect disease and injury, from breast cancer to broken bones. Today, X-rays are also used to find cracks in everything from aircraft wings to nuclear reactors—helping make the modern world quite a bit safer. “Thanks to [Röntgen's] invisible light,” radiologist Richard Gunderman wrote in The Conversation, “we now operate with a much deeper understanding of the universe we inhabit, the molecules and cells of which we are composed[,] and the diseases that threaten our lives.”

10. Wildlife Cams

The first “wildlife cams” were invented by Pennsylvania Congressman and photography enthusiast George Shiras around the end of the 19th century. He got the idea from a hunting technique used by the Ojibwa tribe called jacklighting, in which a fire is built in a pan and placed in the front part of a canoe while the hunter sits in the bow. “The glow makes it possible to distinguish the animal, whose attention is caught by the flames, causing it to stand still with an expectant air,” Sonia Voss, who curated an exhibition of Shiras’s photographs, told National Geographic. “At the rear of the canoe, the hunter, cast into the shadows, only needs to aim between the animal’s eyes, which reflect the flames and stand out like two bright beacons in the night. In the photographic version, the fire is replaced by a kerosene lamp and the trigger of the rifle by the shutter release of the camera.” Later, Shiras graduated to cameras equipped with flash and tripped by a string.

Today, critter cameras have evolved to be so light that they can be strapped to marine life, are battery powered so they can be left in nature for months at a time, and have been attached to robots to get closer to dangerous creatures than ever before, giving us an unprecedented look into the lives of the animals we share the planet with, and the world they inhabit—and helping us make plenty of scientific discoveries along the way. Thanks to wildlife cameras, we know that fishers are breeding in Washington state for the first time in decades; the hairy-nosed otter—the world’s most endangered otter species—is once again lurking within Malaysia; and the rare Siamese crocodile is still slyly slipping around the waters of Thailand. Cameras have also snapped footage of previously unknown species , such as Tanzania’s grey-faced sengi (a species of elephant shrew). In 2020 , trail cameras were essential in allowing scientists to continue their field research and gather data remotely during long stretches of COVID-19 lockdowns and travel restrictions.

11. Duct Tape

Duct tape was the brainchild of Vesta Stoudt, an Illinois mom whose two sons were in the Navy. Stoudt worked at Green River Ordnance Plant packing and inspecting boxes of ammunition. The boxes were sealed with paper tape, dipped in wax, and had a tab to open them. Stoudt noticed that the boxes had a flaw: The tape was flimsy and tabs often tore off, which meant that soldiers couldn’t quickly open the boxes when they were under fire. Why not create a cloth-based waterproof tape to seal the boxes? She asked her supervisors, but they weren’t supportive, so she escalated the matter … straight to President Franklin Delano Roosevelt . “I suggested we use a strong cloth tape to close seams, and make tab of same,” she wrote. “It worked fine, I showed it to different government inspectors they said it was all right, but I could never get them to change tape.”

The president sent her letter to the War Production Board, her idea was approved, and the rest is history. Duct tape has been a quick fix for everyone from your average joe to physicists (who use it on their particle accelerators ) to astronauts (duct tape helped them make repairs on the moon ). When the three crewmembers of Apollo 13 were forced to transfer to the lunar module, duct tape helped them survive— according to Northrop Grumman, the vessel was designed to hold two people for 36 hours, but after the accident, had to hold three for over 86 hours. They used the adhesive (along with cardboard, plastic bags, and space suit components) to adapt their square carbon dioxide filters to the module's round holes. Jerry Woodfill, a NASA engineer who assisted the team from the ground, later told Universe Today , “Of course … the solution to every conceivable knotty problem has got to be duct tape! And so it was.”

12. Barcodes

On June 26, 1974, a grocery store cashier at Marsh Supermarket in Troy, Ohio, passed a pack of Wrigley’s Juicy Fruit chewing gum over a scanner—and the item and price were automatically registered. It was the first time an item with a barcode had ever been purchased.

The inventors behind this marvel of commerce were N. Joseph Woodland and Bernard Silver, who envisioned a system of lines that could identify consumer products by using encoded information read by an optical scanner. It all started when Silver, a grad student at Drexel, overheard the president of a local food chain talking to the dean about the need to automatically obtain product information. The dean wasn't interested in pursuing the idea, but Silver mentioned it to his colleague Woodland, who thought the idea had so much promise that he quit his job and moved to Florida to pursue it. Ultimately, Woodland devised a system inspired by Morse code (which he had used as a Boy Scout) as well as the movie sound systems of the 1920s. It was later refined with help from IBM employee George Laurer, and became the basis for getting through checkout lines faster.

Today’s standard barcodes are known as universal product codes, or UPC-A, and are comprised of 12 digits. The first is a product category—3 denotes a health-related item, for example, while the rest point to the manufacturer and specific product. The more recent QR barcodes commonly recognized by smartphones can deliver information in an instant. Barcodes are used across a variety of industries and can boost productivity eight to 10 times compared to manual data entry. It all makes for a much speedier transaction, but not always: Aldi grocery employees sometimes memorize popular product barcodes so heavy items can remain in the cart.

13. Seat Belts

The idea of a seat belt for transportation safety doesn't begin with Nils Bohlin, the Swedish engineer who conceived of a three-point shoulder and lap belt for automobiles in 1958. Other innovators, like 19th century aviator George Cayley, recognized a need to keep humans from being ejected out of planes and other moving vehicles. But it was Bohlin, a Volvo engineer, who sought to improve upon the two-point lap belts, which could sometimes do more harm than good in the event of an accident. (At high speeds, the belts were capable of causing internal injuries.) By stabilizing the torso with a shoulder strap, drivers and passengers were kept in place without resorting to the more burdensome four-point belts worn by pilots or an earlier Y-shaped belt placed over the stomach. In what could only be described as an act of corporate selflessness, Volvo allowed any car manufacturer to duplicate the belt. At the time of Bohlin’s death in 2002, it was estimated his invention had saved well over a million lives.

14. The Microwave

During World War II, engineer Percy Spencer aided the U.S. war effort through his work on magnetrons—tubes that generate electromagnetic waves for radar—while working for tech company Raytheon. His work didn’t end with the war. In 1945, Spencer was tinkering with magnetrons when he noticed the peanut cluster candy bar in his pocket had suddenly transformed into a “gooey, sticky mess.” It didn’t take long for him to realize the magnetron’s microwaves were responsible, prompting him to develop a microwave oven that people could use to heat food more deliberately. The refrigerator-sized “Radarange” debuted in the mid-1940s and was originally meant for restaurants and airplanes rather than regular homes. (Its $1250 price tag—nearly $17,000 today—would have made widespread success in that realm unlikely anyway.)

Designs improved and costs decreased over time, and the 1967 edition of the Radarange was a hit among homemakers. By the mid-1970s, the microwave oven—eventually just “the microwave”—was becoming a mainstay in U.S. kitchens, and not just for leftovers. Manufacturers marketed the appliance as a faster, easier, (literally) cooler alternative to conventional ovens. “Make the greatest cooking discovery since fire,” actress Barbara Hale said in a 1972 Radarange ad that Mad Men ’s Don Draper surely would have wished he’d come up with himself. A 1971 ad for General Electric’s Just-A-Minute oven emphasized that “with the special timer, control settings, and recipe booklet that come with the oven, practically all the guesswork is taken out of cooking,” a boon to unconfident cooks everywhere. Full-fledged cookbooks cropped up, too— Madame Benoit’s Microwave Cook Book , Barbara Kafka’s The Microwave Gourmet , and so on—featuring everything from duck à l’orange to “ Elegant Beef Dinner .” One 1978 cookbook even recommended making pie in the microwave (to get around the lack of browning, it was advised, just throw some yellow food coloring in there). And when Swanson debuted its plastic, microwave-safe trays in 1986, the microwave and the TV dinner entered into a marriage of convenience that worn-out adults would rely on for decades to come.

15. The Can Opener

Decades after people started storing food in tin cans, someone finally came up with a way to crack them open that didn’t involve a chisel and a hammer (or some other dangerous tool). In the mid-19th century, a series of inventors built what were known as lever knives—not too dissimilar to the can opener on a modern Swiss Army Knife, and by 1870, William Lyman innovated a design that included a rotary cutte. But it wasn’t until the 1920s that Charles Arthur Bunker arrived on the scene with a patent that featured handles you squeeze together to safely puncture the lid and a handle you twist to propel a sharp little wheel along the rim. If that sounds familiar, it’s probably because today’s manual can openers are pretty much the same.

Like the button (which dates back thousands of years, though the buttonhole is a more recent innovation) and the zipper (invented in the 19th century) that came before it, Velcro revolutionized clothing—and we have old-fashioned curiosity to thank for its invention. In the 1940s, George de Mestral and his dog returned from a hunting trip covered in burdock burrs. Intrigued, de Mestral whipped out his microscope to find out what, exactly, made the burrs stick. He discovered that the burrs were covered in little hooks, and that provided de Mestral, a serial inventor, with a burst of inspiration: If he could create a fabric that mimicked the burrs’ hooks, and combine it with fabric loops those hooks could latch into, he’d have a middle ground between fasteners like buttons and zippers.

It took him some time to find a manufacturer to create his fabric; many didn’t think it could be done. But de Mestral persevered and continued to innovate on his idea until he had a product that worked, and Velcro—a trademarked combination of the French words velours and croche , meaning “velvet” and “hook,” respectively—debuted in the early ‘60s. Since then, it has proved as useful as de Mestral thought it would: NASA has used it to anchor equipment in space missions and during walks on the moon ; Mead made use of the material as fasteners on its iconic  Trapper Keepers ; and, of course, it’s used in shoes and clothing , where it’s particularly helpful to people who have difficulty with zippers and buttons (or their caretakers ).

17. Air Conditioning

Since its introduction at the turn of the 20th century, the air conditioner has transformed the quality of life in regions with warm climates—but the first modern air-conditioning unit wasn’t invented for people at all. It was created for a printing press.

In 1902, a 25-year-old engineer named Willis Carrier was asked to come up with a way to control the humidity at the Sackett & Wilhelms printing plant in Brooklyn, where the sweltering summer days frequently messed with the color register. After early tests with rollers, burlap, and calcium chloride brine, Carrier hit on a device that sent chilled water through heating coils. The system was installed later that same summer at the printing plant alongside fans, perforated steam pipes, and other accouterments. It was a huge success, and reportedly had the same cooling effect as 108,000 pounds of ice per day.

Carrier's invention was sold everywhere from flour mills to razor factories, and air-conditioning went on to reshape both architecture (by allowing for skyscrapers where people didn't broil on top floors) and nations, making the development of modern metropolises in sun-scorched places like Singapore, Shanghai, the Sun Belt, and Dubai possible. It also, of course, made everyday life more pleasant (and productive) for millions, if not billions. Ironically, the large amount of energy air conditioners consume has contributed to climate change , making the need for artificial cool air more vital than ever. “It’s not a matter of going back to the past. But before, people knew how to work with the climate,” Malaysian architect Ken Yeang told The Guardian . “Air conditioning became a way to control it, and it was no longer a concern. No one saw the consequences. People see them now.”

The story of the invention of the radio is about a race against time between two scientists—and the power of patents.

Guglielmo Marconi, an Italian inventor, sent and received his first radio signals in 1894, and patented his invention in 1896 in England. Three years later, Marconi sent wireless signals across the English Channel, and two years after that, he claimed that he received a message sent from across the Atlantic (that claim, however, is controversial).

At roughly the same time Marconi was at work in Europe, inventor Nikola Tesla was working on a similar invention in America. Tesla invented the Tesla coil —which sent and received radio waves—in the 1890s. He was all set up for a long-distance experiment in 1895, but a fire broke out in his lab, interrupting the experiment. Two years later, Tesla applied for his patent in the United States.

Marconi and Tesla’s paths converged in 1900, when Marconi applied for a patent in the U.S.—which was denied because Tesla’s had been approved earlier that year.

Undaunted, Marconi continued to apply, and in 1904, the U.S. declared him to be the creator of the radio. This, along with the fact that Marconi had won a Nobel Prize for the technology, enraged Tesla. In 1915, he sued Marconi for patent infringement , but lacked the financial resources to pursue the case.

But beyond the courtroom drama, radio was already at work transforming the world. In 1910, it helped catch Dr. Hawley Harvey Crippen, a man who was accused of killing his wife and escaping to Canada on a ship with his lover; he was caught thanks to Marconi’s wireless telegraph, which sent radio waves, and a very clever ship captain . On August 31, 1920, the first radio news program was broadcast by a station in Detroit, and the first ad played on the radio in 1922 , changing the world of advertising. Radio was also used during both World Wars.

From protests, music, famous speeches, and political unrest, the radio has broadcast many iconic moments and connected the world in a way Marconi and Tesla probably never imagined. Some have gone so far as to say that radio changed everything ; as Jack Lule wrote in his book , Understanding Media and Culture , the radio became “an instrument of social cohesion as it brought together members of different classes and backgrounds to experience the world as a nation.”

As for who came out on top in the radio patent war? Tesla finally got his victory in 1943, when the Supreme Court upheld that his patent had priority. But it was a win the inventor never got to celebrate: He had passed away earlier that year.

19. Aquariums

While keeping fish as pets may have begun with the Romans, the first glass aquarium wasn’t created until 1832, when seamstress-turned-scientist Jeanne Villepreux-Power got tired of studying dead specimens in her lab. Observing marine life wasn’t as easy as observing animals on land, and she wanted to come up with a way to keep cephalopods—especially the paper nautilus—alive outside of the ocean.

To further her research, Villepreux-Power created three different types of aquariums: one for indoor study, one for shallow water, and one to be anchored to the ocean floor. The indoor glass aquarium allowed her to discover that the Argonauta Argo produced its own shell at the larva stage, as well as the fact that the animals can repair their shells within a few hours. She also came up with the idea of repopulating rivers using fish raised in aquariums. (Unfortunately, most of Villepreux-Power’s research was lost in a shipwreck, and she never rewrote her findings.)

Many would improve on her work, from Nathaniel Bagshaw Ward (who turned a terrarium upside down) to Anna Thynne (who created the first marine aquarium filled with coral and seaweed) to Robert Warington [ PDF ] (who published his findings after managing to keep the environment in a 12-gallon tank stable). Two decades after Villepreux-Power’s invention, the first public aquarium opened in London in 1853; a few years after that, P.T. Barnum built an aquarium inside his Barnum’s American Museum in New York, which visitors enjoyed for until the museum burned down in 1865.

Since then, aquariums have become a favorite pastime for people around the world: According to American Humane , 700 million people around the world visit zoos and aquariums annually. Like zoos, aquariums can help with conservation efforts and protect endangered species—and like zoos, they can be controversial, as we debate how humane it is to keep large marine mammals like dolphins, orcas, and beluga whales in tanks much smaller than their natural environments. Still, many aquariums aren’t just for entertainment, but are also focused on exactly what Villepreux-Power was when created an aquarium in the first place: studying and learning.

20. The Lightbulb

Lighting a home used to be a hazardous experience: Open flames on candles and in fireplaces could set things ablaze. The gas lamp , invented near the end of the 18th century, was a definite upgrade, but it had its own set of issues, from fumes to being hard to maintain to the potential for explosions.

Enter: the lightbulb.

While Thomas Edison is often credited with inventing the lightbulb, there were many scientists and researchers who worked on a version of the device before Edison. Inventors like Humphry Davy (creator of the arc lamp) demonstrated how electricity could be used to create light. In the first half of the 19th century , a series of improvements were made—so much so that in the 1840s later-Sir William Grove was able to give a lecture fully illuminated by electric light. But the light was exceedingly expensive, up to 4 shillings an hour (16 pounds or $22 in today’s money) and early lightbulbs themselves were both expensive to make and unreliable.

There wasn’t a breakthrough until 1878, when chemist Joseph Swan replaced the expensive platinum filament with a cheaper carbonized paper one that also had longevity. Edison demonstrated his lightbulb in 1879, one year after Swan. After a long patent infringement lawsuit, the two decided to combine forces and formed the company Edison-Swan United. Later in life, Edison would choose his lighting system as his greatest invention.

Even Edison and Swan’s bulb wasn’t perfect, however, and many scientists continued to improve on its design—including patent expert Lewis Latimer , who streamlined and improved the carbon filament by encasing it in cardboard instead of bamboo, an innovation that allowed for longer-lasting bulbs.

It’s not hyperbole to say that the modern lightbulb changed how society functioned. Beyond making the home safer, it helped cut back on health problems created by things like gas fumes and smoke inhalation, paved the way for longer working hours, impacted building design, and kicked off the creation of massive infrastructure like the electric grid. Lightbulbs went into everything from cars to airplanes to trains, increasing the rate of travel—and making it much safer. And the lightbulb has left its mark symbolically, too. “Even though this invention, Edison’s bulb, is 135 years old at this point,” Ernest Freeberg, author of The Age of Edison: Electric Light and the Invention of Modern America , said in 2015 , “we still use [it] as the universal symbol for a great idea, for a stroke of inventive genius, for this Eureka moment.” Today, scientists work on improving the lightbulb every year, leading to more energy-efficient bulbs—and joining the long line of scientists and engineers whose bright ideas have changed history.

A version of this story ran in 2020; it has been updated for 2023.

20 inventions that changed the world

From the wheel 5,500 years ago to the birth control pill, these 20 inventions had huge ramifications and have helped humans shape the world around us.

2. Printing press

3. penicillin, 5. light bulb, 6. telephone, 7. internal combustion engine, 8. contraceptives, 9. internet, 11. use of fire, 12. concrete, 13. magnifying glass, 14. batteries, 15. marine chronometer, 16. airplane, 17. refrigerator, 18. nuclear energy, 19. vaccines.

Humans are naturally curious and creative, two traits that have led our species to many scientific and technological breakthroughs. Since our earliest ancestors bashed a rock on the ground to make the first sharp-edged tool, humans have continued to innovate. From the debut of the wheel to the launch of Mars rovers, several of these key advancements stand out as especially revolutionary. Some inventions are thanks to one eureka moment, but most of our most pioneering inventions were the work of several innovative thinkers who made incremental improvements over many years. Here, we explore 20 of the most important inventions of all time, along with the science behind the inventions and how they came about.

Before the invention of the wheel in 3500 B.C., humans were severely limited in how much stuff we could transport over land, and how far. The wheel itself wasn't the most difficult part of "inventing the wheel." When it came time to connect a non-moving platform to that rolling cylinder, things got tricky, according to David Anthony, an emeritus professor of anthropology at Hartwick College.

"The stroke of brilliance was the wheel-and-axle concept," Anthony previously told Live Science . "But then making it was also difficult." For instance, the holes at the center of the wheels and the ends of the fixed axles had to be nearly perfectly round and smooth, he said. The size of the axle was also a critical factor, as was its snugness inside the hole (not too tight, but not too loose, either).

The hard work paid off, big time. Wheeled carts facilitated agriculture and commerce by enabling the transportation of goods to and from markets, as well as easing the burdens of people travelling great distances. Now, wheels are vital to our way of life, found in everything from clocks to vehicles to turbines.

David Anthony is professor emeritus and curator emeritus of anthropology at Hartwick College in Oneonta, New York. He has done extensive archaeological fieldwork in Ukraine, Russia and Kazakhstan. Anthony is the author of "The Horse, the Wheel, and Language" (Princeton, 2007) and has co-authored studies including the finding that humans first rode horses 5,000 years ago .

German inventor Johannes Gutenberg invented the printing press sometime between 1440 and 1450. Key to its development was the hand mold, a new molding technique that enabled the rapid creation of large quantities of metal movable type. Though others before him — including inventors in China and Korea — had developed movable type made from metal, Gutenberg was the first to create a mechanized process that transferred the ink (which he made from linseed oil and soot) from the movable type to paper.

With this movable type process, printing presses exponentially increased the speed with which book copies could be made, and thus they led to the rapid and widespread dissemination of knowledge for the first time in history. In her book “ The Printing Revolution in Early Modern Europe ” (Cambridge University Press, 2012), late historian Elizabeth L. Eisenstein wrote, “printers’ workshops would be found in every important municipal center by 1500.”  It has been estimated that up to twenty million volumes had been printed in Western Europe by 1500, although Eisenstein estimates that it was around eight million.

Among other things, the printing press permitted wider access to the Bible, which in turn led to alternative interpretations, including that of Martin Luther, whose "95 Theses" a document printed by the hundred-thousand sparked the Protestant Reformation.

It's one of the most famous discovery stories in history. In 1928, the Scottish scientist Alexander Fleming noticed a bacteria-filled Petri dish in his laboratory with its lid accidentally ajar. The sample had become contaminated with a mold, and everywhere the mold was, the bacteria was dead. That antibiotic mold turned out to be the fungus Penicillium, and over the next two decades, chemists purified it and developed the drug penicillin , which fights a huge number of bacterial infections in humans without harming the humans themselves.

Penicillin was being mass-produced and advertised by 1944. This poster attached to a curbside mailbox advised World War II servicemen to take the drug to rid themselves of venereal disease.

About 1 in 10 people have an allergic reaction to the antibiotic , according to a study published in 2003 in the journal Clinical Reviews in Allergy and Immunology. Even so, most of those people go on to be able to tolerate the drug, researchers said.

Related: What causes allergies?

Ancient mariners used the stars for navigation, but this method didn’t work during the day or on cloudy nights, making it dangerous to travel far from land. 

The first compass was invented in China during the Han dynasty between the 2nd Century B.C. and 1st Century A.D.; it was made of lodestone, a naturally-magnetized iron ore, the attractive properties of which they had been studying for centuries. However, it was used for navigation for the first time during the Song Dynasty, between the 11th and 12th centuries,

Soon after, the technology to the West through nautical contact. The compass enabled mariners to navigate safely far from land, opening up the world for exploration and the subsequent development of global trade. An instrument still widely used today, the compass has transformed our knowledge and understanding of the Earth forever.

The invention of the light bulb transformed our world by removing our dependence on natural light, allowing us to be productive at any time, day or night.  Several inventors were instrumental in developing this revolutionary technology throughout the 1800s; Thomas Edison is credited as the primary inventor because he created a completely functional lighting system, including a generator and wiring as well as a carbon-filament bulb like the one above, in 1879.

As well as initiating the introduction of electricity in homes throughout the Western world, this invention also had a rather unexpected consequence of changing people's sleep patterns . Instead of going to bed at nightfall (having nothing else to do) and sleeping in segments throughout the night separated by periods of wakefulness, we now stay up except for the 7 to 8 hours allotted for sleep, and, ideally, we sleep all in one go.

Several inventors did pioneering work on electronic voice transmission — many of whom later filed intellectual property lawsuits when telephone use exploded — but it was Scottish inventor Alexander Graham Bell who was the first to be awarded a patent for the electric telephone on March 7, 1876 (his patent drawing is pictured above). Three days later, Bell made the first telephone call to his assistant, Thomas Watson, saying "Mr Watson, come here — I want to see you," according to author A. Edward Evenson in his book, “ The Telephone Patent Conspiracy of 1876: The Elisha Gray-Alexander Bell Controversy and Its Many Players ” (McFarland, 2015).

Bell’s inspiration for the telephone was influenced by his family. His father taught speech elocution and specialized in teaching the deaf speak, his mother, an accomplished musician, lost her hearing in later life and his wife Mabel, who he married in 1877, had been deaf since the age of five, according to Evenson. The invention quickly took off and revolutionized global business and communication. When Bell died on Aug. 2, 1922, all telephone service in the United States and Canada was stopped for one minute to honor him.

In these engines, the combustion of fuel releases a high-temperature gas, which, as it expands, applies a force to a piston, moving it. Thus, combustion engines convert chemical energy into mechanical work. Decades of engineering by many scientists went into designing the internal combustion engine, which took its (essentially) modern form in the latter half of the 19th century. The engine ushered in the Industrial Age, as well as enabling the invention of a huge variety of machines, including modern cars and aircraft.

Pictured are the operating steps of a four-stroke internal combustion engine. The strokes are as follows: 1) Intake stroke — air and vaporised fuel are drawn in. 2) Compression stroke - fuel vapor and air are compressed and ignited. 3) Power stroke — fuel combusts and the piston is pushed downwards, powering the machine. 4) Exhaust stroke — exhaust is driven out.

Not only have birth control pills, condoms and other forms of contraception sparked a sexual revolution in the developed world by allowing men and women to have sex for leisure rather than procreation, they have also drastically reduced the average number of offspring per woman in countries where they are used. With fewer mouths to feed, modern families have achieved higher standards of living and can provide better for each child. Meanwhile, on the global scale, contraceptives are helping the human population gradually level off; our number will probably stabilize by the end of the century. Certain contraceptives, such as condoms, also curb the spread of sexually transmitted diseases.

Natural and herbal contraception has been used for millennia. Condoms or ‘sheaths’ have existed in one form or another since ancient times, according to scholar Jessica Borge in her book “ Protective Practices: A History of the London Rubber Company and the Condom Business ” (McGill-Queen’s University Press, 2020), with the rubber condom developed in the 19th century. Meanwhile, the FDA approved the first oral contraceptive pill in the United States in 1960 and by 1965, more than 6.5 million American women were on the pill, according to author Jonathan Eig in his book, “The Birth of the Pill: How Four Pioneers Reinvented Sex and Launched a Revolution” (W. W. Norton & Company, 2015).  

Scientists are continuing to make advancements in birth control, with some labs even pursuing a male form of "the pill." A permanent birth-control implant called Essure was approved by the Food and Drug Administration in 2002, though in 2016, the FDA warned the implant would need stronger warnings to tell users about serious risks of using Essure. 

Related: 7 surprising facts about the pill

The internet is a global system of interconnected computer networks that is used by billions of people worldwide. In the 1960s, a team of computer scientists working for the U.S. Defense Department's ARPA (Advanced Research Projects Agency) built a communications network to connect the computers in the agency, called ARPANET, the predecessor of the internet. It used a method of data transmission called "packet switching", developed by computer scientist and team member Lawrence Roberts, based on prior work of other computer scientists. 

This technology was progressed in the 1970s by scientists Robert Kahn and Vinton Cerf, who developed the crucial communication protocols for the internet, the Transmission Control Protocol (TCP) and the Internet Protocol (IP), according to computer scientist Harry R. Lewis in his book “ Ideas That Created the Future: Classic Papers of Computer Science ” (MIT Press, 2021). For this, Kahn and Cerf are often credited as inventors of the internet”.

In 1989, the internet evolved further thanks to the invention of the World Wide Web by computer scientist Tim Berners-Lee while working at CERN (The European Organization for Nuclear Research). According to CERN , "the basic idea of the WWW was to merge the evolving technologies of computers, data networks and hypertext into a powerful and easy to use global information system." The development of the WWW opened up the world of the internet to everybody and connected the world in a way that it had never been before.  

Related: Inventor of World Wide Web snags computer science's top prize

This key invention dates back more than 2,000 years to the Ancient Roman period and became possible only after humans developed the ability to cast and shape metal. Previously, wood structures had to be built by interlocking adjacent boards geometrically a much more arduous construction process.

Until the 1790s and early 1800s, hand-wrought nails were the norm, with a blacksmith heating a square iron rod and then hammering it on four sides to create a point, according to the University of Vermont . Nail-making machines came online between the 1790s and the early 1800s. Technology for crafting nails continued to advance; After Henry Bessemer developed a process to mass-produce steel from iron, the iron nails of yesteryear slowly waned and by 1886, 10 percent of U.S. nails were created from soft steel wire, according to the University of Vermont. By 1913, 90 percent of nails produced in the U.S. were steel wire.

Meanwhile, the invention of the screw - a stronger but harder-to-insert fastener -  is usually ascribed to the Greek scholar Archimedes in the third century B.C., but was probably invented by the Pythagorean philosopher Archytas of Tarentum, according to David Blockley in his book “ Engineering: A Very Short Introduction ” (Oxford University Press, 2012).

The use of fire is one of humankind's most powerful early inventions and radically changed the way our ancient ancestors lived. Offering warmth and the ability to cook foods such as meat, the campfire was also a social gathering place. Fire also provided some protection against predators. 

The exact date fire was discovered has long remained a mystery, with some studies suggesting it was first used by hominins in Kenya 1 million years ago to cook meat. Other evidence suggests that Neanderthals in Europe and Asia harnessed fire , while Homo sapiens evolving in Africa mastered the skill of creating fire. More recently, archaeologists in Israel found evidence of hominin fire use dating to 1.5 million to 2 million years ago.

Ancient Romans are credited as one of the first societies to use concrete in architecture, with Roman bathhouses and iconic sites such as the Colosseumand Pantheon dome constructed using concrete mixed with volcanic ash, lime, and seawater. Incredibly, many of these ancient buildings are not only standing, but remain in good condition some 2,000 years later — a testament to the longevity of Roman concrete . However, the ancient Egyptians used a crude form of concrete in their buildings much earlier in 3000 B.C., employing forms of concrete mixed with ash and salt water to create mortar. One study concluded that parts of the Great Pyramids of Giza might have been built using concrete . Concrete is strong in compression but breaks easily in tension, so the invention of reinforced steel-concrete toward the end of the 19th century in France, which lends concrete some of steel's tensile strength, enabled concrete to be used more widely in construction.

Franciscan friar and Oxford University scholar Roger Bacon first developed the magnifying glass in 1268. Sometimes dubbed "Britain's first scientist,"' Bacon's magnifying glass built on research by Muslim scholars .

However, the use of optical tools dates back much further. Evidence suggests that as early as 700 B.C., people in ancient Egypt noticed that they could look through crystals to improve vision.

The first battery dates back to 1800, when Italian physicist Alessandro Volta wrapped stacked discs of copper and zinc in a cloth, submerged it in salty water and discovered that it conducted energy. In 1802, Scottish professor William Cruickshank invented a variation of Volta's design known as the trough battery , which consisted of 50 discs of copper and zinc in a wooden box filled with a salt solution to conduct energy. However, it was French physicist Gaston Planté who invented the first practically used battery, in 1859. Modern variations on Planté's rechargeable lead-acid battery are still used in cars today.

The 15th century marked the beginning of the great voyages of discovery by adventurers and sea merchants and the development of a global ocean trade network . Trading vessels carried highly prized silk, spices, salt, wine and tea across often-treacherous seas for months on end. After the loss of four ships at sea in the Scilly naval disaster of 1707 , seafarers realized they needed an accurate way to determine longitude when out of sight of land.

In 1714, the British parliament offered a prize of 20,000 pounds to anyone who could solve the problem. Carpenter John Harrison won the bounty in 1735 with his marine chronometer. What is perhaps even more remarkable is that Harrison was a self-taught clockmaker. His ingenious timekeeping device was powered by the rocking motion of the ship rather than by gravity and could be used by sailors to accurately calculate longitude at sea.

The ability for humans to fly has captured the imagination of inventors for centuries, with the first human-operated flight taking place in 1783 when Joseph-Michael and Jacques-Ètienne Montgolfier took to the skies in a hot air balloon. In 1853 British engineer George Cayley designed the first glider to successfully take flight, but it wasn’t until 1903 that Orville and Wilbur Wright's plane became the first airplane to have a successful voyage. It not only took off from Kitty Hawk, North Carolina using its own power; it flew and landed without destruction, unlike many earlier aircraft inventions. The Wright brothers were inspired by watching' birds in flight. The glider took a page from birds' wings but had a 32-foot (10 meters) wingspan.

Refrigeration in some form has been around for thousands of years. Depending on the climate, ice or cold water was used to keep food cold in ancient times. But artificial refrigeration didn't come until 1748, when the physician William Cullen  first demonstrated evaporative cooling. Further breakthroughs came in 1834, when a vapor-compression system was developed by American engineer Jacob Perkins . In 1876, German engineer Carl von Linde came up with a process of liquifying the gas, ushering in the era of commercial refrigeration. In 1913, American engineer Fred Wolf invented the first domestic refrigerator , and as demand for fresh produce grew, so did the number of households with refrigerators.

Nuclear energy was first discovered in the 1930s by Italian physicist Enrico Fermi , who found that bombarding atoms with neutrons could split them, generating huge amounts of energy. He went on to develop the first nuclear chain reaction at the University of Chicago. This successful experiment led to the development of several nuclear plants in the 1950s, with Idaho launching the first nuclear plant in 1951 with electricity produced from atomic energy at its Experimental Breeder Reactor I site. Obninsk in the former Soviet Union became the first grid-connected nuclear power plant in the world in 1954, while Shippingport nuclear plant, Pennsylvania became the first commercial nuclear plant in 1957.

Nuclear power remains widely used around the world today, generating approximately 10% of global energy .

One problem is that existing nuclear power plants use fission to split atoms, and this produces radioactive substances that take ages to decay. And the risks of nuclear disasters, such as those at Chernobyl and the Fukushima-Daiichi nuclear power plant, highlight the challenges of fission-based nuclear power.

So scientists are working to create usable nuclear fusion reactors, which could theoretically generate clean, limitless energy. In 2022, scientists reported a minor breakthrough: a fusion reactor that generated more energy than was put into it. However, we're still a long way from a usable fusion reactor , experts say.

The World Health Organization (WHO) estimates that approximately 2 million to 3 million lives are saved annually thanks to vaccinations against contagious diseases such as diphtheria, tetanus and measles.

The earliest rudimentary vaccination is thought to date back to the 10th century in China, when people inoculated small scratches in the skin with small doses of smallpox to provide protection against the disease. But in 1796, English physician Edward Jenner discovered that milkmaids rarely caught or died of smallpox because they were previously infected by the cowpox virus , also called Vaccinia. So he used cowpox to develop a smallpox vaccine. He inoculated an 8-year-old boy with cowpox and then with smallpox, and the boy never caught the deadly scourge. Jenner's experiment led to the creation of a smallpox vaccine and his work is regarded as the start of immunology. In 1980, smallpox was declared officially eradicated by WHO. But scientists continue to develop new life-saving vaccines — most notably, the coronavirus vaccines that played a large role in combatting the pandemic .

Like many famous inventions, the X-ray was discovered by accident. In 1895, German engineer and physicist Wilhelm Conrad Röntgen was undertaking a two-month study into the potential of radiation. In an experiment testing whether cathode rays could pass through glass, he noticed that the radiation was able to pass through screens of considerable thickness, leaving a shadow of solid objects. He soon discovered that X-rays could pass through human tissues to show a clear picture of the skeleton and organs. A year later, a group of physicians took the earliest X-rays on patients . These observations led to the development of radiology as we know it today and has since helped medical professionals diagnose broken bones, tumors, organ failures and more.

Editor's Note: This story was updated to correct the location of Edison's lab. It was Menlo Park, New Jersey, not Menlo Park, California.

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Jessica is a former staff writer for History of Royals and All About History magazines. She has both a Bachelor and Master's degree in History from the University of Winchester , with dissertations on 'The Power of Dress' in the French court between the mid-sixteenth to eighteenth centuries, and 'Abdicating Queens': an analysis of the contemporary and modern images of Juana la Loca, Mary, Queen of Scots and Christina, Queen of Sweden.'

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The 10 Inventions that Changed the World

The U.S. librarian of Congress ranks history's most important innovations.

Thomas Edison liked to say that he never failed. He succeeded every now and again with an invention that would change the world. The rest of the time, he tried thousands of other things with only one fault—that they would never work.

That’s the sort of spirit and tenacity that leads to progress, says Carla Hayden , the U.S. librarian of Congress. The library keeps archives of many of America’s copyrights and blueprints, so National Geographic asked Hayden to list what she considers 10 of the most meaningful advances in history—the inventions and innovations responsible for the trappings of modern life.

Ranking innovations is more art than science. Can you really compare a camera to an airplane? But while progress is incremental, it’s also exponential; it builds on itself. The printing press allowed literacy to spread and thinkers to share ideas and, thus, invent more things.

Modern inventions tend more toward improving than transforming: an app that connects the world in a better way, planes that fly farther, faster. But there’s still room, every so often, for dramatic advances like, say, 3-D printing or the Internet. “There will be more great leaps,” says Hayden. “We have a momentum and acceleration I think we can all feel.”

Top 10 innovations

• Printing press
• Personal computer
• Refrigeration

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6 Inventions That Changed the World

Illustrations by Zohar Lazar

Most everything around you, from the smartest phone to the simplest sheet of paper, began life as an idea in someone’s mind. Throughout the ages, people around the world have dreamed up new ways to solve problems and satisfy needs, but some inventions do more than that—they alter the course of history. Here are the backstories of six of the most important innovations of all time.

Wheel & axle, invented in mesopotamia around 3500 b.c..

Jim McMahon

The wheel is often said to be humanity’s greatest invention, but the wheel alone isn’t what transformed the world. For a wheel to help people move objects using less force, it needs an axle, or a stationary pole, to turn on.

It was likely the people of ancient Mesopotamia—a historical region that includes present-day Iraq and parts of Iran, Kuwait, Syria, and Turkey—who thought of putting the two together. A more than 5,500-year-old potter’s wheel found there suggests that Sumerians, who occupied the region from 4100 to 1750 B.C., had a handle on wheel and axle mechanics. Other modes of wheeled transport in the form of carts and wagons eventually followed.

“Most assume that the earliest wagons were invented in Mesopotamia, which was urban and therefore more sophisticated than the tribal societies of Europe [at the time],” writes anthropologist David Anthony in his book The Horse, the Wheel, and Language . Still, he notes, there’s evidence that multiple cultures had similar ideas around the same period.

The ability to move heavy stuff on wheels was a game-changer for civilization. Previously, it might have taken a whole village to lug stones, lumber, or crops across land. But wheeled transport reduced people’s dependence on group labor to get things built, allowing societies to spread out. Single-family farms sprouted up, and trade expanded as people were able to carry large quantities of goods long distances on carts and wagons.

The wheel is often said to be humanity’s greatest invention. But the wheel alone isn’t what transformed the world. For a wheel to help people move objects using less force, it needs an axle, or a stationary pole, to turn on.

It was likely the people of ancient Mesopotamia who thought of putting the two together. The historical region includes present-day Iraq and parts of Iran, Kuwait, Syria, and Turkey. Sumerians occupied the region from 4100 to 1750 b.c. A more than 5,500-year-old potter’s wheel found there suggests that they had a handle on wheel and axle mechanics. Other modes of wheeled transport in the form of carts and wagons eventually followed.

“Most assume that the earliest wagons were invented in Mesopotamia, which was urban and therefore more sophisticated than the tribal societies of Europe [at the time],” writes anthropologist David Anthony in his book The Horse, the Wheel, and Language . But, he notes, there’s proof that several cultures had similar ideas around the same period.

The ability to move heavy stuff on wheels was a game-changer for civilization. Before then, it might have taken a whole village to lug stones, lumber, or crops across land. But wheeled transport meant people depended less on group labor to get things built. That allowed societies to spread out. Single-family farms popped up. And trade stretched further as people were able to carry large amounts of goods long distances on carts and wagons.

Zohar Lazar

Papyrus Paper

Invented in egypt around 3000 b.c..

The ancient Egyptians discovered something life-altering right in their backyards when they found a tall green reed called papyrus growing on the muddy banks of the Nile River delta. It was sturdy, plentiful, and free—and Egyptians used it to construct huts, temples, and boats. Eventually, when the Egyptians began turning papyrus plants into paper around 3000 B.C., that humble swamp plant would change civilization.

“It was like a revolution in book production because suddenly you went from a solid medium like clay, stone, or wooden tablets to something that is soft and you can fold,” says Sofía Torallas Tovar, professor of classics and Near Eastern languages and civilizations at the University of Chicago. “Imagine the revolution of using something that was easier to store and to archive,” she adds. “It allowed many aspects of literacy, including the circulation of literature and the extension of bureaucracy.”

Making the paper required soaking the papyrus stems, then peeling away the outer layers to reveal the inner white part, known as pith. The pith was thinly sliced and laid in strips parallel to each other, overlapping slightly to form a sheet. More strips were then placed on top, at right angles to the first layer, and then the two layers were pressed together until they dried to form a single page.

The ancient Egyptians discovered something life-altering right in their backyards. They found a tall green reed called papyrus growing on the muddy banks of the Nile River delta. It was sturdy, plentiful, and free. Egyptians used it to build huts, temples, and boats. Eventually, the Egyptians began turning papyrus plants into paper around 3000 b.c. It was then that the humble swamp plant changed civilization.

Making the paper required soaking the papyrus stems, then peeling away the outer layers to reveal the inner white part, known as pith. The pith was thinly sliced and laid in strips parallel to each other. The overlapping strips formed a sheet. More strips were then placed on top, at right angles to the first layer. Then the two layers were pressed together until they dried to form a single page.

‘It was like a revolution in book production.’

The Egyptians wisely kept their paper-making method a secret and made big bucks exporting their papyrus paper to other parts of the world for the next 4,000 years. That paper gave people near and far a standard, durable medium on which to record their ideas. The scrolls and sheets produced in Egypt preserved great works that might otherwise be lost, such as Aesop’s fables and Homer’s Odyssey . Scribes recorded news-making events on the paper—accounts that we now study as ancient history. Countless words written on papyrus continue to inform and inspire the world today. “The birth of this writing medium,” says Torallas Tovar, “is the seed of our current literate world.”

The Egyptians wisely kept their paper-making method a secret. They made big bucks exporting their papyrus paper to other parts of the world for the next 4,000 years. That paper gave people near and far a standard, durable medium on which to record their ideas. The scrolls and sheets produced in Egypt held great works that might otherwise be lost, such as Aesop’s fables and Homer’s Odyssey . Scribes recorded news-making events on the paper. We now study these accounts as ancient history. Countless words written on papyrus continue to inform and inspire the world today. “The birth of this writing medium,” says Torallas Tovar, “is the seed of our current literate world.”

Invented in China during the 11th century

As early as the Han Dynasty   (206 B.C.-220 A.D.), Chinese scholars began experimenting with what they thought was a magical type of rock. They discovered that a thin piece of the rock aligned itself north and south when suspended at its center by a thread. As it turned out, the rocks were lodestones, or naturally magnetized pieces of the mineral magnetite.

The stones also temporarily magnetized metal objects, such as needles, if rubbed against them. That discovery put China on a path to developing the first magnetic compasses centuries later.

Historians believe Chinese thinkers began rubbing lodestones against needles to magnetize them for navigation around the 11th century. By the Middle Ages, the magnetic compass had spread throughout the Middle East and Europe.

Before the compass, people used the sun, the stars, and familiar landmarks to find their way—or on dark, cloudy nights, they just hoped for the best.

The invention of the compass enabled sailors to confidently steer ships on a set course and goods to be transported long distances without being lost. These advancements stimulated foreign trade.

As compasses improved over time, they became essential. Even today, in a world of GPS and map apps, high-tech compasses are still built into airplanes and ships to help guide people and goods to their destinations all over the world.

As early as the Han Dynasty (206 b.c.-220 a.d.), Chinese scholars began experimenting with what they thought was a magical type of rock. They discovered that a thin piece of the rock lined up north and south when hung at its center by a thread. As it turned out, the rocks were lodestones, or naturally magnetized pieces of the mineral magnetite.

Before the compass, people used the sun, the stars, and familiar landmarks to find their way. On dark, cloudy nights, they just hoped for the best.

The invention of the compass helped sailors confidently steer ships on a set course. It also made it possible for goods to be transported long distances without being lost. These advancements gave way to foreign trade.

As compasses improved over time, they became essential. They’re even important today. In a world of GPS and map apps, high-tech compasses are still built into airplanes and ships to help guide people and goods to places all over the world.

Printing Press With Movable Type

Invented in germany around 1439.

In the early 1400s, many books were still made by copying text entirely by hand. But German inventor Johannes Gutenberg had a better idea: He developed a printing press with individual metal letters that could be rearranged and reused countless times. The letters were set in place to spell the words on a page, coated with ink, then hand-cranked down onto paper, making a copy. The press could print about 250 copies an hour, an advance that made it possible to mass produce printed materials for the first time.

In 1455, Gutenberg had a hit with his first major effort: a book now known as the Gutenberg Bible, which is widely considered the first modern book. He printed about 180 copies, and they sold out quickly. (An original copy is worth more than $35 million today.)

Gutenberg’s invention not only made books cheaper and more accessible for everyday people, but it also allowed scholars to more easily share their knowledge. That helped spread the wealth of innovations in art, culture, and science that sprung up in Europe between the 14th and 17th centuries (a period known as the Renaissance), which ushered in the modern age.

In the early 1400s, many books were still made by copying text entirely by hand. But German inventor Johannes Gutenberg had a better idea. He built a printing press with individual metal letters that could be rearranged and reused countless times. The letters were set in place to spell the words on a page. Then they were coated with ink and hand-cranked down onto paper to make a copy. The press could print about 250 copies an hour. This advance made it possible to mass produce printed materials for the first time.

In 1455, Gutenberg had a hit with his first major effort: a book now known as the Gutenberg Bible. It is widely considered the first modern book. He printed about 180 copies, and they sold out quickly. (An original copy is worth more than $35 million today.)

Gutenberg’s invention made books cheaper and more accessible for everyday people. It also allowed scholars to more easily share their knowledge. That helped spread the wealth of innovations in art, culture, and science that sprung up in Europe between the 14th and 17th centuries. This period, known as the Renaissance, led to the modern age.

Electric Light Bulb

Invented in the united states in 1879.

In the mid-1800s, when Thomas Edison was a young man, people depended on fire-prone candles, oil lamps, or gas lamps for indoor light. But Edison—an inventor who would come to hold a whopping 1,093 U.S. patents in his lifetime—knew electricity was the answer, and other inventors at the time knew this too. The basic idea: Wires would carry electric currents to a filament inside a glass bulb, and as the filament grew hotter, it would glow, producing light.

The ideal filament material had to burn brightly, last for hours at a time, and be affordable. Many people around the world were hard at work on a practical electrical light bulb. Edison was determined to be the first to succeed.

“We tend to think that these transformative inventions come from the mind of single geniuses,” says University of Tennessee history professor Ernest Freeberg. “It takes an entire culture to create these inventions, and Edison was building on a process that many people created.”

Edison and his team spent more than a year testing out some 3,000 filament materials—from spiderweb to human hair—before discovering that cotton thread covered in carbon and baked to the right temperature did the trick. On October 22, 1879, Edison’s electric light bulb lit up—and shone brightly for more than 13 hours.

Edison and other inventors continued to improve on the bulb, and as they did, it allowed people to light entire homes, buildings, and even cities—no matter the time of day. For the first time, people could work—and play—around the clock.

“Like every other invention that comes along, it was both incredibly exciting and disruptive,” Freeberg says. “Every aspect of life was changed by access to light.”

Thomas Edison was an inventor who held a whopping 1,093 U.S. patents in his lifetime. In the mid-1800s, when he was a young man, people depended on fire-prone candles, oil lamps, or gas lamps for indoor light. But Edison knew electricity was the answer, and other inventors at the time knew this too. The basic idea: Wires would carry electric currents to a filament inside a glass bulb. As the filament grew hotter, it would glow, producing light.

The ideal filament material had to burn brightly, last for hours at a time, and be affordable. Many people around the world were hard at work on a practical electrical light bulb. Edison wanted to be the first to succeed.

Edison and his team spent more than a year testing out some 3,000 filament materials. They tried everything from spiderweb to human hair. They then discovered that cotton thread covered in carbon and baked to the right temperature did the trick. On October 22, 1879, Edison’s electric light bulb lit up. It shined brightly for more than 13 hours.

Edison and other inventors continued to improve on the bulb. As they did, it allowed people to light entire homes, buildings, and even cities anytime of the day. For the first time, people could work and play around the clock.

The Internet: A Modern Invention Takes Shape

It’s hard to picture life before certain inventions, even relatively new ones such as the internet. the internet has transformed society, and it continues to shape our world as it evolves. here, a few key dates in its creation..

An experimental computer network called ARPANET, which becomes the foundation for the internet, goes online with funding from the Pentagon. Its initial purpose is to link computers over telephone lines, allowing them to share information.

An experimental computer network called  ARPANET,  which becomes the foundation for the internet, goes online with funding from the Pentagon. Its initial purpose is to link computers over telephone lines, allowing them to share information.

The first email is sent and received. Working with Arpanet engineers, computer programmer Ray Tomlinson sends a test message from one computer to another using the @ symbol in an email address. The message says something like “QWERTYUIOP.”

The  first email  is sent and received. Working with Arpanet engineers, computer programmer Ray Tomlinson sends a test message from one computer to another using the @ symbol in an email address. The message says something like “QWERTYUIOP.”

The World Wide Web begins as a project at the European Organization for Nuclear Research (CERN). The world’s first web browser and website go live at CERN in 1990, and the World Wide Web opens to the public in 1991.

The World Wide Web  begins as a project at the European Organization for Nuclear Research (CERN). The world’s first web browser and website go live at CERN in 1990, and the World Wide Web opens to the public in 1991.

Carl Court/AFP via Getty Images

What is thought to be the first smartphone, created by IBM, goes on sale. The bulky phone—named Simon—contains a touch screen, email capability, and some built-in applications, such as a calculator.

What is thought to be the  first smartphone,  created by IBM, goes on sale. The bulky phone—named Simon—contains a touch screen, email capability, and some built-in applications, such as a calculator.

Wi-Fi, which allows devices to communicate over a wireless signal, is invented and first released to customers. It transforms the way people connect and communicate, allowing easy access to the internet from home and on the go.

Wi-Fi,  which allows devices to communicate over a wireless signal, is invented and first released to customers. It transforms the way people connect and communicate, allowing easy access to the internet from home and on the go.

Rick Friedman/Corbis via Getty Images

Mark Zuckerberg (left) and other students at Harvard University launch Facebook, which goes on to become the world’s largest social networking site, ushering in the age of social media.

Mark Zuckerberg  (left)  and other students at Harvard University launch  Facebook,  which goes on to become the world’s largest social networking site, ushering in the age of social media.

Continue the Learning Journey

• Pick one of the inventions in the article, and imagine what the world would be like without it. Write a first-person narrative describing what an average day might look like for you without that invention. 
• Papyrus paper, the printing press with movable type, and the internet are three inventions that have altered the ways we communicate. But there have been many more advancements in writing and communication over time. Do some research on how communication has evolved throughout history, and create a timeline of your findings. 

Essay on Invention

Students are often asked to write an essay on Invention in their schools and colleges. And if you’re also looking for the same, we have created 100-word, 250-word, and 500-word essays on the topic.

Let’s take a look…

100 Words Essay on Invention

The magic of inventions.

Inventions are the creations of brilliant minds. They are new devices, methods, or processes made from innovative ideas. Inventions have shaped our world, making life easier and more interesting.

Types of Inventions

Inventions can be physical, like the telephone, or conceptual, like mathematical formulas. They can also be improvements of existing things, like the smartphone.

Impact of Inventions

Inventions have a great impact. They can change how we live, work, and play. For instance, the internet has transformed communication and information access.

Inventing the Future

Inventing is about solving problems and imagining new ways to do things. It’s a key part of progress and the future of our world.

250 Words Essay on Invention

The genesis of invention.

Invention is the cradle of progress, the heart of human advancement. It is the product of creative minds that strive to improve our lives and the world around us. Inventions, whether they are technological, scientific, or artistic, have shaped the course of history and continue to define our future.

The Role of Necessity

The axiom “necessity is the mother of invention” holds true. The need to solve problems or improve existing conditions often sparks the flame of invention. For instance, the invention of the wheel was driven by the need for easier transportation, while the development of the internet was a response to the need for global connectivity.

The Power of Curiosity

However, necessity alone can’t fuel invention. It’s the marriage of necessity and curiosity that truly births invention. Curiosity pushes us to question the status quo, to seek answers, and to venture into the unknown. It’s this curiosity that led to inventions like the telescope, which expanded our understanding of the cosmos.

The Impact of Invention

Inventions have a profound impact on society. They revolutionize industries, transform lifestyles, and redefine societal norms. The printing press democratized knowledge, the steam engine propelled the Industrial Revolution, and digital technology is reshaping our world today.

Conclusion: The Continuum of Invention

Invention is a continuum, a never-ending journey of discovery and improvement. Every invention is a stepping stone to the next, creating a chain reaction of progress. As we stand on the brink of a new era of innovation, the power of invention promises to continue shaping our collective destiny.

500 Words Essay on Invention

Introduction to invention.

Invention is a creative process that has been the cornerstone of human progress. It is the act of bringing ideas or objects together in a novel way to create something that did not exist before. Inventions have shaped and reshaped our world, influencing every aspect of our lives, from communication and transportation to healthcare and entertainment.

The Essence of Invention

The essence of invention lies in the recognition of a problem or a need, followed by the imaginative thinking to conceive a solution. It requires a blend of creativity, critical thinking, and often, a deep understanding of scientific principles. The invention process is iterative, involving trial and error, experimentation, and refinement until a workable solution is achieved.

Invention and Society

Inventions have profound impacts on society. They can stimulate economic growth, improve living standards, and even redefine societal norms. The invention of the printing press, for instance, revolutionized information dissemination, fostering literacy and the spread of new ideas. Similarly, the invention of the internet transformed the way we communicate, access information, and conduct business.

Invention and Technological Advancement

Technological advancements are often the result of inventions. For instance, the invention of the transistor led to the development of the digital computer, which has since revolutionized many fields, from data processing to artificial intelligence. Technological inventions, in turn, often spur further inventions, creating a cycle of innovation.

The Role of Invention in Scientific Discovery

Invention also plays a critical role in scientific discovery. Many scientific breakthroughs have been made possible by inventions. For instance, the invention of the microscope opened up a whole new world of microorganisms, leading to significant advances in biology and medicine. Similarly, the invention of the telescope has led to numerous astronomical discoveries, expanding our understanding of the universe.

Challenges and Ethical Considerations in Invention

However, invention is not without its challenges and ethical considerations. The process of invention often requires significant resources, and there is always the risk of failure. Moreover, some inventions can be used for harmful purposes or have unintended negative consequences. For example, the invention of nuclear technology has brought both the potential for clean energy and the threat of nuclear weapons. Therefore, it is crucial to consider the ethical implications of inventions and to strive for responsible innovation.

In conclusion, invention is a powerful force that drives human progress. It is a process of creative problem-solving that leads to new products, technologies, and scientific discoveries, with far-reaching impacts on society. However, it also brings challenges and ethical considerations that need to be carefully managed. As we continue to invent and innovate, we must strive to do so in a way that benefits society and minimizes potential harm.

That’s it! I hope the essay helped you.

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• Science & Math
• Sociology & Philosophy
• Law & Politics

Essay: Innovations that Changed the World

• Essay: Innovations that Changed the…

Over the years that the humans have walk upon the earth there have been countless technological innovations, some dating back to the Stone Age.  Although the ancient world didn’t have all the resources that we have today, the people of those times did magnificent things that paved the road for us today; from the stone tools made in Paleolithic and Mesolithic times to the wheel in 3000 BC, all the way to the pyramids in 2560 BC.  These inventions helped make it possible for us to build smartphones, remote controls, and skyscrapers.

Throughout the Paleolithic and Mesolithic periods, humans used stone tools.  These stone tools are the oldest technology that has evidence of surviving.  The humans would use flakes of rock, usually flint, to make different tools.  For example, the oldwan choppers, seen to the right, were designed to help break things down.  These stone tools can be compared to smartphones, the most useful tool of today. 

While the humans of the past had a different shape designed for different tasks, today we have “an app for that.”  Smartphones have different apps designed for each task; likewise, there are different designs of stone for each objective.  A smartphone is a tool that most people today could not live without.  Like stone tools, a smartphone is designed to make the lives of people easier. 

Lastly, stone tools were refined by Neolithic farmers.  These farmers sharpened the stone tools, making them better suited for hunting spears and knives.  The same goes for the smartphone.  It seems like every other month there is a new update to make the device better suited for the task at hand.

With the invention of the wheel, transportation was put on another level.  Although it is believed that the first wheels were meant for pottery in Mesopotamia, they ended up being an invention that changed the way humans traveled.  The remote is a great innovation to society. 

The remote, like the wheel, changed the lives of humans.  Before the wheel, people would have to walk everywhere.  In the same way, the remote made it so we did not have to get up to change a channel on the television.  The remote made life easier for people, as did the wheel.  These two inventions were made to help people in their everyday lives but actually helped to make people lazier. 

The wheel made it so people didn’t have to walk and the remote made it so people didn’t have to get up, leaving people able to sit most of the time.  Obviously, these technological breakthroughs had both positive and negative effects.

Around 2560 BC, the Egyptians created one of the 7 wonders of the ancient world, the pyramids.  The Great Pyramid of Giza was the tallest man-made structure for almost 4,000 years. Today, if we go to a city we can see buildings that are a quarter of a mile tall.  These buildings help to make more space for business by taking up unused air space, which is why they are an important invention. 

Skyscrapers have multiple purposes, one of these purposes is to be a living environment like hotels and apartments.  The pyramids were used as a final resting place for Egyptian kings.  Like the rich kings of Egypt who had the best, rich people today usually have the best living environment in hotel skyscrapers. These huge structures are all being outdone, like the pyramids were, losing the title of the tallest building. 

The Great Pyramid of Giza may have lasted 4,000 years without being outdone, now, however, it is hard for one to last 10 years.  The Burj Khalifa is currently the tallest building in the world, reigning 2,717 feet, but there is another skyscraper said to be built in 2017 which would be 3,280 feet tall, that is nearly one kilometer.  Clearly, the ancient world built up the way for us to soar to new heights.

To conclude, the inventions from the past can be seen in the innovations of today; from the stone tools and the wheel help making it possible to make the pyramids, all the way to discoveries today, like the smartphone, remote, and skyscrapers.  Nolan Bushnell once said, “The best ideas lose their owners and take on lives of their own.” 

This quote is seen in all of these technological discoveries that changed the world.  Ultimately, without these inventions we would be just cavemen without tools, never advancing in evolution.

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Tutor and Freelance Writer. Science Teacher and Lover of Essays. Article last reviewed: 2022 | St. Rosemary Institution © 2010-2024 | Creative Commons 4.0

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3D printing, E-cigarettes among the most important inventions of the 21st century

The human race has always innovated, and in a relatively short time went from building fires and making stone-tipped arrows to creating smartphone apps and autonomous robots. Today, technological progress will undoubtedly continue to change the way we work, live, and survive in the coming decades.

Since the beginning of the new millennium, the world has witnessed the emergence of social media, smartphones, self-driving cars, and autonomous flying vehicles. There have also been huge leaps in energy storage, artificial intelligence, and medical science. Men and women have mapped the human genome and are grappling with the ramifications of biotechnology and gene editing. 

We are facing immense challenges in global warming and food security, among many other issues. While human innovation has contributed to many of the problems we are facing, it is also human innovation and ingenuity that can help humanity deal with these issues. These are 21 strategies that could avert climate disaster . 

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24/7 Wall St. examined media reports and other sources on the latest far-reaching innovations to find some of the most important 21st-century inventions. In some cases, though there were some precursor research and ancillary technologies before 2001, the innovation did not become available to the public until this century. This list focuses on innovations (such as touch screen glass) that support products rather than the specific products themselves (like the iPhone). 

It remains to be seen if all the technology on this list will continue to have an impact throughout the century. Legislation in the United States may limit the longevity of e-cigarettes, for example. But some of the inventions of the last 20 years will likely have staying power for the foreseeable future. Here are some inventions that are hundreds of years old but are still widely used today .

1. 3D printing

Most inventions come as a result of previous ideas and concepts, and 3D printing is no different. The earliest application of the layering method used by today's 3D printers took place in the manufacture of topographical maps in the late 19th century, and 3D printing as we know it began in 1980.

The convergence of cheaper manufacturing methods and open-source software, however, has led to a revolution of 3D printing in recent years. Today, the technology is being used in the production of everything from lower-cost car parts to bridges to less painful ballet slippers and it is even considered for artificial organs.

2. E-cigarettes

While components of the technology have existed for decades, the first modern e-cigarette was introduced in 2006. Since then, the devices have become wildly popular as an alternative to traditional cigarettes, and new trends, such as the use of flavored juice, have contributed to the success of companies like Juul.

Recent studies have shown that there remains a great deal of uncertainty and risk surrounding the devices, with an increasing number of deaths and injuries linked to vaping. In early 2020, the FDA issued a widespread ban on many flavors of cartridge-based e-cigarettes, in part because those flavors are especially popular with children and younger adults.

3. Augmented reality

Augmented reality, in which digital graphics are overlaid onto live footage to convey information in real time, has been around for a while. Only recently, however, following the arrival of more powerful computing hardware and the creation of an open source video tracking software library known as ARToolKit that the technology has really taken off.

Smartphone apps like the Pokémon Go game and Snapchat filters are just two small popular examples of modern augmented reality applications. The technology is being adopted as a tool in manufacturing, health care, travel, fashion, and education.

4. Birth control patch

The early years of the millennia have brought about an innovation in family planning, albeit one that is still focused only on women and does nothing to protect against sexually transmitted infections. Still, the birth control patch was first released in the United States in 2002 and has made it much easier for women to prevent unintended pregnancies. The plastic patch contains the same estrogen and progesterone hormones found in birth control pills and delivers them in the same manner as nicotine patches do to help people quit tobacco products.

5. Blockchain

You've likely heard about it even if you don't fully understand it. The simplest explanation of blockchain is that it is an incorruptible way to record transactions between parties – a shared digital ledger that parties can only add to and that is transparent to all members of a peer-to-peer network where the blockchain is logged and stored.

The technology was first deployed in 2008 to create Bitcoin, the first decentralized cryptocurrency, but it has since been adopted by the financial sector and other industries for myriad uses, including money transfers, supply chain monitoring, and food safety.

6. Capsule endoscopy

Advancements in light emitting electrodes, image sensors, and optical design in the '90s led to the emergence of capsule endoscopy, first used in patients in 2001. The technology uses a tiny wireless camera the size of a vitamin pill that the patient swallows.

As the capsule traverses the digestive system, doctors can examine the gastrointestinal system in a far less intrusive manner. Capsule endoscopy can be used to identify the source of internal bleeding, inflammations of the bowel ulcers, and cancerous tumors.

7. Modern artificial pancreas

More formally known as closed-loop insulin delivery system, the artificial pancreas has been around since the late '70s, but the first versions were the size of a filing cabinet. In recent years, the artificial pancreas, used primarily to treat type 1 diabetes, became portable. The first artificial pancreas (the modern, portable kind) was approved for use in the United States in 2016.

The system continuously monitors blood glucose levels, calculates the amount of insulin required, and automatically delivers it through a small pump. British studies have shown that patients using these devices spent more time in their ideal glucose-level range. In December 2019, the FDA approved an even more advanced version of the artificial pancreas, called Control-IQ, developed by UVA.

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8. E-readers

Sony was the first company to release an e-reader using a so-called microencapsulated electrophoretic display, commonly referred to as e-ink. E-ink technology, which mimics ink on paper that is easy on the eyes and consumes less power, had been around since the '70s (and improved in the '90s), but the innovation of e-readers had to wait until after the broader demand for e-books emerged. Sony was quickly overtaken by Amazon's Kindle after its 2007 debut. The popularity of e-readers has declined with the emergence of tablets and smartphones, but they still command loyalty from bookworms worldwide.

9. Gene editing

Researchers from the University of California, Berkeley and a separate team from Harvard and the Broad Institute independently discovered in 2012 that a bacterial immune system known as CRISPR (an acronym for clustered regularly interspaced short palindromic repeats) could be used as a powerful gene-editing tool to make detailed changes to any organism's DNA. This discovery heralded a new era in biotechnology.

The discovery has the potential to eradicate diseases by altering the genes in mice and mosquitoes to combat the spread of Lyme disease and malaria but is also raising ethical questions, especially with regards to human gene editing such as for reproductive purposes.

10. High-density battery packs

Tesla electric cars have received so much attention largely because of their batteries. The batteries, located underneath the passenger cabin, consist of thousands of high-density lithium ion cells, each barely larger than a standard AA battery, nestled into a large, heavy battery pack that also offers Tesla electric cars a road-gripping low center of gravity and structural support.

The brainchild of Tesla co-founder J.B. Straubel, these battery modules pack more of a punch than standard (and cheaper) electric car batteries. These packs are also being used in residential, commercial, and grid-scale energy storage devices.

11. Digital assistants

One of the biggest technology trends in recent years has been smart home technology, which can now be found in everyday consumer devices like door locks, light bulbs, and kitchen appliances. The key piece of technology that has helped make all this possible is the digital assistant. Apple was the first major tech company to introduce a virtual assistant called Siri, in 2011, for iOS.

Other digital assistants, such as Microsoft's Cortana and Amazon's Alexa, have since entered the market. The assistants gained another level of popularity when tech companies introduced smart speakers. Notably, Google Home and Amazon's Echo can now be found in millions of homes, with an ever-growing range of applications.

12. Robot heart

Artificial hearts have been around for some time. They are mechanical devices connected to the actual heart or implanted in the chest to assist or substitute a heart that is failing. Abiomed, a Danvers, Massachusetts-based company, developed a robot heart called AbioCor, a self-contained apparatus made of plastic and titanium.

AbioCor is a self-contained unit with the exception of a wireless battery pack that is attached to the wrist. Robert Tools, a technical librarian with congestive heart failure, received the first one on July 2, 2001.

13. Retinal implant

When he was a medical student, Dr. Mark Humayun watched his grandmother gradually lose her vision. The ophthalmologist and bioengineer focused on finding a solution to what causes blindness. He collaborated with Dr. James Weiland, a colleague at the USC Gayle and Edward Roski Eye Institute, and other experts to create the Argus II.

The Argus II is a retinal prosthesis device that is considered to be a breakthrough for those suffering from retinitis pigmentosa, an inherited retinal degenerative condition that can lead to blindness. The condition afflicts 1.5 million people worldwide. The device was approved by the U.S. Food and Drug Administration in 2013.

14. Mobile operating systems

Mobile operating systems for smartphones and other portable gadgets have enabled the proliferation of smartphones and other mobile gadgets thanks to their intuitive user interfaces and seemingly endless app options. Mobile operating systems have become the most consumer-facing of computer operating systems. When Google first purchased Android Inc. in 2005, the operating system was just two years old, and the first iPhone (with its iOS) was still two years from its commercial debut.

15. Multi-use rockets

Billionaire entrepreneur Elon Musk may not necessarily be remembered for his contributions to electric cars innovations, but rather for his contributions to space exploration. Musk's private space exploration company, SpaceX, has developed rockets that can be recovered and reused in other launches – a more efficient and cheaper alternative to the method of using the rockets only once and letting them fall into the ocean.

On March 30, 2017, SpaceX became the first to deploy one of these used rockets, the Falcon 9. Blue Origin, a space-transport company founded by Amazon.com's Jeff Bezos, has launched its own reusable rocket.

16. Online streaming

Online streaming would not be possible without the convergence of widespread broadband internet access and cloud computing data centers used to store content and direct web traffic. While internet-based live streaming has been around almost since the internet was broadly adopted in the '90s, it was not until the mid-2000s that the internet could handle the delivery of streaming media to large audiences. Online streaming is posing an existential threat to existing models of delivering media entertainment, such as cable television and movie theaters.

17. Robotic exoskeletons

Ever since researchers at the University of California, Berkeley, created in 2003 a robotic device that attaches to the lower back to augment strength in humans, the demand for robotic exoskeletons for physical rehabilitation has increased, and manufacturing has taken off.

Wearable exoskeletons are increasingly helping people with mobility issues (particularly lower body paralysis), and are being used in factories. Ford Motor Company, for example, has used an exoskeleton vest that helps auto assemblers with repetitive tasks in order to lessen the wear and tear on shoulders and arms.

18. Small satellites

As modern electronics devices have gotten smaller, so, too, have orbital satellites, which companies, governments, and organizations use to gather scientific data, collect images of Earth, and for telecommunications and intelligence purposes. These tiny, low-cost orbital devices fall into different categories by weight, but one of the most common is the shoebox-sized CubeSat. As of October 2019, over 2,400 satellites weighing between 1 kg (2.2 lbs) and 40 kgs (88 lbs) have been launched, according to Nanosats Database.

19. Solid-state lidar

Lidar is an acronym that stands for light detection and ranging, and is also a portmanteau of the words "light" and "radar." The technology today is most often used in self-driving cars. Like radars, which use radio waves to bounce off objects and determine their distance, lidar uses a laser pulse to do the same.

By sending enough lasers in rotation, it can create a constantly updated high-resolution image map of the surrounding environment. The next steps in the technology would include smaller and cheaper lidar sensors, and especially solid state ones – no spinning tops on the cars.

20. Tokenization

If you have ever used the chip embedded in a credit or debit card to make a payment by tapping rather than swiping, then you have benefited from the heightened security of tokenization. This data security technology replaces sensitive data with an equivalent randomized number †known as a token †that is used only once per transaction and has no value to would-be hackers and identity thieves attempting to intercept transaction data as it travels from sender to recipient. Social media site classmates.com was reportedly the first to use tokenization in 2001 to protect its subscribers' sensitive data. Tokenization is also being touted as a way to prevent hackers from interfering with driverless cars.

21. Touchscreen glass

Super-thin, chemically strengthened glass is a key component of the touchscreen world. This sturdy, transparent material is what helps keep your iPad or Samsung smartphone from shattering into pieces at the slightest drop. Even if these screens crack, in most cases the damage is cosmetic and the gadget still works.

Corning Inc., already a leader in the production of treated glass used in automobiles, was asked by Apple to develop 1.3-mm treated glass for its iPhone, which debuted in 2007. Corning's Gorilla Glass is still the most well known, though other brands exist in the marketplace.

24/7 Wall Street is a USA TODAY content partner offering financial news and commentary. Its content is produced independently of USA TODAY.

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Essay on Scientific Discoveries

• Updated on  
• Feb 7, 2024

Writing and speaking skills are the most important skills in the world. It shows how well a student will convey his or her ideas, experiences and thoughts. Essays are one of the most popular forms of writing to ascertain an applicant’s general knowledge, experiences, writing style and language skills. It is used in many entrance exams like SAT, IELTS, TOEFL and in college applications as well. From a very early age, school curriculums have been encouraging students to write essays and give speeches. Sometimes the topics provided to students can be complicated. So, today we have come up to help the students with an essay on Scientific Discoveries.

Check out our 200+ Essay Topics for School Students in English

Five Qualities of A Good Essay

Before we provide you with an essay on scientific discoveries. Let’s learn about essay writing. Writing an essay is a difficult thing. The writing should be rich in content plus should not bore its readers. Here are the five qualities a perfect essay should have:-

• Focus: All of your writing should come under one single topic. No matter how vast your essay is, it should always revolve around the topic of the essay. Avoid unnecessary details.
• Development: Every paragraph of your essay should centre the topic of your essay. Try to use examples, details and descriptions.
• Free composition: Always follow a basic structure. Before finalising your essay, jot down the points you would like to mention and then make a series. Do not surprise the reader with complicated words, try to keep it as simple as possible. 
• Correctness: Make sure your essay is free from any grammatical errors, spelling mistakes, mismatched sentences, etc. Always use standard English and complete sentences.
• Introduction and Conclusion: The introduction and the conclusion of the writing are the most important parts of the essay. The first impression is always the last, and so is the introduction of your writing. After reading the first two or three lines, if the reader gets bored, he may not read your whole essay. So make sure your essay contains a crispy beginning. Alternatively, make the conclusion so strong and effective that the reader never forgets your essay. Don’t feel afraid to use quotes, catchy lines, slogans and all. They are the cherry on the cake for your essay.

Also Read: Importance of Technology in Education

Also Read: Essay on Athletics in 100, 200 and 300 Words

Sample Essay on Scientific Discoveries

Here is an example of an essay on scientific discoveries to help them out in their school assignments.

Everything around us is a great discovery. Be it a necessity, comfort, or luxury, they all came from different scientific discoveries that took place over some time. Starting from a small pin to a big ship, everything is just a mere invention to make the lives of humans easier. Scientistic discoveries take place in every arena of thought so before we talk about these inventions. Let’s examine what is science. What is science? Science is a system for acquiring knowledge. We use observations, and experimentation to come to a conclusion and explain any natural phenomenon. In simple language, science is the systematic field of study or knowledge gained from experimentations, observations and some accepted facts. And so scientific discoveries have done miracles in human lives.  Scientific discoveries and inventions have made our lives easier and more comfortable than we could have ever imagined. Scientific equipment accomplishes lengthy tasks in just minutes. Be it in the health sector, education, transportation, and more. All the inventions are just the gifts of science. Nowadays we are in a situation where without science, we cannot imagine our survival. In the absence of Science, no country, and no single person would have made progress. Scientific discoveries and inventions are machines that accomplish any task of humans either fully or partially. According to the business dictionary, the word ‘invention’ is “a new scientific or technical idea and the means of its embodiment or accomplishment. To be patentable, an invention must be novel, have utility, and be non-obvious. To be called an invention, an idea only needs to be proven as workable. But to be called an innovation, it must also be replicable at an economical cost and must satisfy a specific need. That’s why only a few inventions lead to innovations because not all of them are economically feasible.” Wikipedia further says, “An invention is a unique or novel device, method, composition or process. It may be an improvement upon a machine or product or a new process for creating an object or a result. An invention that achieves a unique function or result may be a radical breakthrough. Such works are novel and not obvious to others skilled in the same field.” These definitions made us clear about how important scientific discovery is for us. Due to science, we can get all kinds of things we desire for. Electricity is a miracle that gives us light even in the dark. It further helps us to run industries conserve the environment and control pollution .  A cricket match is going on in America and we can watch it. Why? Inventions! Nowadays medical science is doing its best all over the world. Let us not forget computers, which is the greatest invention of mankind.  However, it is rightly said that every coin has two sides. Scientific discoveries and inventions have given us a lot and at the same time created a lot of disadvantages too. Nowadays people have become so dependent on technology that even walking has become difficult. Inventions made people so lazy, especially the young generation. All they could think about now is sitting at their home, with their computers and tablets on.

Gone are the days when people used to go out, play and have actual fun in life. Also, scientific inventions have made people jobless. Employers are substituting their employees with heavy machines. And this is the sad reality everywhere. Along with a luxurious life, technology has made our lives more complicated. People nowadays catch the disease early due to no exercise and sitting in front of their computer the whole day.  The biggest and most disastrous inventions are weapons, guns and bombs. What’s worse than taking the life of people? It has ruined unity, peace and harmony all over the world.  Scientific discoveries and inventions have contributed so much that my essay would never be enough to explain it. Ultimately, I would like to say that do not take up the monstrous side. Try the blessing of discoveries and make your life better in every aspect.

Also Read: Essay on Information Technology in 400 Words

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• Macroeconomics

8 Inventions That Made Our Lives Easier

Skylar Clarine is a fact-checker and expert in personal finance with a range of experience including veterinary technology and film studies.

Over the past two centuries, many people have used their knowledge, skills, and experience in order to create a host of inventions that have made the world a much better place for us to live.

Here are eight paramount discoveries and innovations that have improved our standard of living and have given us the opportunity to pursue our personal and business endeavors in a more comfortable and prosperous fashion.

Key Takeaways

• Paper money, invented by China, kickstarted economies by removing the need to barter with goods.
• Vaccinations helped reduce illness and deaths, and local anesthesia made surgeries easier for patients.
• The first automobile is believed to have been invented by Karl and Bertha Benz.
• The first digital computer was created in 1937.

Banknote (Paper Currency): Tang Dynasty of China—7th Century

China is not only credited with having invented paper, but it is also generally recognized as the first country in the world to use paper money. The paper money system helped improve economies worldwide by moving them away from bartering .

Vaccinations: Edward Jenner—1796

Edward Jenner's work is widely regarded as the foundation of immunology. Jenner is well renowned worldwide for his innovative contribution to immunization and the ultimate eradication of smallpox.

Local Anesthesia: William Morton—1846

William Morton was one of the first individuals to demonstrate how ether could be used to remove the pain of operations. His use of anesthesia was displayed at a public demonstration to the surgeons of the Massachusetts General Hospital in Boston on Oct. 16, 1846, where John Collins Warren excised a tumor from a patient's neck. William Morton wasn't necessarily the first to discover or invent anesthetics, but his name is most commonly referenced when speaking of the first practitioners to use the drug. In fact, for several years, various controversies and litigation surrounded the credit for the development of anesthesia.

Antibiotics: Alexander Fleming—1928

Alexander Fleming discovered the active substance he termed "penicillin" while working on the influenza virus. Fleming made this discovery by observing that mold had developed accidentally on a staphylococcus culture plate and that the mold had created a bacteria-free circle around itself. He was inspired to experiment further and found that a mold culture prevented the growth of staphylococci, which verified his discovery. To this day, penicillin is used to treat a host of bacterial infections.

Pasteurization: Louis Pasteur—1862

Louis Pasteur developed the process now known as "pasteurization," which is a process of heating food to a specific temperature for a definite length of time and then cooling it immediately to reduce the number of viable pathogens that may cause disease. Dairy products, canned foods, juices, syrups, water, and wines are the primary products that are pasteurized today.

Modern Automobile: Karl Benz—1886

Karl Benz patented all of the processes that made the internal combustion engine feasible for use in cars. Karl Benz and his wife, Bertha Ringer Benz, were the founders of the Mercedes-Benz automobile manufacturing company.

Modern Alternating Current Electrical Supply System: Nikola Tesla—1891

Nikola Tesla filed for seven U.S. patents in the field of polyphase alternating current motors and power transmission. Tesla's patents comprised a complete system of generators, transformers, transmission lines, motors, and lighting. Tesla is also credited with the invention of the radio. However, a patent dispute with the Marconi Company resulted, ultimately leading to the U.S. Supreme Court ruling for Tesla after his death.

Electronic Digital Computer: John Atanasoff and Clifford Berry—1937

John Atanasoff and Clifford Berry constructed the first electronic computer with vacuum tubes while working for Iowa State College. The Atanasoff-Berry computer was the first digital computer. It introduced the concepts of binary arithmetic, regenerative memory, and logic circuits. The Atanasoff-Berry machine never reached the production stage and remained a prototype.

While this list consists of well-known and distinguished inventors, it is important to note that their works were built upon the ideas and labor of many people in order to create the final product or service that we enjoy and use today. Many of the contributors to a key invention or innovation often go unremembered and uncompensated. Hopefully, governments worldwide will strive to resolve this problem by implementing a more equitable patent system.

The most recent significant step toward accomplishing this goal in patent law was the passage of the America Invents Act on Sept. 16, 2011. The passage of this Act moved the U.S. patent system from a "first to invent" to a "first to file" system, which means that all parties know upfront that if they have a good idea for an invention, they need to be the first to file a patent application with the United States Patent and Trademark Office to protect their intellectual property rights. Passage of this Act also eliminated delays previously experienced through interference proceedings and allowed a patented product to come to market in an expedited manner.

What Can Be Invented to Make Life Easier?

If you can think of something that makes life easier, you can probably create it. Computers, design applications, three-dimensional printers, and other technological innovations make the creation process much easier now than in the past.

What Is the Difference Between a Patent and an Invention?

An invention is something created by someone. A patent grants the exclusive rights to the patent filer. Patents generally last for a specific period, based on the type of patent it is—in the U.S., the term for a utility patent is 20 years.

What Inventions Changed Life?

There are hundreds of inventions that have changed the way we live. One of the most significant was agriculture, which moved us from hunter/gatherers to farmers and reduced human migratory patterns. The printing press and steam engine are two other notable inventions attributed with drastically changing life.

For current entrepreneurs , the 2011 change in U.S. patent law, with the use of low-cost, powerful personal computers and the affordability of the ever-expanding internet, should provide a much greater business environment for establishing a successful small business.

We have already seen a number of relatively new and successful companies that have benefited from online intangible business models. Examples include Google, Amazon, eBay, YouTube, LinkedIn, Craigslist, Wikipedia, and PayPal, to name a few. With the U.S.'s progressive patent law , new online businesses have an additional advantage for establishing a successful small business operation.

Pickering, John. " The History of Paper Money in China ." Journal of the American Oriental Society , vol. 1, no. 2, 1844, pp. 138.

Riedel, Stefan. " Edward Jenner and The History of Smallpox and Vaccination ." Baylor University Medical Center Proceedings , vol. 18, no. 1, January 2005, pp. 21-25.

The University of Alabama at Birmingham, Reynolds-Finley Historical Library. " Morton, William T. G. (1819-1868) ."

Center for the History of Medicine, Countway Library of Medicine. " The Origins of Anesthesia ."

Columbia University, Mailman School of Public Health. " Penicillin: 83 Years Ago Today ."

Mitchell, Jessica. " 19th Century Developments in Food Preservation ." Tenor of Our Times , vol. 8, no. 13, Spring 2019, pp. 93-96.

Mercedes-Benz Group. " Company History: The First Automobile, 1885–1886 ."

Massachusetts Institute of Technology. " Nikola Tesla: Alternating Current Motor ."

Massachusetts Institute of Technology. " Nikola Tesla ."

Iowa State University, Department of Electrical and Computer Engineering. " History of Computing ."

Iowa State University, Department of Electrical and Computer Engineering. " Clifford Berry .'

U.S. Patent and Trademark Office. " Leahy–Smith America Invents Act ."

United States Patent and Trademark Office. " 2701 Patent Term [R-07.2022] ."

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Cars – The Invention that Changed All of Humanity

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Published: Dec 3, 2020

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What Do You Think Is The Most Important Invention Of The Past 100 Years

by Manjusha Nambiar · Published April 8, 2019 · Updated April 20, 2024

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A lot of innovative, useful and lifesaving inventions made their debut during the last 100 years. Antibiotics, for example, saved countless lives from deadly diseases; airplanes reduced travel time and made the world one small village. All of these are important inventions; even so, in my opinion, no other invention has had a greater impact on humanity than the invention of the computer.

Computers changed the way people live, work and relax. Today, it is impossible to even imagine a life without computers. Gone are the days when people did the accounts or typed documents manually. Now everything is done by the computers. The biggest advantage of using the computer is that it has got a memory large enough to store every bit of data known to humans. Computers do not make mistakes; nor do they get tired. Needless to say, computers have become a necessity in all fields. Another advantage of this little machine is that it has made other inventions even better. For example, computers are used in aviation and they have made air travelling safer. Likewise, computers are used in the medical field as well and they make the diagnosis of many diseases easier. In this way, they play the same role as antibiotics in saving lives.

Computers have also changed the way we spend our leisure time. Instead of reading a newspaper or watching a movie on their television, people now play games on their computer or chat with their friends on social networking sites. Unlike a newspaper or a television a computer can deliver the exact same content that the viewer needs.

In conclusion, all inventions are important and beneficial; even so, in my opinion, the computer is the most important invention because it is useful in its own right; it has also enhanced the functioning of other inventions like aeroplanes or medical equipments.

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Inventors And Inventions Essay & Paragraph In English

In this article you can read a brief paragraphs essay about inventors and inventions. I hope you will find following composition a meaningful for all class students.

The process of creating something new that has value is known as invention. This could be a new product , a new process, or a new way of doing something. Taking what already exists and making it better, faster, or cheaper is a common method of invention.

Table of Contents

500 Words Paragraph Inventions

Individual inventors’ hard work and dedication have resulted in many great inventions. These inventors are frequently enthusiastic about their work and devote a significant amount of time to developing their concepts. Thomas Edison, who invented the light bulb, and Eli Whitney, who invented the cotton gin, are two well-known inventors.

Individuals do not, however, create all inventions. Sometimes groups of people collaborate to create new products or processes. The Wright brothers, for example, were not the only people involved in the development of the first airplane. They had a team of people who helped them with their ideas and prototypes.

Inventions have transformed society as we know it, making life easier and more efficient for people. Some inventions, such as cell phones and televisions, have changed the world so dramatically that they have become an essential part of everyone’s daily lives. Inventions improve our lives in a variety of ways, including improved health care, transportation, communication , and more!

As you can see, great inventors create some of the most important things in life. People make the world go round by creating new things that benefit everyone, whether they do so alone or as part of a team. Whether it is cute cat videos on YouTube, an app to help you hail a Left, or even a good old- fashioned light bulb inventions have improved our lives!

What do they imply? Is not invention the process of creating something new and valuable? Is this to say that anything goes?

No way, no how. For example, if I went outside right now and made fire out of thin air, I would be creating something new, but it would be worthless, so it would not be an invention. Something must be valuable to someone in order to meet the definition of invention. It could be value to the creator, such as a new toy they created for themselves, or value to others, such as a new medical procedure that saves lives. Creating things that are useful and valuable to someone is what invention is all about.

Who was the inventor of the light bulb? The light bulb was invented by Thomas Edison. He spent a lot of time working on different versions of the light bulb and came up with the idea of using electricity to power lights.

Hello! Welcome to my Blog StudyParagraphs.co. My name is Angelina. I am a college professor. I love reading writing for kids students. This blog is full with valuable knowledge for all class students. Thank you for reading my articles.

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Advantages and disadvantages of modern inventions essay IELTS 7 band

In this lesson, you will find IELTS writing task 2 essay and answer “Advantages and disadvantages of modern inventions essay IELTS 7 band”

You should spend about  40  minutes on this task.

The modern invention brings many disadvantage to society, do you agree or disagree? You should write at least  250  words.

Advantages and disadvantages of modern inventions essay IELTS 7 band sample answer

The evolution in science has picked up pace like never before, now a days we are inundated with the new inventions which promise to be the best so far and make our lives better but at the same time there are quite a few people who argue that new inventions have caused more problems to us by making us totally materialistic in approach with utter disrespect for human values. They opine that these so called new inventions have made the pace of life extremely fast and have not left any leisure time for us to enjoy.

It is undoubtedly true that modern inventions have brought lot of benefits to our society and these inventions have made our lives better, its hard to imagine how life would be without these inventions such as mobile phone and internet which allow us to remain connected with whole world the entire time, the wealth of invaluable information on every conceivable topic is available at the touch of few buttons using internet. It has also allowed little known people to be heard all over the world by integrating social media. These are just a few examples of how well modern inventions have served us and this list is countless. Therefore, it is easy to conclude that modern inventions have served us really very and helped us evolve over these years.

Conversely modern inventions have also brought their own set of problems to us for example because of fast pace of life our lives have become more stressful as pressure to achieve more is takes heavy toll on our life it has brought to the fore many diseases unheard of, furthermore easy availability has made us lazy and aloof as gadgets have taken over the place of leisure time. Also excessive use of social media over internet is waste of time that could have been used for other meaningful activities.

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