Inventions Facts for Kids
Genius facts about great inventions
The Romans used a remarkably durable form of concrete made from volcanic ash, lime, and seawater that scientists are still studying today because it actually gets stronger over centuries. Modern Portland cement was invented in 1824 by English bricklayer Joseph Aspdin, who named it after the durable building stone from Portland, England. Concrete is now the most widely used building material in the world.
NASA adopted Velcro extensively for use in spacecraft and space suits, which helped popularize it worldwide. Astronauts use Velcro to attach tools, food packages, and other items to walls so they don't float away in zero gravity. Today over 100 million meters of Velcro tape are produced annually and used in everything from children's shoes to surgical gowns.
The zipper was invented in 1893 by Whitcomb Judson as a fastener for boots, but it took nearly 30 years to become widely popular. Early zippers were unreliable and often popped open unexpectedly. It wasn't until the 1920s that improved zippers began appearing on clothing, and not until the 1930s that fashion designers enthusiastically adopted them.
Aspirin's active ingredient (salicylic acid) was originally derived from willow bark, which had been used as a pain reliever since ancient times by Egyptians and Hippocrates. Felix Hoffmann at Bayer chemically synthesized a more stomach-friendly version called acetylsalicylic acid in 1897. Aspirin became the world's first mass-market pharmaceutical and remains one of the most widely taken drugs in history.
Samuel Morse invented Morse code in 1836 as a way to send messages over his newly developed electric telegraph. The code uses dots and dashes representing letters and numbers. When the first telegraph line connected Washington D.C. to Baltimore in 1844, Morse famously sent the message 'What hath God wrought!' — instantly transmitting information over 40 miles for the first time.
The computer mouse was invented by Doug Engelbart at Stanford Research Institute in 1964. The first prototype was a wooden block with two metal wheels and a single button. Engelbart demonstrated it in 1968 alongside video conferencing, word processing, and the concept of hyperlinks — a presentation so far ahead of its time it is now called 'The Mother of All Demos.'
Safety glass was accidentally discovered in 1903 by French chemist Édouard Bénédictus, who dropped a glass flask coated with a dried plastic film and noticed it shattered but held its shape rather than scattering sharp fragments. He remembered this years later when he read about injuries from automobile windshields and developed a commercial safety glass. It is now used in all car windshields.
The friction match was invented in 1826 by English chemist John Walker, who discovered that a stick coated with a mixture of chemicals would ignite when scraped across a rough surface. He sold his matches locally but never patented the invention. Improved safety matches, where the chemical is split between the match head and the striking surface, were invented in Sweden in 1844.
Benjamin Franklin invented bifocal glasses around 1784 because he was tired of switching between two pairs of glasses — one for reading and one for seeing at a distance. He had the lenses from both pairs cut in half and combined into a single pair. Despite this and many other practical inventions, Franklin refused to patent any of his inventions, believing they should benefit all of humanity freely.
Thomas Edison did not actually invent the light bulb from scratch — more than 20 inventors had created earlier versions. What Edison invented in 1879 was the first practical, long-lasting incandescent bulb using a carbonized cotton filament. He also developed the entire electric power distribution system needed to make electric lighting practical. When asked about his many failed attempts, he reportedly said each failure taught him something.