African American inventor and clothing manufacturer Garrett Augustus Morgan invented hair relaxer in 1877, according to Sisters With Beauty. He subsequently founded the Hair Refining Company to sell his product. The original relaxer was made with soap and alkaline chemicals, which are still used in some modern-day perms and relaxers.
Morgan discovered hair relaxer when he was experimenting with a chemical that he used to clean sewing needles in the factory and make them more efficient. By accident, he discovered that the chemical straightened fabric and hair. Morgan went on to invent the gas mask, the traffic signal and the self-extinguishing cigarette.Learn More
Leonardo da Vinci was born on April 15,1452 in Vinci, Italy. Da Vinci became one of the most important painters of the Italian Renaissance. Some of his most famous artwork includes the “Mona Lisa” and “The Last Supper.”Full Answer >
"Play-Doh" was first invented by Noah McVicker. He was trying to make a wallpaper cleaner that could remove coal residue from walls easily. His nephew Joe discovered that the product was being used by a school to craft Christmas ornaments. By 1956, Joe had named the toy "Play-Doh" and it was being sold in places like Macy's. By 1958, the company had made $3 million.Full Answer >
The first person to split white light into spectral colors with a prism was Italian priest Francesco Maria Grimaldi, in 1665. Isaac Newton introduced the term color spectrum in his "New Theory about Light and Colors," which was published in 1672 and described experiments conducted in 1666.Full Answer >
Italian astronomer Galileo Galilei was the inventor of the first pendulum clock, after his discovery of isochronism, which is the time that the pendulum takes to swing. Contrary to popular belief, Galileo was not the inventor of the telescope; Galileo built a telescope based on creations by the Dutch, and it was known as a spyglass. Galileo also built a thermometer and a compass during his lifetime.Full Answer >