Computers were invented to make complex mathematical calculations possible and make tasks easier for humans. Even modern computers perform calculations in addition to the myriad other tasks they perform. While the first computers were simple devices, modern computers use cutting-edge technology and advanced materials to perform calculations at an incredible rate.Know More
Modern computers can be very small, and they appear in a variety of modern products. Small computers can be found in cellular phones, modern cameras and automobiles, where their incredibly fast mathematical abilities help make the lives of humans easier.
Primitive computers have been around for thousands of years, although they look nothing like modern computers. Completely bereft of moving parts, the first calculating devices were called counting boards. These boards featured grooved lines and beads that could be placed in the grooves. Such calculators were helpful for keeping track of large numbers; but soon, better tools, such as the abacus, were invented. An abacus is a wooden frame with wooden balls that slide back and forth along narrow rods. True calculating devices were invented in the early 19th century; but while these elaborate devices were more helpful than counting boards and similar tools, they were very expensive to construct.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 >