Wollaston, William Hyde (1766-1828), an English chemist and physicist. In 1802 Wollaston discovered the dark lines in the solar spectrum (later named Fraunhofer lines). The following year he invented a method for producing platinum in malleable form and discovered two metallic elements: palladium and rhodium. In 1809 Wollaston invented the reflecting goniometer, a device for determining the shapes of crystals. Another of his inventions, in 1812, was the camera lucida.
He is famous for a phrase he never said, for wearing turtlenecks and for hosting the original 'Cosmos' TV series. As enthusiastic about the stars as he was about marijuana, Carl Sagan led a very surprising life. Here are 10 cool facts.
Albert Einstein was a pretty smart guy. When you look up the word "genius" in the dictionary, so the saying goes, it's a pretty safe bet you'll see Einstein's mug. Think you’re smart enough to take on a quiz about the famed thinker?