Screw be an appropriate choice. The left side pedal of a bicycle has a left-hand thread. More generally, screw may mean any helical device, such as a clamp, a micrometer, a ship's propeller, or an Archimedes' screw water pump. There is no universally accepted distinction between a screw and a bolt. A simple distinction that is often true, although not always, is that a bolt passes through a substrate and takes a nut on the other side, whereas a screw takes no nut because it threads directly into the substrate (a screw "screws into something", a bolt "bolts several things together").
Garden of Archimedes was reintroduced to Medieval Europe. Helping Nature: from Galileo's Mechanics to everyday life is an interactive exhibit showing how Galileo used mathematics to reveal the working of simple machines. Weapons of mass education features mathematically based games and puzzles. Other historical sections include A short history of calculus, A short history of trigonometry, Ancient mathematics through stamps, and Pink Numbers – Women and Mathematics. Garden of Archimedes The Garden of Archimedes (Italian: "Il Giardino Di Archimede") is a museum for mathematics in Florence, Italy. It was founded on March 26, 2004 and opened its doors to the public on April