History of the battery his iron scalpel, the leg twitched. Galvani believed the energy that drove this contraction came from the leg itself, and called it "animal electricity". However, Alessandro Volta, a friend and fellow scientist, disagreed, believing this phenomenon was caused by two different metals joined together by a moist intermediary. He verified this hypothesis through experiment, and published the results in 1791. In 1800, Volta invented the first true battery, which came to be known as the voltaic pile. The voltaic pile consisted of pairs of copper and zinc discs piled on top of each other, separated by a layer of cloth
Sea Lion (battery-electric locomotive) Sea Lion (battery-electric locomotive) Sea Lion was a 2-foot gauge battery-electric locomotive built by Wingrove & Rogers in 1921 as works no. 313 for the Groudle Glen Railway on the Isle of Man. Together with its sister, "Polar Bear", it was intended that they would replace two Bagnall steam locos of the same names. However, the battery locos were not hugely successful, with "Sea Lion" being scrapped in 1922 following an incident where it fell down the side of the Groudle Glen. It has been proposed to build a replica "Sea Lion" at the Amberley Museum Railway, home of "Polar