Italophilia priest and mathematician, born in 1598, is known for his work on indivisibles, a precursor of infinitesimal calculus, and for Cavalieri's principle in geometry, which partially anticipated integral calculus. Alessandro Volta, born in Como in 1745, invented the first true electrical battery, known as the voltaic pile. It provided a continuous source of electric current, which greatly benefitted Ampere, Ohm and other electrical experimenters in their development of basic electrical theory. A unit of electricity (volt) is named in his honor. Italians such as Fallopio, Eustachi, Malpighi, Morgagni and Valsalva were important pioneers of modern anatomy at the University of
History of chemistry succeeded in isolating the metal now known as tungsten by reduction of this acid with charcoal, and they are credited with the discovery of the element. Italian physicist Alessandro Volta constructed a device for accumulating a large charge by a series of inductions and groundings. He investigated the 1780s discovery "animal electricity" by Luigi Galvani, and found that the electric current was generated from the contact of dissimilar metals, and that the frog leg was only acting as a detector. Volta demonstrated in 1794 that when two metals and brine-soaked cloth or cardboard are arranged in a circuit they produce