Electric battery common fuels such as gasoline. In automobiles, this is somewhat offset by the higher efficiency of electric motors in converting chemical energy to mechanical work, compared to combustion engines. The usage of "battery" to describe a group of electrical devices dates to Benjamin Franklin, who in 1748 described multiple Leyden jars by analogy to a battery of cannon (Benjamin Franklin borrowed the term "battery" from the military, which refers to weapons functioning together). Italian physicist Alessandro Volta built and described the first electrochemical battery, the voltaic pile, in 1800. This was a stack of copper and zinc plates, separated by
University of Pavia that immediately preceded the Unification (1859–66). During the following centuries, through periods of both adversity and prosperity, the fame of the University of Pavia grew over the last years due to the large number of applicants. Throughout its history, the university has benefited from the presence of many learned men and distinguished scientists who wrote celebrated works and made important discoveries: mathematician Girolamo Cardano (born in Pavia, 1501–76), physicist Alessandro Volta (Pavia chair of natural philosophy 1769-1804), poet Ugo Foscolo (chair of Italian eloquence 1809-10). Three Nobel Prize winners also taught in Pavia: physician Camillo Golgi (at Pavia from 1861),