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
Treaty of Warsaw (1745) Treaty of Warsaw (1745) The Treaty of Warsaw was a diplomatic agreement signed in Warsaw on 8 January 1745. Its birthplace is traced back to Leipzig, Germany. It was an agreement between Great Britain, Austria, the Dutch Republic and Saxony (the Quadruple Alliance) to uphold the pragmatic sanction enabling their favored candidate Maria Theresa to take the throne of the Austrian Empire. It also helped the Austro-Saxon alliance secure "the pecuniary support of the maritime powers by the treaty of Warsaw" (Horn, 34). This brought Saxony into intimate relations with Britain for the first time. It is considered to be