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
Memorial to Alessandro Valtrini case of Alessandro Valrtrini monument, a medallion-shaped portrait of Valtrini himself. Valtrini had been a wealthy donor during his lifetime. Three churches he had supported erected monuments to him, Il Gesù (where his body remained), Santa Maria sopra Minerva and the Bernini version in San Lorenzo in Damaso. He died in 1633. Francesco Barberini organised the Bernini commission in the late 1630s. Memorial to Alessandro Valtrini The Memorial to Alessandro Valtrini is a funerary monument designed by the Italian artist Gian Lorenzo Bernini in 1639, and executed by his workshop in the same year. It is situated in the church