Chinese pictorial version of the conflict at Foo-chow: repulse of the French Gun-boats
XJF315750 Chinese pictorial version of the conflict at Foo-chow: repulse of the French Gun-boats, from 'The Illustrated London News', 1884 (engraving) by Chinese School, (19th century); Private Collection; (add.info.: The Battle of Fuzhou, a naval battle fought on 23rd August 1884, the opening battle of the Sino-French War (August 1884-April 1885);); Chinese, out of copyright
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Alessandro Voltas wet pile battery, 1800. Artist: Unknown
Alessandro Volta's wet pile or battery, 1800. Italian physicist Volta (1745-1827) was the inventor of the voltaic pile, an early battery and the first source of current electricity. This consisted of two different metals, separated by chemicals in order to enable a flow of electricity. In 1775, he invented the electrophorus, a precursor of the induction machine, and in 1777 he invented an 'inflammable air' electric pistol. The unit of electromotive force 'volt' is named after him. From Volta's paper published in Philosophical Transactions of the Royal Society, London, 1800.
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Voltaic pile made by Volta, 1799
Original voltaic pile. An original voltaic pile, an early form of battery, made in 1799 by Alessandro Volta (1745-1827). The three perspex rods are modern additions to hold the pile together. The 15cm-tall pile is a stack of alternating discs of zinc and copper. The discs are separated by felt or paper discs. When immersed in a suitable electrolyte, such as brine or sulphuric acid, this generates an electrical current. This pile was presented to Michael Faraday when he met Volta in Milan in 1814. it is now on display at the Royal Institution, London.
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