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See also:PELTIER, See also:JEAN See also:CHARLES ATHANASE (1785-1845) , See also:French physicist, was See also:born at See also:Ham (See also:Somme) on the 22nd of See also:February 1785. He was originally a watchmaker, but retired from business about the See also:age of See also:thirty and devoted himself to experimental and observational See also:science. His papers, which arenumerous, are devoted in See also:great See also:part to atmospheric See also:electricity, waterspouts, cyanometry and polarization of skylight, the temperature of See also:water in the spheroidal See also:state, and the boiling-point at great elevations. There are also a few devoted to curious points of natural See also:history. But his name will always be associated with the thermal effects at junctions in a voltaic See also:circuit. His great experimental See also:discovery, known as the " Peltier effect," was that if a current pass from an See also:external source through a circuit of two metals it cools the junction through which it passes in the same direction as the thermo-electric current which would be caused by directly See also:heating that junction, while it heats the other junction (see THERM0,-ELECTRICITY). Peltier died in See also:Paris on the 27th of See also:October 1845.
End of Article: PELTIER, JEAN CHARLES ATHANASE (1785-1845)
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