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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 age of See also: thirty and devoted himself to experimental and observational 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 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
.
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