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1790, Mar 121845, Mar 13
an English chemist and physicist. His name is best known for his invention of the Daniell cell, an element of an electric battery much better than voltaic cells. He also invented the dew-point hygrometer known by his name (Quar. Journ. Sci., 1820), and a register pyrometer (Phil. Trans., 1830); and in 1830 he erected in the hall of the Royal Society a water-barometer, with which he carried out a large number of observations. A process devised by him for the manufacture of illuminating gas from turpentine and resin was in use in New York City for a time.
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03/12/1790-John Frederic Daniell, inventor of the first practical electric battery, is born in London, England
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