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PIERRE CURIE (1859-1906)

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Originally appearing in Volume V07, Page 644 of the 1911 Encyclopedia Britannica.
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PIERRE See also:CURIE (1859-1906)  , See also:French physicist, was See also:born in See also:Paris on the 15th of May 1859, and was educated at the See also:Sorbonne, where he subsequently became See also:professor of physics . Although he had previously published meritorious researches on piezoelectricity, the magnetic properties of bodies at different temperatures, and other topics, he was chiefly known for his See also:work on See also:radium carried out jointly with his wife, See also:Marie Sklodowska, who was born at See also:Warsaw on the 7th of See also:November 1867 . After the See also:discovery of the radioactive properties of See also:uranium by See also:Henri See also:Becquerel in 1896, it was noticed that some minerals of uranium, such as See also:pitchblende, were more active than the See also:element itself, and this circumstance suggested that such minerals contained small quantities of some unknown substance or substances possessing radioactive properties in a very high degree . Acting on this surmise M. and Mme See also:Curie subjected a large amount of pitchblende to a laborious See also:process of fractionation, with the result that in 1898 they announced the existence in it of two highly radioactive substances, polonium and radium . In subsequent years they did much to elucidate the remarkable properties of these two substances, one of which, polonium, came to be regarded as one of the transformation-products of the other (see See also:RADIOACTIVITY) . In 1903 they were awarded the See also:Davy See also:medal of the Royal Society in recognition of this work, and in the same See also:year the See also:Nobel See also:prize for physics was divided between them and Henri Becquerel . Professor Curie, who was elected to the See also:Academy of Sciences in 1905, was run over by a dray and killed instantly in Paris on the 19th of See also:April 1906 . His See also:elder See also:brother, See also:PAUL . JACQUES CURIE, born at Paris on the 29th of See also:October 1856, published an elaborate memoir on the specific inductive capacities of crystalline bodies (See also:Ann . Chim . Phys . 1889, 17 and 18) .

End of Article: PIERRE CURIE (1859-1906)
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