Its the birthday of Henri Becquerel, who was born in 1852 in - TopicsExpress



          

Its the birthday of Henri Becquerel, who was born in 1852 in Paris. In 1896, soon after Wilhelm Roentgen had discovered x rays, Becquerel suspected that phosphorescent salts might emit them too when exposed to bright sunlight. The experiment he designed to test his idea demonstrated instead that the uranium salts he was using emitted penetrating radiation even in the dark. Becquerel had discovered radioactivity!
Posted on: Sun, 15 Dec 2013 14:08:16 +0000

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