Word: becquerel
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Dates: during 1920-1929
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...manufactures 90% of the world's radium under Belgian Government control, was restricting that valuable metal's production. The Belgian pitchblende mines, whence the related radium, polonium and lead are refined, are at Katanga, Belgian Congo. Those mines have far outdistanced the Jackinov mines in Czechoslovakia where Becquerel and the Curies got their first pitchblende supplies. Other, but at present little used, sources of radium are autunite deposits in Portugal, betafite deposits in Madagascar, carnotite deposits in Colorado and Australia. These sources might be worked intensively if the British M. P.'s asseverations are true, that Belgium...
...contributions which have been made to science at the cost of the lives of scientific investigators are too numerous and too well-known to need citation. The names of Trudeau, Bergoine, Becquerel, Muller, Macfayden, and hosts of this who have died in the service of humanity are too deeply engraved in the medical and scientific history of the world to fade with the passage of time. There is an impersonal heroism in such quiet sacrifice that endures while other more briefly startling varieties sink gently into oblivion...
...indigenous to the sun only, but in 1895 Sir William Ramsay (1852-1916), the brilliant British chemist, winner of the Nobel Prize in 1904, isolated the element from the earth, shortly after he had similarly found argon, in collaboration with Lord Rayleigh. Later it was discovered by Becquerel, the Curies, Rutherford, Soddy and other experts in radioactivity, that the so-called "alpha particles," little groups of four "protons" and two "electrons" given off regularly by uranium and similar substances in their process of degeneration, are in reality atoms of helium. To isolate helium from uranium in commercial quantities would...
...details of the years 1897-1906 in which radium was discovered form a saga of heroism. Not long after her marriage in 1895, Marie Curie, became interested in the experiments of Henri Becquerel on the salts of the rare metal, uranium. He had found that they emitted certain penetrating rays. Marie Curie took up this work, found that another element, thorium, behaved similarly, and that certain complex minerals also showed radioactivity, which was not, however, proportionate to the quantities of uranium or thorium in them. Pierre Curie, whose main researches up to that time had been on the physics...
...their great work until, in 1910, she isolated the mysterious white metal of radium itself. That her own achievements were as great as her husband's was attested by the Nobel Award in Chemistry (1911) to her alone, eight years after the Physics Prize had been given jointly to Becquerel, Pierre Curie and herself. The Sorbonne appointed her to the chair left vacant by Pierre?the first woman to be so elevated...