EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY
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Harold Urey (1893-1981), American physical chemist, in his laboratory. Urey won the Nobel Prize for Chemistry in 1934 for the discovery of deuterium, a heavy form (isotope) of hydrogen, and the isolation of heavy water. Urey modified his isotope separation techniques and applied them to uranium, leading the research into the production of an atomic bomb during World War II. After the war Urey moved on to the field of cosmochemistry, a name he coined. His work included a study of the abundance of elements in the solar system, classification of meteorites according to chemical composition and the origins of the solar system.
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