Urey, Harold C.
American chemist
Harold C. Urey, in full Harold Clayton Urey, (born April 29, 1893, Walkerton, Ind., U.S.—died Jan. 5, 1981, La Jolla, Calif.), American scientist awarded the Nobel Prize for Chemistry in 1934 for his discovery of the heavy form of hydrogen known as deuterium. He was a key figure in the development of the atomic bomb and made fundamental contributions to a widely accepted theory of the origin of the Earth and other planets.
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