Sheldon Lee Born 1932
[ glăsh′ō ]
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American physicist who developed one of the first theories of an electroweak force, unifying two of the four fundamental forces of nature-the electromagnetic force and the weak force-as two aspects of a single underlying force. He developed the theories of Abdus Salam and Steven Weinberg by introducing a new particle property known as charm, and for this work he shared with Salam and Weinberg the 1979 Nobel Prize for physics.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.