Wien, Wilhelm vĭl´hĕlm vēn [key], 1864–1928, German physicist. He was professor at the universities of Giessen (1899), Würzburg (1900–1920), and Munich (from 1920). He received the 1911 Nobel Prize in Physics for his studies on the radiation of heat from black objects. He is noted also for his work on hydrodynamics, X rays, and the radiation of light.
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