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Sommerfeld, Arnold 1868-1951
German physicist
Born in Königsberg, Prussia (now Kaliningrad, Russia), he was educated at the University of Königsberg and appointed as professor at the universities of Clausthal (1897), Aachen (1900) and Munich (1906). With Felix Klein he developed the theory of the gyroscope. He researched into wave spreading in wireless telegraphy, and generalized the quantization rules developed by Niels Bohr so that Bohr's quantum model of the atom could be applied to multi-electron atoms. He also evolved a theory of the electron in the metallic state.
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The Chambers Dictionary (13th edition)
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Chambers Biographical Dictionary
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Consult Chambers 21st Century Dictionary, The Chambers Thesaurus (1996) or Chambers Biographical Dictionary (1997 edition with amendments). Enter your search and choose your title from the drop-down menu.
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