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Ludwik Silberstein : ウィキペディア英語版 | Ludwik Silberstein Ludwik Silberstein (1872 – 1948) was a Polish-American physicist who helped make special relativity and general relativity staples of university coursework. His textbook ''The Theory of Relativity'' was published by Macmillan & Co Ltd in 1914 with a second edition, expanded to include general relativity, in 1924. ==Life== Silberstein was born May 17, 1872 in Warsaw to Samuel Silberstein and Emily Steinkalk. He was educated in Cracow, Heidelberg, and Berlin. To teach he went to Bologna, Italy from 1899 to 1904. Then he took a position at Sapienza University of Rome.〔Jordan D. Marche II (2007) "Ludwik Silberstein", Biographical Encyclopedia of Astronomers, Thomas Hockey editor, pp 1059,60.〕 In 1907 Silberstein described a bivector approach to the fundamental electromagnetic equations.〔 L. Silberstein (1907) "Electromagnetische Grundgleichungen in bivectorielle Behandlung", Annalen der Physik 22:579–86 & 24:783–4〕 When ''E'' and ''B'' represent electric and magnetic vector fields with values in R3, then Silberstein suggested ''E'' + i ''B'' would have values in C3, consolidating the field description with complexification. This contribution has been described as a crucial step in modernizing Maxwell’s equations,〔 V.M. Red’kov, N.G. Tokarevskaya, & George J Spix (2012) "Majora-Oppenheimer approach to Maxwell Electrodynamics: Part I Minkowski Space", Advances in Applied Clifford Algebras 22:1129–49〕 while ''E'' + i ''B'' is known as the Riemann–Silberstein vector. Silberstein taught in Rome until 1920, when he entered private research for the Eastman Kodak Company of Rochester, New York. For nine years he maintained this consultancy with Kodak labs while he gave his relativity course on occasion at the University of Chicago, the University of Toronto, and Cornell University. He lived until January 17, 1948.〔Allen G. Debus, "Ludwik Silberstein", Who's Who in Science, 1968.〕
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