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complementarity principle
(Encyclopedia)complementarity principle, physical principle enunciated by Niels Bohr in 1928 stating that certain physical concepts are complementary. If two concepts are complementary, an experiment that clearly i...Ehrenfest, Paul
(Encyclopedia)Ehrenfest, Paul poul āˈrənfĕst [key], 1880–1933, Austrian physicist. In 1904, Ehrenfest received his doctorate in theoretical physics in Vienna and married the Russian mathematician Tatyana Alex...Landau, Lev Davidovich
(Encyclopedia)Landau, Lev Davidovich lyĕf dəvēˈdəvĭch ləndouˈ [key], 1908–68, Soviet physicist, b. Baku, Azerbaijan. A child prodigy in mathematics, he entered Baku Univ. at 14; at 21 he received a doctor...Sommerfeld, Arnold Johannes Wilhelm
(Encyclopedia)Sommerfeld, Arnold Johannes Wilhelm ärˈnōlt yōhänˈəs vĭlˈhĕlm zômˈərfĕlt [key], 1868–1951, German physicist and teacher. He received a Ph.D. at Königsburg Univ. in 1891 and was a prof...Steno, Nicolaus
(Encyclopedia)Steno, Nicolaus nēls stānˈsən [key], 1638–86, Danish anatomist, geologist, and Roman Catholic prelate. He lived principally in Copenhagen, Paris, and Florence. He investigated the heart, brain, ...correspondence principle
(Encyclopedia)correspondence principle, physical principle, enunciated by Niels Bohr in 1923, according to which the predictions of the quantum theory must correspond to the predictions of the classical theories of...Nielsen, Carl
(Encyclopedia)Nielsen, Carl nēlˈsən, Dan. nĭlˈsən [key], 1865–1931, Danish composer. Nielsen was a pupil of Niels Gade at the Royal Conservatory in Copenhagen. Considered Denmark's foremost composer, he is ...Köhler, Georges Jean Franz
(Encyclopedia)Köhler, Georges Jean Franz kōˈlər, Ger. köˈlər [key], 1946–95, German immunologist, Ph.D. Univ. of Freiburg, 1974. He worked (1974–76) with César Milstein at the Laboratory of Molecular Bi...Holberg, Ludvig, Baron
(Encyclopedia)Holberg, Ludvig, Baron lo͞oᵺˈvē bärōnˈ hōlˈbĕr [key], 1684–1754, Danish dramatist, essayist, poet, and historian, apostle of the Enlightenment in Scandinavia. Born in Norway, he studied t...Milstein, César
(Encyclopedia)Milstein, César, 1927–2002, Anglo-Argentine immunologist, Ph.D. Cambridge, 1960. He worked (1961–63) at the National Institute of Microbiology, Buenos Aires, but following a military coup he resi...Browse by Subject
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