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Sims, Christopher Albert

(Encyclopedia) Sims, Christopher Albert, 1942–, American economist, b. Washington, D.C., Ph.D. Harvard (1968). Sims has taught at Harvard (1967–70), the Univ. of Minnesota (1970–90), Yale (1990–99),…

Quetelet, Adolphe

(Encyclopedia) Quetelet, AdolpheQuetelet, Adolpheädôlfˈ kĕtəlāˈ [key], 1796–1874, Belgian statistician and astronomer. He was the first director (1828) of the Royal Observatory at Brussels. As…

Ehrenfest, Paul

(Encyclopedia) Ehrenfest, PaulEhrenfest, Paulpoul āˈrənfĕst [key], 1880–1933, Austrian physicist. In 1904, Ehrenfest received his doctorate in theoretical physics in Vienna and married the Russian…

Boltzmann, Ludwig

(Encyclopedia) Boltzmann, LudwigBoltzmann, Ludwigl&oobreve;tˈvĭkh bôltsˈmän [key], 1844–1906, Austrian physicist, b. Vienna, educated at Univ. of Vienna. He began teaching (1869) at Graz Univ. In…

Prigogine, Ilya

(Encyclopedia) Prigogine, IlyaPrigogine, Ilyaprĭgˈəjēn [key], 1917–2003, Belgian chemist, b. Moscow. He was raised and educated in Belgium, receiving his doctorate in 1941 and joining the faculty of…

proof, in mathematics

(Encyclopedia) proof, in mathematics, finite sequence of propositions each of which is either an axiom or follows from preceding propositions by one of the rules of logical inference (see symbolic…

Mitchell, Wesley Clair

(Encyclopedia) Mitchell, Wesley Clair, 1874–1948, American economist, b. Rushville, Ill. He received his Ph.D. (1899) from the Univ. of Chicago, where he studied under Thorstein Veblen and John Dewey…

Darwin, Charles Galton

(Encyclopedia) Darwin, Charles Galton, 1887–1962, English physicist and administrator. Educated at Cambridge, he worked under Ernest Rutherford at Manchester, where he collaborated with H. G. J.…

Newham

(Encyclopedia) NewhamNewhamny&oomacr;ˈəm, n&oomacr;ˈ– [key], outer borough (1991 pop. 200,200) of Greater London, SE England, on the Thames River. Newham is residential in the northeast. The…

Yang, Chen-ning

(Encyclopedia) Yang, Chen-ningYang, Chen-ningchĕn-nĭng yäng [key], 1922–, American physicist, b. China, Ph.D. Univ. of Chicago, 1948. Yang was a member of the Institute for Advanced Study at…