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Roth, Alvin Elliot

(Encyclopedia)Roth, Alvin Elliot, 1951–, American economist, b. New York City, Ph.D Stanford, 1974. He has been a professor in economics and business administration at the Univ. of Illinois (1974–82), the Univ....

turbine

(Encyclopedia)CE5 Types of turbines turbine, rotary engine that uses a continuous stream of fluid (gas or liquid) to turn a shaft that can drive machinery. A water, or hydraulic, turbine is used to drive electr...

Hermite, Charles

(Encyclopedia)Hermite, Charles shärl ĕrmētˈ [key], 1822–1901, French mathematician. A professor at the École polytechnique, Paris (1869–76), and at the Faculty of Sciences (1869–97), he exerted a strong ...

Nevado del Ruiz

(Encyclopedia)Nevado del Ruiz, volcano, 17,457 ft (5,321 m) high, in the Cordillera Central of the N Andes, E Colombia, on the Caldas-Tolima dept. border. A broad, glacier-covered stratovolcano, it can produce expl...

Von Neumann, John

(Encyclopedia)Von Neumann, John noiˈmän [key], 1903–57, American mathematician, b. Hungary, Ph.D. Univ. of Budapest, 1926. He came to the United States in 1930 and was naturalized in 1937. He taught (1930–33)...

Banach, Stefan

(Encyclopedia)Banach, Stefan stĕˈfän bäˈnäkh [key], 1892–1945, Polish mathematician. He was educated at the Institute of Technology in Lviv; his doctoral thesis laid the foundations of modern functional ana...

Driesch, Hans Adolf Eduard

(Encyclopedia)Driesch, Hans Adolf Eduard häns äˈdôlf āˈdo͞oärt drēsh [key], 1867–1941, German philosopher, b. Bad Kreuznach, grad. (zoology) Univ. of Jena, 1889. His early interest in biology was gradual...

Shapley, Lloyd Stowell

(Encyclopedia)Shapley, Lloyd Stowell shăpˈlē [key], 1923–2016, American mathematician and economist, b. Cambridge, Mass., Ph.D Princeton, 1953; son of Harlow Shapley. He worked at the RAND Corp. from 1954 to 1...

Graham, Thomas

(Encyclopedia)Graham, Thomas, 1805–69, Scottish chemist, best known for research in diffusion in both gases and liquids that led to his formulation of Graham's law. His discovery that certain substances (e.g., gl...

Cayley, Arthur

(Encyclopedia)Cayley, Arthur kāˈlē [key], 1821–95, English mathematician. He was admitted to the bar in 1849. In 1863 he was appointed first Sadlerian professor of mathematics at Cambridge. His researches, whi...