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Carnot, Nicolas Léonard Sadi

(Encyclopedia)Carnot, Nicolas Léonard Sadi kärnōˈ [key], 1796–1832, French physicist, a founder of modern thermodynamics; son of Lazare N. M. Carnot. His famous work on the motive power of heat (Réflexions ...

electron-volt

(Encyclopedia)electron-volt, abbr. eV, unit of energy used in atomic and nuclear physics; 1 electron-volt is the energy transferred in moving a unit charge, positive or negative and equal to that charge on the elec...

stellar evolution

(Encyclopedia)CE5 The above Hertzsprung-Russell (H-R) diagram shows the track of stellar evolution for a typical star. After spending much of its life evolving toward or along the main sequence, the star becomes...

Ferrier, James Frederick

(Encyclopedia)Ferrier, James Frederick fĕrˈēər [key], 1808–64, Scottish philosopher. He was a professor at Edinburgh (1842–45) and at St. Andrews from 1845 until his death. His major work, the Institutes of...

Stefan, Josef

(Encyclopedia)Stefan, Josef yōˈzĕf shtĕfˈän [key], 1835–93, Austrian physicist. At the Univ. of Vienna he became a professor of physics and later director of the Physical Institute. From his observations on...

Bawendi, Moungi

(Encyclopedia)Moungi Bawendi, 1961–, b. Paris, France, American-Tunisian-French chemist, studied at Harvard University (B.A., 1982; M.A.1983) and the University of ...

Schlesinger, James Rodney

(Encyclopedia)Schlesinger, James Rodney, 1929–2014, U.S. secretary of defense (1973–75) and secretary of energy (1977–79), b. New York City. After graduating from Harvard (A.B., 1950; A.M., 1952; Ph.D., 1956)...

beta particle

(Encyclopedia)beta particle, one of the three types of radiation resulting from natural radioactivity. Beta radiation (or beta rays) was identified and named by E. Rutherford, who found that it consists of high-spe...

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