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rheostat
(Encyclopedia) rheostatrheostatrēˈəstătˌ [key], device whose resistance to electric current depends on the position of some mechanical element or control in the device. Typically a rheostat consists…Ramsey, Norman Foster, Jr.
(Encyclopedia) Ramsey, Norman Foster, Jr., 1915–2011, American physicist, b. Washington, D.C., Ph.D. Columbia, 1940. A member of the faculty at Harvard from 1947 and the Higgins professor of physics…polyethylene
(Encyclopedia) polyethylenepolyethylenepŏlˌēĕthˈəlēn [key], widely used plastic. It is a polymer of ethylene, CH2=CH2, having the formula (–CH2–CH2–)n, and is produced at high pressures and…Solomon's-seal
(Encyclopedia) Solomon's-seal, any plant of the genus Polygonatum, north-temperate perennial herbs of the family Liliaceae (lily family). The hairy Solomon's-seal (P. pubescens) and the smooth…Communications Satellite Corporation
(Encyclopedia) Communications Satellite Corporation (Comsat), organization incorporated (1962) by an act of Congress to establish a commercial system of international communications using artificial…cordage
(Encyclopedia) cordagecordagekôrˈdĭj [key], collective name for rope and other flexible lines. It is used for such purposes as wrapping, hauling, lifting, and power transmission. Early man used…Curl, Robert Floyd, Jr.
(Encyclopedia) Curl, Robert Floyd, Jr., 1933–, American chemist, b. Alice, Tex., Ph.D. Univ. of California, Berkeley, 1957. Curl has been a professor at Rice Univ. in Houston, Tex., since 1958. In…Zewail, Ahmed Hassan
(Encyclopedia) Zewail, Ahmed Hassan, 1946–2016, Egyptian-American chemist, b. Damanhur, Egypt, Ph.D. Univ. of Pennsylvania, 1974. He became a U.S. citizen in 1982. A professor at the California…Mullis, Kary Banks
(Encyclopedia) Mullis, Kary Banks, 1944–2019, American biochemist, b. Lenoir, N.C., Ph.D. Univ. of California, Berkeley, 1972. Mullis was a researcher with Cetus Corp., Emeryville, Calif., from 1979…neuralgia
(Encyclopedia) neuralgianeuralgian&oobreve;rălˈjə, ny&oobreve;– [key], acute paroxysmal pain along a peripheral sensory nerve. Unlike neuritis, there is no inflammation or degeneration of…Trending
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