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Jülich, town, Germany

(Encyclopedia) Jülich, town (1994 pop. 31,780), North Rhine–Westphalia, W Germany. It has some light industry and is the seat of a nuclear research center. Originally a Roman settlement known as…

plutonium

(Encyclopedia) plutoniumplutoniumpl&oomacr;tōˈnēəm [key], radioactive chemical element; symbol Pu; at. no. 94; mass no. of most stable isotope 244; m.p. 641℃; b.p. 3,232℃; sp. gr. 19.84 at 20℃;…

magnetic resonance

(Encyclopedia) magnetic resonance, in physics and chemistry, phenomenon produced by simultaneously applying a steady magnetic field and electromagnetic radiation (usually radio waves) to a sample of…

Livermore

(Encyclopedia) Livermore, city (1990 pop. 56,741), Alameda co., W central Calif.; inc. 1876. Nursery stock is grown, and there is light manufacturing, but the major sources of employment are wineries…

fallout

(Encyclopedia) fallout, minute particles of radioactive material produced by nuclear explosions (see atomic bomb; hydrogen bomb; Chernobyl) or by discharge from nuclear-power or atomic installations…

Weinberg, Steven

(Encyclopedia) Weinberg, Steven, 1933–, American nuclear physicist, b. New York City, Ph.D. Princeton, 1957. Since 1982 he has been a professor at the Univ. of Texas at Austin, having previously been…

mitosis

(Encyclopedia) CE5 Mitosis in a body cell of an animal mitosismitosismītōˈsĭs, mĭ– [key], process of nuclear division in a living cell by which the carriers of hereditary information, or the…

fission

(Encyclopedia) fission, in physics: see nuclear energy and nucleus; see also atomic bomb.

Amchitka

(Encyclopedia) AmchitkaAmchitkaămchĭtˈkə [key], island, 40 mi (64 km) long, in the Rat group of the Aleutian Islands, W Alaska. It was a site in 1965 and 1971 for the underground detonation of…

Tokyo, University of

(Encyclopedia) Tokyo, University of, at Tokyo, Japan; founded in 1877. In the 1920s it became one of the first Imperial universities and remains one of the most prestigious in Japan. It offers…