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Keaton, Buster

(Encyclopedia)Keaton, Buster (Joseph Francis Keaton), 1895–1966, American movie actor, b. Piqua, Kans. Considered one of the greatest comic actors in film history, Keaton used his considerable acrobatic skills, w...

Brooke, Rupert

(Encyclopedia)Brooke, Rupert, 1887–1915, English poet. At the outbreak of World War I he joined the Royal Naval Division, served at Antwerp, and was in the Dardanelles expedition when he died of blood poisoning a...

Sadducees

(Encyclopedia)Sadducees săjˈo͝osēz, sădˈyo͝o– [key], sect of Jews formed around the time of the Hasmonean revolt (c.200 b.c.). Little is known concerning their beliefs, but according to Josephus Flavius, t...

Cattermole, George

(Encyclopedia)Cattermole, George, 1800–1868, English watercolor painter and illustrator. His subject matter was varied, and his works were popular during his lifetime. He painted picturesque scenes of antique sub...

caustic

(Encyclopedia)caustic, any strongly corrosive chemical substance, especially one that attacks organic matter. A caustic alkali is a metal hydroxide, especially that of an alkali metal; caustic soda is sodium hydrox...

Compton effect

(Encyclopedia)Compton effect [for A. H. Compton], increase in the wavelengths of X rays and gamma rays when they collide with and are scattered from loosely bound electrons in matter. This effect provides strong ve...

Cronin, James Watson

(Encyclopedia)Cronin, James Watson, 1931–2016, American nuclear physicist, b. Chicago, Ph.D. Univ. of Chicago, 1955. Cronin and co-researcher Val Logsdon Fitch were awarded the 1980 Nobel Prize in Physics for a 1...

adhesion and cohesion

(Encyclopedia)adhesion and cohesion, attractive forces between material bodies. A distinction is usually made between an adhesive force, which acts to hold two separate bodies together (or to stick one body to anot...

dark energy

(Encyclopedia)dark energy, repulsive force that opposes the self-attraction of matter (see gravitation) and causes the expansion of the universe to accelerate. The search for dark energy was triggered by the discov...

carnivore

(Encyclopedia)carnivore kärˈnəvôrˌ [key], term commonly applied to any animal whose diet consists wholly or largely of animal matter. In animal systematics it refers to members of the mammalian order Carnivora...