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ballistics

(Encyclopedia) ballisticsballisticsbəlĭsˈtĭks [key], science of projectiles. Interior ballistics deals with the propulsion and the motion of a projectile within a gun or firing device. Its problems…

Riefenstahl, Leni

(Encyclopedia) Riefenstahl, Leni (Berta Helene Amalie Riefenstahl)Riefenstahl, Lenilāˈnē rēˈfənshtälˌ, bĕrˈtə hālāˈnə ämälˈyə [key], 1902–2003, German filmmaker, b. Berlin. First a dancer, then an…

bastard

(Encyclopedia) bastard, person born out of wedlock whose legal status is illegitimacy. In civil law countries and in about half the states of the United States, the union of the parents in marriage…

space-time

(Encyclopedia) space-time, central concept in the theory of relativity that replaces the earlier concepts of space and time as separate absolute entities. In relativity one cannot uniquely…

steering system

(Encyclopedia) steering system, in automobiles, steering wheel, gears, linkages, and other components used to control the direction of a vehicle's motion. Because of friction between the front tires…

pontoon

(Encyclopedia) pontoon, one of a number of floats used chiefly to support a bridge, to raise a sunken ship, or to float a hydroplane or a floating dock. Pontoons have been built of wood, of hides…

poodle

(Encyclopedia) poodle, popular breed of dog probably originating in Germany but generally associated with France, where it has been raised for centuries. There are three varieties, differing in size…

quietism

(Encyclopedia) quietism, a heretical form of religious mysticism founded by Miguel de Molinos, a 17th-century Spanish priest. Molinism, or quietism, developed within the Roman Catholic Church in…

rationalism

(Encyclopedia) rationalism [Lat.,=belonging to reason], in philosophy, a theory that holds that reason alone, unaided by experience, can arrive at basic truth regarding the world. Associated with…

Beattie, Ann

(Encyclopedia) Beattie, AnnBeattie, Annbēˈtē, bāˈ– [key], 1947–, American writer, b. Washington, D.C. She gained attention in the early 1970s with short stories in the New Yorker; the 48 stories she…