rigidly
71severe — severely, adv. severeness, n. /seuh vear /, adj., severer, severest. 1. harsh; unnecessarily extreme: severe criticism; severe laws. 2. serious or stern in manner or appearance: a severe face. 3. grave; critical: a severe illness. 4. rigidly… …
72sextant — /sek steuhnt/, n. 1. an astronomical instrument used to determine latitude and longitude at sea by measuring angular distances, esp. the altitudes of sun, moon, and stars. 2. (cap.) Astron. the constellation Sextans. [1590 1600; < L sextant (s.… …
73torsion bar — a metal bar having elasticity when subjected to torsion: used as a spring in various machines and in automobile suspensions. [1945 50] * * * Rod or bar that resists twisting (see torque) and has a strong tendency to return to its original… …
74Union of Soviet Socialist Republics — a former federal union of 15 constituent republics, in E Europe and W and N Asia, comprising the larger part of the former Russian Empire: dissolved in December 1991. 8,650,069 sq. mi. (22,402,200 sq. km). Cap.: Moscow. Also called Russia, Soviet …
75Louis XIV style — Style of the visual arts produced in France during the reign of Louis XIV. In 1648 Charles Le Brun founded the Royal Academy of Painting and Sculpture, which rigidly dictated styles for the rest of the reign. The most influential painter was… …
76Vico, Giambattista — born June 23, 1668, Naples died Jan. 23, 1744, Naples Italian philosopher of cultural history and law. In his major work, New Science (1725), he attempted to combine history and the more systematic social sciences into a single science of… …
77Watt, James — born Jan. 19, 1736, Greenock, Renfrewshire, Scot. died Aug. 25, 1819, Heathfield Hall, near Birmingham, Warwick, Eng. Scottish engineer and inventor. Though largely self taught, he began work early as an instrument maker and later as an engineer… …
78piston and cylinder — In mechanical engineering, a sliding cylinder with a closed head (the piston) that moves up and down (or back and forth) in a slightly larger cylindrical chamber (the cylinder) by or against pressure of a fluid, as in an engine or pump. The… …
79African music — Introduction the musical sounds and practices of all indigenous peoples of Africa, including the Berber in the Sahara and the San (Bushmen) and Khoikhoin (Hottentot) in Southern Africa. The music of European settler communities and that of… …
80motion picture, history of the — Introduction history of the medium from the 19th century to the present. Early years, 1830–1910 Origins The illusion of motion pictures is based on the optical phenomena known as persistence of vision and the phi phenomenon. The first …
