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power, in physics

(Encyclopedia) power, in physics, time rate of doing work or of producing or expending energy. The unit of power based on the English units of measurement is the horsepower, devised for describing…

Ephron, Nora Louise

(Encyclopedia) Ephron, Nora Louise, 1941–2012, American writer and film director, grad. Wellesley College (B.A., 1962). Witty, tough, self-deprecating, and ironic in all her guises, she was a…

guinea pig

(Encyclopedia) guinea pigguinea piggĭnˈē [key], domesticated form of the cavy, Cavia porcellus, a South American rodent. It is unrelated to the pig; the name may refer to its shrill squeal. Guinea…

assignats

(Encyclopedia) assignatsassignatsăsˈĭgnăts, äsēnyäˈ [key], paper currency issued during the French Revolution. To redeem the huge public debt and to counterbalance the growing deficit, the…

Macron, Emmanuel Jean-Michel Frédéric

(Encyclopedia) Macron, Emmanuel Jean-Michel Frédéric, 1977–, French political leader and banker, president of France (2017–), b. Amiens, grad. Univ. of Paris Nanterre (2001), Paris Institute of…

hemolysis

(Encyclopedia) hemolysishemolysishĭmŏlˈĭsĭs [key], destruction of red blood cells in the bloodstream. Although new red blood cells, or erythrocytes, are continuously created and old ones destroyed,…

Labor and Employment

Find statistics on employment, worker benefits, minimum wage rates, weekly earnings, and more. Layoff Statistics 50 Highest Metropolitan Areas in 2006: Number of Extended Mass Layoff…

Rothschild, Nathan Meyer

(Encyclopedia) Rothschild, Nathan Meyer, 1777–1836, British banker, b. Frankfurt, Germany; of the famous Rothschild family. He went to England in 1797, was naturalized in 1804, and opened a business…

lie detector

(Encyclopedia) lie detector, instrument designed to record bodily changes resulting from the telling of a lie. Cesare Lombroso, in 1895, was the first to utilize such an instrument, but it was not…

hydrology

(Encyclopedia) hydrology, study of water and its properties, including its distribution and movement in and through the land areas of the earth. The hydrologic cycle consists of the passage of water…