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week

(Encyclopedia)week, period of time shorter than the month, commonly seven days. The ancient Egyptians used a 10-day period, as did the French under the short-lived French Revolutionary calendar. In many regions a f...

forestry

(Encyclopedia)forestry, the management of forest lands for wood, water, wildlife, forage, and recreation. Because the major economic importance of the forest lies in wood and wood products, forestry has been chiefl...

radical, in mathematics

(Encyclopedia)radical, in mathematics, symbol () placed over a number or expression, called the radicand, to indicate a root of the radicand. When used without a sign or index number, as in 4, it designates the pos...

Hoving, Thomas Pearsall Field

(Encyclopedia)Hoving, Thomas Pearsall Field, 1931–2009, American art historian, museum director, and public official, b. New York City, grad. Princeton (B.A. 1953, M.A., Ph.D. 1959). He joined (1959) the Metropol...

Hoar, George Frisbie

(Encyclopedia)Hoar, George Frisbie, 1826–1904, American legislator, b. Concord, Mass. He practiced law, became a Republican in politics, and was U.S. Representative (1869–77) and U.S. Senator (1877–1904). Hoa...

Zorach, William

(Encyclopedia)Zorach, William zŏrˈäk [key], 1887–1966, American sculptor, b. Lithuania. His family emigrated to the United States when he was four and settled near Cleveland. After studying at the Cleveland Sc...

Gordon, Jeff

(Encyclopedia)Gordon, Jeff (Jeffery Michael Gordon). 1971–, American auto racer, b. Vallejo, Calif. The National Association for Stock Car Auto Racing's (NASCAR) Rookie of the Year in 1993, “The Kid” became t...

Lumet, Sidney

(Encyclopedia)Lumet, Sidney lo͞o-mĕtˈ [key], 1924–2011, one of the great American film directors of the 20th cent., b. Philadelphia. A child actor in New York's Yiddish radio and theater and (1935–41) on Bro...

Delaware River Basin Compact

(Encyclopedia)Delaware River Basin Compact dĕlˈəwâr, –wər [key], providing for the utilization and development of the water resources of the Delaware River basin. In 1961 the federal government and the state...

Barrows, Samuel June

(Encyclopedia)Barrows, Samuel June, 1845–1909, American clergyman and reformer, b. New York City. He was a pastor in Dorchester, Mass., and later edited (1880–96) the Christian Register, a Unitarian weekly. In ...