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kite, in aviation and recreation

(Encyclopedia)kite, in aviation, aircraft restrained by a towline and deriving its lift from the aerodynamic action of the wind flowing across it. Commonly the kite consists of a light framework upon which paper, s...

Rittenhouse, David

(Encyclopedia)Rittenhouse, David, 1732–96, American astronomer and instrument maker, b. near Germantown, Pa., self-educated. A clockmaker by trade, he developed great skill in the making of mathematical instrumen...

Tugwell, Rexford Guy

(Encyclopedia)Tugwell, Rexford Guy, 1891–1979, American economist and political scientist, b. Chautauqua co., N.Y., grad. Wharton School, Univ. of Pennsylvania (B.S., 1915; Ph.D., 1922). He taught economics at th...

Williamson, Hugh

(Encyclopedia)Williamson, Hugh, 1735–1819, American political leader, physician, and scientist, b. West Nottingham, Pa. He studied theology, preached for a short time, and then was (1760–63) professor of mathem...

Wheeler, Burton Kendall

(Encyclopedia)Wheeler, Burton Kendall, 1882–1975, U.S. senator (1923–47), b. Hudson, Mass. He practiced law in Butte, Mont. Wheeler was (1911–13) a member of the state legislature and was appointed (1913) fed...

Bethune, Mary McLeod

(Encyclopedia)Bethune, Mary McLeod bəthyo͞onˈ [key], 1875–1955, American educator, b. Mayesville, S.C., grad. Moody Bible Institute, Chicago, 1895. The 17th child of former slaves, she taught (1895–1903) in ...

Tehran Conference

(Encyclopedia)Tehran Conference, Nov. 28–Dec. 1, 1943, meeting of President Franklin Delano Roosevelt, Prime Minister Winston Churchill, and Premier Joseph Stalin at Tehran, Iran. The conference was held to stren...

Schneiderman, Rose

(Encyclopedia)Schneiderman, Rose shnīˈdərmən [key], 1884–1972, American labor leader, b. Poland. She emigrated to the United States in 1890. After working as a lining stitcher in a cap factory, she was instru...

Sparks, Jared

(Encyclopedia)Sparks, Jared, 1789–1866, American historian and educator, b. Willington, Conn. He studied theology, mathematics, and natural philosophy at Harvard (1817–19). He was pastor of a Unitarian church i...

Baldwin, Abraham

(Encyclopedia)Baldwin, Abraham, 1754–1807, American political leader, b. Guilford, Conn. After serving as a chaplain in the American Revolution, he studied law and in 1784 was admitted to practice in Georgia. He ...