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helicopter
(Encyclopedia)helicopter, type of aircraft in which lift is obtained by means of one or more power-driven horizontal propellers called rotors. When the rotor of a helicopter turns it produces reaction torque which ...Butler, Benjamin Franklin, 1818–93, American politician and Union general in the Civil War
(Encyclopedia)Butler, Benjamin Franklin, 1818–93, American politician and Union general in the Civil War, b. Deerfield, N.H. He moved to Lowell, Mass., as a youth and later practiced law there and in Boston. He w...Whitehead, Alfred North
(Encyclopedia)Whitehead, Alfred North, 1861–1947, English mathematician and philosopher, grad. Trinity College, Cambridge, 1884. There he was a lecturer in mathematics until 1911. At the Univ. of London he was a ...dictionary
(Encyclopedia)dictionary, published list, in alphabetical order, of the words of a language. In monolingual dictionaries the words are explained and defined in the same language; in bilingual dictionaries they are ...Columbia University
(Encyclopedia)Columbia University, mainly in New York City; founded 1754 as King's College by grant of King George II; first college in New York City, fifth oldest in the United States; one of the eight Ivy League ...integration
(Encyclopedia)integration, in U.S. history, the goal of an organized movement to break down the barriers of discrimination and segregation separating African Americans from the rest of American society. Racial segr...Rothko, Mark
(Encyclopedia)Rothko, Mark rŏthˈkō [key], 1903–70, American painter, b. Dvinsk, Russia (now Daugavpils, Latvia), as Marcus Rotkovitch. His family immigrated to the United States in 1913. He was a student of Ma...Salish
(Encyclopedia)Salish, indigenous people of North America, also known as the Flathead, who in the early 19th cent. inhabited the Bitterroot River valley of W Montana. Their language belongs to the Salishan branch of...Stevenson, Adlai Ewing, 1900–1965, American statesman
(Encyclopedia)Stevenson, Adlai Ewing, 1900–1965, American statesman, b. Los Angeles; grandson of Adlai Ewing Stevenson (1835–1914). A graduate (1922) of Princeton, he received his law degree from Northwestern U...Guizot, François
(Encyclopedia)Guizot, François fräNswäˈ gēzōˈ [key], 1787–1874, French statesman and historian. The son of a Protestant family of Nîmes, he was educated at Geneva. He began a legal career in Paris in 1805...Browse by Subject
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