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lutetium

(Encyclopedia)lutetium, formerly lutecium both: lo͞otēˈshēəm [key], metallic chemical element; symbol Lu; atomic number 71; at. wt. 174.9668; m.p. about 1,663℃; b.p. about 3,395℃; sp. gr. 9.835 at 25℃; v...

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 reporter for the New ...

Hughes, Langston

(Encyclopedia)Hughes, Langston (James Langston Hughes), 1902–67, American poet and central figure of the Harlem Renaissance, b. Joplin, Mo., grad. Lincoln Univ., 1929. He worked at a variety of jobs and lived in ...

Alsop, Marin

(Encyclopedia)Alsop, Marin ôlˈsəp [key], 1956–, American conductor, b. New York City. The daughter of professional musicians, she began playing the piano at two and the violin at five. Alsop started conducting...

Coxey, Jacob Sechler

(Encyclopedia)Coxey, Jacob Sechler kŏkˈsē [key], 1854–1951, American social reformer, b. Selinsgrove, Pa. He began his career as a stationary engineer, later turning to the scrap-iron business and then to sand...

Seeger, Ruth Crawford

(Encyclopedia)Seeger, Ruth Crawford, 1901–53, American composer and folklorist, b. East Liverpool, Ohio, as Ruth Porter Crawford, studied American Conservatory, Chicago; stepmother of Pete Seeger and mother of Mi...

Caesar, Sid

(Encyclopedia)Caesar, Sid (Isaac Sidney Caesar), 1922–2014, American comedian, one of the stars of the “golden age of live television,” b. Yonkers, N.Y. While performing in a World War II military show he met...

geopolitics

(Encyclopedia)geopolitics, method of political analysis, popular in Central Europe during the first half of the 20th cent., that emphasized the role played by geography in international relations. Geopolitical theo...

Sturm und Drang

(Encyclopedia)Sturm und Drang shto͝orm o͝ont dräng [key] or Storm and Stress, movement in German literature that flourished from c.1770 to c.1784. It takes its name from a play by F. M. von Klinger, Wirrwarr; od...

yttrium

(Encyclopedia)yttrium ĭtˈrēəm [key] [for Ytterby, a town in Sweden], metallic chemical element; symbol Y; at. no. 39; at. wt. 88.90585; m.p. about 1,522℃; b.p. 3,338℃; sp. gr. about 4.45; valence +3. Yttriu...