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intermolecular forces

(Encyclopedia)intermolecular forces, forces that are exerted by molecules on each other and that, in general, affect the macroscopic properties of the material of which the molecules are a part. Such forces may be ...

symphony

(Encyclopedia)symphony [Gr.,=sounding together], a sonata for orchestra. The Italian operatic overture, called sinfonia, was standardized by Alessandro Scarlatti at the end of the 17th cent. into three sections, th...

David, Gerard

(Encyclopedia)David or Davit, Gerard both: gāˈrärt däˈvēt [key], c.1460–1523, Flemish painter, b. Oudewater, Holland. By 1484 he had established himself in Bruges, where he remained until his death. Depende...

Paulding, James Kirke

(Encyclopedia)Paulding, James Kirke pôlˈdĭng [key], 1778–1860, American author and public official, secretary of the navy (1838–41) under Van Buren, b. near Millbrook, N.Y. He collaborated with Washington Ir...

Stuart, John McDouall

(Encyclopedia)Stuart, John McDouall, 1815–66, Scottish explorer in Australia. He emigrated (1838) to S Australia; there, as a draftsman, he joined Charles Sturt's expedition (1844–45) to central Australia. Betw...

harmonica

(Encyclopedia)harmonica. 1 The simplest of the musical instruments employing free reeds, known also as the mouth organ or French harp. It was probably invented in 1829 by Friedrich Buschmann of Berlin, who called h...

Furtwängler, Wilhelm

(Encyclopedia)Furtwängler, Wilhelm fo͝ortˈvĕng-lər [key], 1886–1954, German conductor, b. Berlin; son of Adolf Furtwängler. One of the greatest orchestral conductors of the 20th cent., he studied music in ...

Barenboim, Daniel

(Encyclopedia)Barenboim, Daniel bârˈənboimˌ [key], 1942–, Israeli pianist and conductor, b. Buenos Aires, Argentina. He made his debut in Buenos Aires at seven. His family settled in Israel in 1952, and he st...

Tharp, Twyla

(Encyclopedia)Tharp, Twyla twīˈlə [key], 1941–, American dancer and choreographer, b. Portland, Ind. An eclectic, innovative choreographer and dancer, she danced (1963–65) with Paul Taylor. For more than 20 ...

Reed, Ishmael Scott

(Encyclopedia) Reed, Ishmael Scott, 1938- , African-American novelist, poet, and social critic, b. Chattanooga, Tn. When he was a child, Reed’s family moved ...