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Spectral Classes for Main Sequence Stars (table)

(Encyclopedia)Characteristics of Spectral Classes for Main Sequence Stars ...

soapstone

(Encyclopedia)soapstone or steatite stēˈətīt [key], metamorphic rock of which the characteristic and usually chief mineral is talc, but which also contains varying parts of chlorite, mica, tremolite, quartz, ma...

Puvis de Chavannes, Pierre

(Encyclopedia)Puvis de Chavannes, Pierre pyĕr püvēˈ də shävänˈ [key], 1824–98, French mural painter, b. Lyons. In 1844 he went to Paris, where he studied under Delacroix and Couture. His painting War (Ami...

Pyramus and Thisbe

(Encyclopedia)Pyramus and Thisbe pĭrˈəməs, thĭzˈbē [key], in classical mythology, youth and maiden of Babylon, whose parents opposed their marriage. Their homes adjoined, and they conversed through a crevice...

quipus

(Encyclopedia)quipus or khipus kēˈpo͞oz [key], groups of strings, knotted for tally, which were used by the Inca for keeping records and sending messages. The quipu, which is believed to have predated the rise o...

Birkhoff, George David

(Encyclopedia)Birkhoff, George David, 1884–1944, American mathematician, b. Overisel, Mich.; father of Garrett Birkhoff. The son of a physician, he was educated at Harvard (B.A., 1905) and the Univ. of Chicago (P...

Briard

(Encyclopedia)Briard brēärdˈ [key], breed of muscular, wiry working dog whose origins may be traced back to 12th-century France. It stands from 22 to 27 in. (55.9–68.6 cm) high at the shoulder and weighs betwe...

Schmidt-Rottluff, Karl

(Encyclopedia)Schmidt-Rottluff, Karl shmĭt-rŏtˈlo͝of [key], 1884–1976, German painter and woodcut artist. Schmidt-Rottluff cofounded and named the Brücke in 1905. After moving to Berlin in 1911, he developed...

Sèvres ware

(Encyclopedia)Sèvres ware, porcelain made in France by the royal (now national) potteries established (1745) by Louis XV at Vincennes, moved (1756) to Sèvres after changing hands. Before 1770 it was a soft-paste ...

shellac

(Encyclopedia)shellac, solution of lac in alcohol or acetone. In commerce the name is applied to the resinous substance (lac) itself rather than to the solution. It ranges in color from orange to light yellow depen...