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rectifier

(Encyclopedia)rectifier, component of an electric circuit used to change alternating current to direct current. Rectifiers are made in various forms, all operating on the principle that current passes through them ...

calumet, peace pipe

(Encyclopedia)calumet [Fr.,=reed], name given by the French to the peace pipe used by the indigenous people of North America for smoking tobacco; it consisted of a long, feathered stem, with or without a pipe bowl....

Helvellyn

(Encyclopedia)Helvellyn hĕlvĕlˈĭn [key], mountain, 3,118 ft (950 m) high, in the Lake District, NW England, SE of Keswick. Near the summit is a memorial to Charles Gough, who died (1805) there of exposure. He w...

Edwards, Edward

(Encyclopedia)Edwards, Edward, 1812–86, English library pioneer. As assistant from 1839 in the British Museum, he helped Sir Anthony Panizzi draw up the rules for the catalog. Edwards collected library statistics...

Schmoller, Gustav

(Encyclopedia)Schmoller, Gustav go͝osˈtäf shmôlˈər [key], 1838–1917, German economist. He was the leader of the younger school of German historical economists, who tried to interrelate economics with the ot...

White, John, artist, cartographer, Virginia pioneer

(Encyclopedia)White, John, fl. 1585–93, artist, cartographer, and Virginia pioneer, b. probably in England. In 1585 he was commissioned to go with the expedition to Roanoke Island to depict life in the New World....

Leonard, Buck

(Encyclopedia)Leonard, Buck (Walter Fenner Leonard), 1907–1997, African-American baseball player, b. Rocky Mount, N.C. Beginning in 1933, he played semiprofessional ball with the Baltimore Stars and the Brooklyn ...

Anson, George Anson, Baron

(Encyclopedia)Anson, George Anson, Baron, 1697–1762, British admiral. In his famous voyage (1740–44) around the world, Anson, in spite of shipwrecks and scurvy, inflicted great damage on Spanish shipping and re...

Earn, Loch

(Encyclopedia)Earn, Loch lŏkh ûrn [key], lake, 7 mi (11.2 km) long and 1 mi (1.6 km) wide, Perth and Kinross and Stirling, central Scotland. Ardvorlich House, on its shore, is the Darlinvarach of Sir Walter Scott...

Saintsbury, George Edward Bateman

(Encyclopedia)Saintsbury, George Edward Bateman sāntsˈbərē [key], 1845–1933, English critic and historian. His many works on English and French literature, notable for their breadth of knowledge and spirited ...