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Arezzo

(Encyclopedia)Arezzo ärĕtˈtsō [key], city, capital of Arezzo prov., Tuscany, central Italy. It is an agricultural trade center and has machine, clothing, gold, and jewelry industrie...

Pasco

(Encyclopedia)Pasco păsˈkō [key], city (1990 pop. 20,337), seat of Franklin co., SE Wash., on the Columbia River near its confluence with the Snake and Yakima rivers. It is a trade and shipping center for the Co...

Tula , city, Russia

(Encyclopedia)Tula to͞oˈlə [key], city (1991 pop. 545,000), capital of Tula region, N central European Russia, on the Upa River, a tributary of the Oka. It is an important rail and highway hub and a manufacturin...

Woods, Granville Taylor

(Encyclopedia)Woods, Granville Taylor,, 1856–1910, African-American inventor, b. Columbus, Ohio. He worked in a railroad shop as a youth, becoming a machinist and blacksmith. He subsequently worked on trains, fir...

bronze, in metallurgy

(Encyclopedia)bronze, in metallurgy, alloy of copper, tin, zinc, phosphorus, and sometimes small amounts of other elements. Bronzes are harder than brasses. Most are produced by melting the copper and adding the de...

bobbin

(Encyclopedia)bobbin, implement on which thread is wound, used in sewing, spinning, weaving, and lace making. Sometimes the wooden spools of sewing thread are called bobbins. The bobbin of a sewing machine is a met...

Zhenjiang

(Encyclopedia)Zhenjiang chĭnˈkyăngˈ, jĭnˈjyängˈ [key], city (1994 est. pop. 405,700), S Jiangsu prov., China, a port at the junction of the Grand Canal with the Chang River. It is also on the Shanghai-Nanji...

Barnard, Christiaan Neethling

(Encyclopedia)Barnard, Christiaan Neethling krĭsˈtēänˌ nāˈᵺĭng bärˈnərd [key], 1922–2001, South African surgeon. The son of a Dutch Reformed minister, Barnard studied medicine at the Univ. of Cape To...

Ryle, Gilbert

(Encyclopedia)Ryle, Gilbert, 1900–1976, British philosopher. A graduate of Oxford, he became a tutor at Christ Church, Oxford, and later was Waynflete professor of metaphysical philosophy (1945–68) there. From ...

rosin

(Encyclopedia)rosin or colophony, hard, brittle, translucent resin, obtained as a solid residue from crude turpentine. Usually pale yellow or amber, its color may vary from brownish-black to transparent depending o...