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Legnica

(Encyclopedia)Legnica lĕgnēˈtsä [key], Ger. Liegnitz, city (1992 est. pop. 106,300), Dolnośląskie prov., SW Poland, on the Kaczawa River. A center of a vegetable-growing region, it also has manufactures of me...

Lens, city, France

(Encyclopedia)Lens läNs [key], city (1990 pop. 35,278), Pas-de-Calais dept., N France. During the 19th and 20th cent. it was one of the most important coal centers in N France, but its mines are now closed. Much o...

Lauenburg

(Encyclopedia)Lauenburg louˈənbo͝orkh [key], former duchy, NE central Germany, on the right bank of the lower Elbe. The duchy belonged to a branch of the house of Saxony from the 12th to the late 17th cent., whe...

White Sands

(Encyclopedia)White Sands, uninhabited desert area, S central N.Mex. It is a center for U.S. military-weapons research and testing. On July 16, 1945, the first atomic bomb was exploded at Holloman Air Force Base (f...

Brockhouse, Bertram

(Encyclopedia)Brockhouse, Bertram, 1918–2003, Canadian physicist, b. Lethbridge, Alta. Educated at the Univ. of British Columbia and Univ. of Toronto (Ph.D., 1950), he was a research officer (1950–59) and head ...

statics

(Encyclopedia)statics, branch of mechanics concerned with the maintenance of equilibrium in bodies by the interaction of forces upon them (see force). It incorporates the study of the center of gravity (see center ...

Tarski, Alfred

(Encyclopedia)Tarski, Alfred tärˈskē [key], 1901–83, Polish-American mathematician and philosopher, Ph.D. Univ. of Warsaw, 1924, b. Alfred Teitelbaum, changed his named 1923. He lectured at Warsaw until 1939, ...

Trois Rivières

(Encyclopedia)Trois Rivières trwä rēvyĕrˈ [key] or Three Rivers, city (1991 pop. 49,426), S Que., Canada, at the confluence of the St. Lawrence and St. Maurice rivers. It is a port and an industrial center. Th...

Torrington

(Encyclopedia)Torrington, city (1990 pop. 33,687), Litchfield co., NW Conn., on the Naugatuck River; inc. 1740. It is the industrial and commercial hub of NW Connecticut and is known for its metal (especially brass...

United States, Great Seal of the

(Encyclopedia)United States, Great Seal of the, official impression that validates a United States government document. It was adopted by the Continental Congress in 1782 and, with only minor changes in the design,...