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Silvanus

(Encyclopedia)Silvanus, in Roman religion, ancient pastoral deity, protector of uncultivated lands. It was also said that he was the guardian of field boundaries, flocks, and herds. Like the Greek Pan, with whom he...

rugby, game

(Encyclopedia)rugby, game that originated (1823), according to tradition, on the playing fields of Rugby, England. It is related to both soccer and American football. The game is said to have started when a Rugby S...

Dubawnt Lake

(Encyclopedia)Dubawnt Lake do͝obôntˈ [key], one of the largest lakes of Canada, c.1,600 sq mi (4,140 sq km), in S Nunavut Territory. The Dubawnt River flows through it. Located north of the tree line, the lake i...

Garretson, James Edmund

(Encyclopedia)Garretson, James Edmund, 1828–95, American pioneer in oral surgery, b. Wilmington, Del., M.D. Univ. of Pennsylvania, 1859. From 1874 he taught at Philadelphia Dental College (now part of Temple Univ...

Gilbert, William

(Encyclopedia)Gilbert, William, 1544–1603, English scientist and physician. He studied medicine at Cambridge (M.D., 1569), where he was elected a Fellow of St. John's College, and set up practice in London, becom...

weightlessness

(Encyclopedia)weightlessness, the absence of any observable effects of gravitation. This condition is experienced by an observer when he and his immediate surroundings are allowed to move freely in the local gravit...

East Coolgardie Goldfield

(Encyclopedia)East Coolgardie Goldfield ko͞olgärˈdē [key], Western Australia, SW Australia. It is the richest gold field in Australia. The chief mining center is the town of Kalgoorlie. Coolgardie, of little im...

Hansen, William Webster

(Encyclopedia)Hansen, William Webster, 1909–49, U.S. physicist, b. Fresno, Calif. Hansen received his doctorate in physics from Stanford in 1933 and joined the faculty there in 1934. He invented the high-quality ...

Nizhnevartovsk

(Encyclopedia)Nizhnevartovsk nyēzhˌnyĭvärˈtəfsk [key], city (1989 pop. 241,000), N Siberian Russia. The discovery of a huge oil field at nearby Lake Samotlor in 1965 quickly transformed the small village of N...

Leduc

(Encyclopedia)Leduc lədo͞okˈ [key], town (1991 pop. 13,970), central Alta., Canada, S of Edmonton. It is the center of the Leduc oil field (discovered 1947), which is now mostly depleted. The town is an oil stor...