Volta

Volta

[vohl-tuh, vol-; It. vawl-tah]
Volta, Alessandro, Conte, 1745-1827, Italian physicist. He was professor of physics at the Univ. of Pavia from 1779 and became famous for his work in electricity. Napoleon I made him a count and a senator of the kingdom of Lombardy. Volta invented the so-called Volta's pile (or voltaic pile); the electrophorus; an electric condenser; and the voltaic cell. The volt, a unit of electrical measurement, is named for Volta.
Volta, river, c.290 mi (470 km) long, formed in central Ghana, W Africa, by the confluence of the Black Volta (or Mouhon, c.840 mi/1,350 km long) and the White Volta (or Nakambe, c.450 mi/720 km long), both of which rise in Burkina Faso. The river flows generally south, through a large delta, to the Gulf of Guinea at Ada. The Volta River system drains c.150,000 sq mi (388,500 sq km). Lake Volta (c.3,275 sq mi/8,480 sq km), one of the world's largest artificial lakes, extends c.280 mi (450 km) upstream behind Akosombo Dam, SE Ghana, in the Ajena Gorge. The dam (370 ft/113 m high; completed 1965), the principal unit of the Volta Development Project, regulates the flow of the Volta River, stores water for irrigation, and generates hydroelectricity (750,000-kW capacity) that supports a large aluminum industry. Since the 1980s, droughts have at times reduced the water impounded by the dam and diminished the electricity that can be generated.
Volta, Lake, Ghana: see Volta, river.
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