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resistance, in electricity

(Encyclopedia)resistance, property of an electric conductor by which it opposes a flow of electricity and dissipates electrical energy away from the circuit, usually as heat. Optimum resistance is provided by a con...

quetzal

(Encyclopedia)quetzal kāsälˈ [key], common name for a magnificent bird of the family Trogonidae (trogon family), found in the rain forests from S Mexico to Costa Rica at altitudes of up to 9,000 ft (2,745 m). It...

James, rivers, United States

(Encyclopedia)James. 1 Unnavigable river, 710 mi (1,143 km) long, rising in central N.Dak. and flowing across S.Dak. to the Missouri River at Yankton, S.Dak. Jamestown Dam on the river is an irrigation and flood co...

Hershey, Alfred Day

(Encyclopedia)Hershey, Alfred Day, 1908–1997, American microbiologist, b. Owosso, Mich., Ph.D., Michigan State College (now Michigan State Univ.), 1934. Hershey was a professor at the Washington Univ. School of M...

foreign exchange

(Encyclopedia)foreign exchange, methods and instruments used to adjust the payment of debts between two nations that employ different currency systems. A nation's balance of payments has an important effect on the ...

bounty, payment made by a government

(Encyclopedia)bounty, amount paid by a government for the achievement of certain economic or other goals. It often takes the form of a premium paid for the increased production or export of certain goods. The bount...

Volta

(Encyclopedia)Volta vólˈtə [key], 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...

Whipple, Abraham

(Encyclopedia)Whipple, Abraham, 1733–1819, American Revolutionary naval officer, b. Providence, R.I. In 1759–60, as captain of the privateer Game Cock in the French and Indian Wars, he captured numerous prizes....

Buxar

(Encyclopedia)Buxar or Baksr both: bəksärˈ [key], town, Bihar state, E central India. A British victory at Buxar in ...

Pakenham, Sir Edward Michael

(Encyclopedia)Pakenham, Sir Edward Michael păkˈənəm [key], 1778–1815, British general. He entered the army in 1794 and served in the wars against Napoleon I, emperor of France. He distinguished himself in the...