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ratio

(Encyclopedia)ratio. The ratio of two quantities expressed in terms of the same unit is the fraction that has the first quantity as numerator and the second as denominator. For example, if in a group of 100 people ...

Paphlagonia

(Encyclopedia)Paphlagonia păfˌləgōˈnēə [key], ancient country of N Asia Minor, between Bithynia and Pontus on the Black Sea coast, in modern Turkey. A mountainous district with the Halys as its chief river, ...

Navajo Dam

(Encyclopedia)Navajo Dam, 402 ft (123 m) high and 3,648 ft (1,112 m) long, NW N.Mex., on the San Juan River, near the Colo. line; built 1958–63 by the U.S. Bureau of Reclamation. The dam, a major unit of the Colo...

power, in physics

(Encyclopedia)power, in physics, time rate of doing work or of producing or expending energy. The unit of power based on the English units of measurement is the horsepower, devised for describing mechanical power b...

Churchill, Sir Winston Leonard Spencer, British statesman, soldier, and author

(Encyclopedia)Churchill, Sir Winston Leonard Spencer, 1874–1965, British statesman, soldier, and author; son of Lord Randolph Churchill. Churchill was undoubtedly one of the greatest public figures of the 20t...

Bradford, William, 1663–1752, British printer in the American colonies

(Encyclopedia)Bradford, William, 1663–1752, British pioneer printer in the American colonies. Born in Leicestershire, England, he served an apprenticeship under a London printer before emigrating in 1685 to Phila...

Ångström, Anders Jöns

(Encyclopedia)Ångström, Anders Jöns änˈdərs yöns ōngˈström [key], 1814–74, Swedish physicist. He was educated at the Univ. of Uppsala and in 1839 became a member of its faculty. He is particularly noted...

Cockrell, Francis Marion

(Encyclopedia)Cockrell, Francis Marion kŏkˈrəl [key], 1834–1915, Confederate general and U.S. senator, b. Johnson co., Mo. Enlisting as a private with Confederate forces in the Civil War, he became a brigadier...

Pamphylia

(Encyclopedia)Pamphylia pămfĭlˈēə [key], ancient region of S Asia Minor, on the coast between Lycia and Cilicia, in present S Turkey. Its chief cities were Attalia, Side, and Perga. Pamphylia was not a politic...

legion

(Encyclopedia)legion, large unit of the Roman army. It came into prominence c.400 b.c. It originally consisted of 3,000 to 4,000 men drawn into eight ranks: the first six ranks, called hoplites, were heavily armed,...