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Dulles, John Foster

(Encyclopedia)Dulles, John Foster dŭlˈəs [key], 1888–1959, U.S. secretary of state (1953–59), b. Washington, D.C.; brother of Allen Dulles, grandson of John Watson Foster, secretary of state under President ...

thermodynamics

(Encyclopedia)thermodynamics, branch of science concerned with the nature of heat and its conversion to mechanical, electric, and chemical energy. Historically, it grew out of efforts to construct more efficient he...

Sedna

(Encyclopedia)Sedna, in astronomy, the most distant known large object in the solar system. With a highly eccentric elliptical orbit that ranges from an estimated 76 AU to 937 AU, Sedna also has an extremely long o...

Old Person, Earl

(Encyclopedia) Old Person, Earl,1929-2021, leader of the Blackfeet Nation, b. outside Browning, Mt., Blackfeet names Stu Sapoo ("Cold Wind") and ...

Stirling engine

(Encyclopedia)Stirling engine, an external combustion reciprocating engine having an enclosed working fluid that is alternately compressed and expanded to operate a piston, thus converting heat from a variety of so...

Kaliningrad

(Encyclopedia)Kaliningrad kəlyēˌnyĭn-grätˈ [key], formerly Königsberg, city (1989 pop. 401,000), capital of Kaliningrad region, an exclave of W European Russia; on the Pregolya River near its mouth on the Vi...

Pauling, Linus Carl

(Encyclopedia)Pauling, Linus Carl pôˈlĭng [key], 1901–94, American chemist, b. Portland, Oreg. He was one of the few recipients of two Nobel Prizes, winning the chemistry award in 1954 and the peace prize in 1...

Brezhnev, Leonid Ilyich

(Encyclopedia)Brezhnev, Leonid Ilyich lāyōnēdˈ ĭlyēchˈ brĕzhˈnĕf [key], 1906–82, Soviet leader. He joined (1931) the Communist party and rose steadily in its hierarchy. In 1952 he became a secretary of ...

Khrushchev, Nikita Sergeyevich

(Encyclopedia)Khrushchev, Nikita Sergeyevich nyĭkēˈtə syĭrgāˈyəvĭch khro͝oschôfˈ [key], 1894–1971, Soviet Communist leader, premier of the USSR (1958–64), and first secretary of the Communist party ...

Christadelphians

(Encyclopedia)Christadelphians krĭsˌtədĕlˈfēənz [key] [Gr.,=brothers of Christ], small religious denomination founded in the United States in 1848 by John Thomas. Its members live by the Scriptures and await...