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Lie, Trygve Halvdan

(Encyclopedia)Lie, Trygve Halvdan trügˈvə hälvˈdän lē [key], 1896–1968, Norwegian statesman, first secretary-general of the United Nations. A lawyer and Labor party leader, he was Norwegian minister of jus...

Haavelmo, Trygve

(Encyclopedia)Haavelmo, Trygve trügˈvə hävelmō [key], 1911–99, Norwegian economist. In the 1940s, he was a pioneer in the field of econometrics, using mathematics and statistics in the formation of economic ...

lie detector

(Encyclopedia)lie detector, instrument designed to record bodily changes resulting from the telling of a lie. Cesare Lombroso, in 1895, was the first to utilize such an instrument, but it was not until 1914 and 191...

Lie, Marius Sophus

(Encyclopedia)Lie, Marius Sophus mäˈrēo͝os sōˈfo͝os lē [key], 1842–99, Norwegian mathematician. He is noted for his contributions to the theories of differential equations and continuous transformation gr...

Lie, Jonas Lauritz Idemil

(Encyclopedia)Lie, Jonas Lauritz Idemil yōˈnäs louˈrĭts ēˈdəmēl lē [key], 1833–1908, Norwegian novelist, poet, and playwright. His writing deals with family life in diverse settings. The Pilot and His W...

Hammarskjöld, Dag

(Encyclopedia)Hammarskjöld, Dag däg hämˈərshōldˌ, Swed. hämˈärshöldˈ [key], 1905–61, Swedish statesman, secretary-general of the United Nations (1953–61). He attended the universities of Uppsala and...

plane

(Encyclopedia)plane, in mathematics, flat surface of infinite extent but no thickness. An example of a plane, or more exactly of a bounded portion of a plane, is the surface forming one face, or side, of a cube. A ...

celestial horizon

(Encyclopedia)celestial horizon, one axis of the altazimuth coordinate system. It is the great circle on the celestial sphere midway between the observer's zenith and nadir; it divides the celestial sphere into two...

Ionian Sea

(Encyclopedia)Ionian Sea, part of the Mediterranean Sea, S Europe, between Greece and S Italy. It is connected with the Adriatic Sea by the Strait of Otranto. The Gulf of Taranto and the Gulf of Corinth are its chi...

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