Columbia Encyclopedia

(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...

(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 ...

(Encyclopedia) United Nations Secretaries-General ...

(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...

(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...

(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...

(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...

(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 ...

(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...

(Encyclopedia) Arrow Lakes, two expansions of the Columbia River, S British Columbia, Canada. Both lie in narrow valleys bounded by mountain ranges and are noted for their beauty. Upper Arrow Lake has an area of 88 ...