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League of Nations

(Encyclopedia)League of Nations, former international organization, established by the peace treaties that ended World War I. Like its successor, the United Nations, its purpose was the promotion of international p...

precession of the equinoxes

(Encyclopedia)CE5 Precession of the equinoxes (the points at which the earth's celestial equator intersects its ecliptic) is due to the slow rotation of the earth's axis around a perpendicular to the ecliptic. ...

ecliptic

(Encyclopedia)ecliptic ēklĭpˈtĭk, ĭ– [key], the great circle on the celestial sphere that lies in the plane of the earth's orbit (called the plane of the ecliptic). Because of the earth's yearly revolution a...

Covington

(Encyclopedia)Covington kŭvˈĭngtən [key], city (2020 pop. 40,181), seat of Kenton co., N central Ky., at the ...

elongation

(Encyclopedia)elongation, in astronomy, the angular distance between two points in the sky as measured from a third point. The elongation of a planet is usually measured as the angular distance from the sun to the ...

Guadalcanal

(Encyclopedia)Guadalcanal gwädəlkənălˈ [key], volcanic island, c.2,510 sq mi (6,500 sq km), South Pacific, ...

Frisch, Karl von

(Encyclopedia)Frisch, Karl von frĭsh [key], 1887–1982, Austrian zoologist, b. Vienna, Austria. He studied zoology with Richard von Hertwig, whom he later succeeded as professor of zoology at Munich Univ. For his...

jet stream

(Encyclopedia)jet stream, narrow, swift currents or tubes of air found at heights ranging from 7 to 8 mi (11.3–12.9 km) above the surface of the earth. They are caused by great temperature differences between adj...

Long Beach

(Encyclopedia)Long Beach. 1 City (1990 pop. 429,433), Los Angeles co., S Calif., on San Pedro Bay; est. 1882 as Willmore City, inc. 1888 as Long Beach. Having an excellent harbor, it serves as one of Los Angeles's ...

pointer

(Encyclopedia)pointer, breed of large sporting dog developed in England more than 300 years ago. It stands between 23 and 26 in. (58.4–66.4 cm) high at the shoulder and weighs between 50 and 60 lb (22.7–27.2 kg...