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Ptolemaic system

(Encyclopedia)Ptolemaic system tŏlˌəmāˈĭk [key], historically the most influential of the geocentric cosmological theories, i.e., theories that placed the earth motionless at the center of the universe with a...

Eris, in astronomy

(Encyclopedia)Eris, in astronomy, the largest known dwarf planet. Eris, whose highly eccentric elliptical orbit ranges from 38 AU to 97 AU and is inclined more than 44°, is the largest known object of the Kuiper b...

Lofoten and Vesterålen

(Encyclopedia)Lofoten vĕstˈərôlən [key], two contiguous island groups (1995 est. pop. 56,700), Nordland and Troms counties, NW Norway, in the Norwegian Sea. Situated within the Arctic Circle, the islands exten...

longitude

(Encyclopedia)longitude lŏnˈjĭto͞odˌ [key], angular distance on the earth's surface measured along any latitude line such as the equator east or west of the prime meridian. A meridian of longitude is an imagin...

musk ox

(Encyclopedia)musk ox, hoofed ruminant mammal, Ovibos moschatus, found in arctic North America and Greenland. The northernmost member of the cattle family (though it is not closely related to true cattle), the musk...

Cadmus, Paul

(Encyclopedia)Cadmus, Paul, 1904–99, American painter, b. N.Y.C.; studied National Academy of Design (1919–26), Art Students' League (1928). From 1933–35 he and painter Jared French traveled to Europe, where ...

Tyson, Cecily

(Encyclopedia) Tyson, Cecily, 1924-2021, American actress, b. East Harlem, N.Y. Of Caribbean heritage, Tyson began working as a model while studying acting in the la...

Beerbohm, Sir Max

(Encyclopedia)Beerbohm, Sir Max bērˈbōm [key], 1872–1956, English essayist, caricaturist, and parodist. He contributed to the famous Yellow Book while still an undergraduate at Oxford. In 1898 he succeeded G. ...

rose window

(Encyclopedia)CE5 Rose window (Cathedral of Notre-Dame, Paris) rose window, large, stone-traceried, circular window of medieval churches. Romanesque churches of both England and the Continent had made use of th...

exploration

(Encyclopedia)exploration, travel to a part of the earth that is relatively unknown to the traveler's culture, historically often motivated by a desire for colonization, conquest, or trade. See also space explorati...