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Polar Regions
AntarcticaThe Arcticpolar bear
(Encyclopedia) polar bear, large white bear, Ursus maritimus, formerly Thalarctos maritimus, of the coasts of arctic North America, Asia, and Europe. Polar bears usually live on drifting pack ice,…polar front
(Encyclopedia) polar front, zone of transition between polar and tropical air masses. Its average position during the winter is at about 30° lat. and during the summer at about 60° lat. In the N…polar exploration
(Encyclopedia) polar exploration: see Antarctica; Arctic, the.polar regions
(Encyclopedia) polar regions: see Antarctica; Arctic, the.Weyprecht, Karl
(Encyclopedia) Weyprecht, KarlWeyprecht, Karlkärl vīˈprĕkht [key], 1838–81, German arctic explorer. With Julius von Payer he made a voyage to Novaya Zemlya in 1871. Weyprecht and Payer were leaders…Bjørnøya
(Encyclopedia) BjørnøyaBjørnøyabyörnˈöyä [key], island, 69 sq mi (179 sq km), in the Barents Sea, c.275 mi (440 km) N of Norway; southernmost island of Svalbard. It rises to 1,759 ft (536 m). There…Churchill, town, Canada
(Encyclopedia) Churchill, town, NE Manitoba, Canada, a remote port on Hudson Bay at the mouth of the Churchill River. The northern terminus of the…Bruce, William Speirs
(Encyclopedia) Bruce, William SpeirsBruce, William Speirsspĭrz [key], 1867–1921, Scottish explorer and authority on the polar regions. He first went to the Antarctic as ship's surgeon in 1892 and…solvent
(Encyclopedia) solvent, constituent of a solution that acts as a dissolving agent. In solutions of solids or gases in a liquid, the liquid is the solvent. In all other solutions (i.e., liquids in…Trending
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