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Avebury Circle
(Encyclopedia)Avebury Circle: see under Avebury. ...meridian circle
(Encyclopedia)meridian circle: see transit instrument. ...Arctic North Slope
(Encyclopedia)Arctic North Slope or Arctic Slope, Alaska: see Alaska North Slope. ...Arctic Red River
(Encyclopedia)Arctic Red River, c.310 mi (500 km) long, rising in the Mackenzie Mts. of W Northwest Territories, Canada, and flowing generally NW to the Mackenzie River. At its mouth are a post of the Royal Canadia...squaring the circle
(Encyclopedia)squaring the circle: see geometric problems of antiquity. ...Gates of the Arctic National Park and Preserve
(Encyclopedia)Gates of the Arctic National Park and Preserve, N Alaska. Located N of the Arctic Circle, the park (7,523,898 acres/3,046,113 hectares) and adjacent preserve (948,629 acres/384,060 hectares) make up t...Knights of the Golden Circle
(Encyclopedia)Knights of the Golden Circle, secret order of Southern sympathizers in the North during the Civil War. Its members were known as Copperheads. Dr. George W. L. Bickley, a Virginian who had moved to Ohi...tundra
(Encyclopedia)tundra tŭnˈdrə [key], treeless plains of N North America and N Eurasia, lying principally along the Arctic Circle, on the coasts and islands of the Arctic Ocean, and to the north of the coniferous ...Weyprecht, Karl
(Encyclopedia)Weyprecht, Karl kärl 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 of an Austrian expedition...midnight sun
(Encyclopedia)midnight sun, phenomenon in which the sun remains visible in the sky continuously for 24 hr or longer, occurring only in the polar regions. The midnight sun is due to the fact that the plane of the ea...Browse by Subject
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