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Lookout, Cape

(Encyclopedia)Lookout, Cape, point of a sandy reef (Core Banks), off E N.C., SW of Cape Hatteras. The reef guards the port entrance to Beaufort and Morehead City. A lighthouse on the point was built in 1859 and is ...

Antarctic Circle

(Encyclopedia)Antarctic Circle, imaginary circle on the surface of the earth at 661⁄2°S lat., i.e., 231⁄2° north of the South Pole. It marks the southernmost point at which the sun can be seen at the winter s...

Pelotas

(Encyclopedia)Pelotas pəlôˈtəsh [key], city (1991 pop. 291,100), Rio Grande do Sul state, S Brazil, an inland port on the São Gonçalo canal. It is a major export point for the stock-raising region of S Rio Gr...

Arctic Circle

(Encyclopedia)Arctic Circle, imaginary circle on the surface of the earth at 661⁄2°N latitude, i.e., 231⁄2° south of the North Pole. It marks the northernmost point at which the sun can be seen at the winter ...

Campina Grande

(Encyclopedia)Campina Grande kəmpēˈnä gränˈdĭ [key], city, Paraíba state, NE Brazil, on the...

lubrication

(Encyclopedia)lubrication, introduction of a substance between the contact surfaces of moving parts to reduce friction and to dissipate heat. A lubricant may be oil, grease, graphite, or any substance—gas, liquid...

circle

(Encyclopedia)CE5 Circle circle, closed plane curve consisting of all points at a given distance from some fixed point, called the center. A circle is a conic section cut by a plane perpendicular to the axis of...

United States Military Academy

(Encyclopedia)United States Military Academy, at West Point, N.Y.; for training young men and women to be officers in the U.S. army; founded and opened in 1802. The original act provided that the Corps of Engineers...

altazimuth coordinate system

(Encyclopedia)altazimuth coordinate system ăltăzˈəməth [key] or horizon coordinate system, astronomical coordinate system in which the position of a body on the celestial sphere is described relative to an obs...

antifreeze

(Encyclopedia)antifreeze, substance added to a solvent to lower its freezing point. The solution formed is called an antifreeze mixture. Antifreeze is typically added to water in the cooling system of an internal-c...