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Arlington, county, United States

(Encyclopedia) Arlington, county (2020 pop. 238,643), N Va., across the Potomac River from Washington, D.C. Arlington is a residential and commercial suburb of Washington. Within its boundaries are Arlin...

Smith, Dean Edwards

(Encyclopedia) Smith, Dean Edwards, 1931–2015, American college basketball coach, b. Emporia, Kans. After playing basketball at the Univ. of Kansas (grad. 1953), Smith joined (1954) the Air Force and became an ass...

Wake Island

(Encyclopedia) Wake Island, atoll with three islets (Wake, Wilkes, and Peale), 3 sq mi (7.8 sq km), central Pacific, between Hawaii and Guam. It is a U.S. military base and scientific research center under the juris...

Whittle, Sir Frank

(Encyclopedia) Whittle, Sir Frank, 1907–96, English aeronautical engineer. Whittle was one of the first persons to associate the gas turbine with jet propulsion. Previously the gas turbine had been regarded as a m...

air mass

(Encyclopedia) air mass, large body of air within the earth's atmosphere in which temperature and humidity, although varying at different heights, remain similar throughout the body at any one height. Air masses for...

Spokane, city, United States

(Encyclopedia) Spokane spōkănˈ [key], city (1990 pop. 177,196), seat of Spokane co., E Wash., at the spectacular falls of the Spokane River; inc. 1881. It is a port of entry and the commercial, transportation, an...

Charleston, cities, United States

(Encyclopedia) Charleston. 1 City (2020 pop. 17,286), seat of Coles co., E Ill.; inc. 1835. Charleston is an industrial, rail, and trade center located in an ...

electromotive force

(Encyclopedia) electromotive force, abbr. emf, difference in electric potential, or voltage, between the terminals of a source of electricity, e.g., a battery from which no current is being drawn. When current is dr...

plein-air

(Encyclopedia) plein-air plān-ârˈ, Fr. plĕn-ĕrˈ [key] [Fr.,=open-air], term used for paintings or drawings made directly from nature and infused with a feeling of the open air. Painting outdoors is a relativel...

Johnston Atoll

(Encyclopedia) Johnston Atoll, atoll, 2.8 sq mi (7.25 sq km), central Pacific, c.700 nautical mi (1,300 km) SW of Honolulu, central Pacific, an uninc. territory of the United States. It consists of four islands and ...
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