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Weatherford

(Encyclopedia)Weatherford, city (1990 pop. 14,804), seat of Parker co., N central Tex.; inc. 1856. It is in a fertile region that yields horticultural crops, peanuts, pecan, and peaches; cattle and horses are raise...

West Mifflin

(Encyclopedia)West Mifflin, borough (1990 pop. 23,644), Allegheny co., SW Pa., a suburb SE of Pittsburgh, on the Monongahela River. Transportation equipment, fabricated metal products, and asphalt are produced in W...

Lansing

(Encyclopedia)Lansing. 1 Village (1990 pop. 28,086), Cook co., NE Ill., a suburb of Chicago, near the Ind. line; inc. 1893. Among the city's industries are meatpacking, food processing, and the manufacture of metal...

firebrick

(Encyclopedia)firebrick, brick that can withstand high temperatures, used to line flues, stacks, furnaces, and fireplaces. In general, such bricks have high melting points that range from about 2,800℉ (1.540℃) ...

vanadium

(Encyclopedia)vanadium vənāˈdēəm [key], metallic chemical element; symbol V; at. no. 23; at. wt. 50.9415; m.p. about 1,890℃; b.p. 3,380℃; sp. gr. about 6 at 20℃; valence +2, +3, +4, or +5. Vanadium is a ...

oxide

(Encyclopedia)oxide, chemical compound containing oxygen and one other chemical element. Oxides are widely and abundantly distributed in nature. Water is the oxide of hydrogen. Silicon dioxide is the major componen...

Henderson

(Encyclopedia)Henderson. 1 City (2020 pop. 27,801), seat of Henderson co., NW Ky., on the Ohio River, in an oil, coal, tobacco, corn, and livestock area; founded ...

magnesium

(Encyclopedia)magnesium măgnēˈzēəm, –zhəm [key], metallic chemical element; symbol Mg; at. no. 12; at. wt. 24.3050; m.p. about 648.8℃; b.p. about 1,090℃; sp. gr. 1.738 at 20℃; valence +2. In 1808, Sir...

potassium

(Encyclopedia)potassium pətăsˈēəm [key], a metallic chemical element; symbol K [Lat. kalium=alkali]; at. no. 19; at. wt. 39.0983; m.p. 63.25℃; b.p. 760℃; sp. gr. .862 at 20℃; valence +1. Potassium is a s...

Menomonee Falls

(Encyclopedia)Menomonee Falls mənŏmˈənē [key], village (1990 pop. 26,840), Waukesha co., SE Wis., on the Menominee River; inc. 1892. Wire, metal, paper, concrete, plumbing fixtures, furniture, fiberglass produ...