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Wheeling

(Encyclopedia)Wheeling. 1 Village (1990 pop. 29,911), Cook co., NE Ill., a suburb of Chicago; founded c.1830, inc. 1894. Machinery, computer supplies, metal and paper products, security devices, insulation, and che...

etching

(Encyclopedia)etching, the art of engraving with acid on metal; also the print taken from the metal plate so engraved. In hard-ground etching the plate, usually of copper or zinc, is given a thin coating or ground ...

sodium

(Encyclopedia)sodium, a metallic chemical element; symbol Na [Lat. natrium]; at. no. 11; at. wt. 22.98977; m.p. 97.81℃; b.p. 892.9℃; sp. gr. 0.971 at 20℃; valence +1. Sodium is a soft, silver-white metal. Ext...

copper, chemical element

(Encyclopedia)copper, metallic chemical element; symbol Cu [Lat. cuprum=copper]; at. no. 29; at. wt. 63.546; m.p. 1,083.4℃; b.p. 2,567℃; sp. gr. 8.96 at 20℃; valence +1 or +2. Copper and some of its alloys ha...

Lebanon, city, United States

(Encyclopedia)Lebanon, city (1990 pop. 24,800), seat of Lebanon co., SE Pa., in the Pennsylvania Dutch farm country; founded 1753, inc. as a city 1868. Its manufactures include fabricated metal products, lumber, ap...

Meudon

(Encyclopedia)Meudon mödôNˈ [key], town (1990 pop. 46,173), Hauts-de-Seine dept., N central France, a suburb SW of Paris. Metal products, automobile bodies, and explosives are the chief manufactures. The astroph...

Moroni

(Encyclopedia)Moroni mōrōˈnē [key], town (1990 pop. 23,432), capital of Comoros, on Njazidja (formerly Grande Comore) island, at the northern end of the Mozambique Channel, an arm of the Indian Ocean. Moroni is...

Logroño

(Encyclopedia)Logroño lōgrōˈnyō [key], city (1990 pop. 121,911), capital of La Rioja autonomous community and prov., N Spain, in La Rioja, on the Ebro River. It is a farm-processing center noted for its Rioja ...

Mandan, city, United States

(Encyclopedia)Mandan mănˈdăn, –dən [key], city (1990 pop. 15,177), seat of Morton co., S N.Dak., on the Missouri River opposite Bismarck; inc. 1881. A railroad division point, it is the distribution center fo...

Meknès

(Encyclopedia)Meknès mĕknĕsˈ [key], city (1994 pop. 443,214), N central Morocco. It has a noted carpet-weaving industry. There are also woolen mills, cement and metal works, oil distilleries, and food-processin...