Columbia Encyclopedia

(Encyclopedia) brazing, method of joining metal parts using nonferrous filler metals with high melting points such as copper, silver, and aluminum alloys. Brazing differs from soldering (see solder) by using a highe...

(Encyclopedia) Ibaraki ēbäˈräkē [key], prefecture, 2,352 sq mi (6,092 sq km), central Honshu, Japan. ...

(Encyclopedia) Copiapó kōpyäpōˈ [key], city (1990 est. pop. 79,268), capital of Atacama region, N central Chile, on the Copiapó River. An industrial city at the southern edge of the Atacama Desert, Copiapó ha...

(Encyclopedia) Río Tinto, Ríotinto mēˈnäs dā [key], town (1990 pop. 5,934), Huelva prov., SW Spain, in the Sierra Morena Mts., in Andalusia. It is the center of the Río Tinto mining region, named for the riv...

(Encyclopedia) Rogers, Henry Huttleston, 1840–1909, American financier, b. Fairhaven, Mass. After he moved (1860) to Pennsylvania, he entered the oil business, experimented in the refining of petroleum, and, in pa...

(Encyclopedia) Texas City, city (1990 pop. 40,822), Galveston co., S Tex., on Galveston Bay, opposite the city of Galveston; inc. 1911. It is a railroad terminus and an industrial city and port with huge oil refiner...

(Encyclopedia) Béchar kôlôNˈ– [key], town, capital of Béchar prov., W Algeria. It is an important adm...

(Encyclopedia) Thompson, William Boyce, 1869–1930, American financier, b. Virginia City, Mont. He operated silver and copper mines in Montana and Arizona before moving to New York City. He was (1914–19) a direct...

(Encyclopedia) amalgam əmălˈgəm [key], alloy containing mercury. The alloy may be liquid or solid, depending on the proportion of mercury, although all naturally occurring amalgams, i.e., those of gold and silve...

(Encyclopedia) Falun fäˈlŭnˌ [key], city, capital of Kopparberg co., S central Sweden; chartered 1624 an...