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Sheffield plate
(Encyclopedia) Sheffield plate, metalware of copper, silver-plated by fusion, originated at Sheffield, England. This process of plating was discovered c.1742 by a Sheffield cutler, Thomas Boulsover,…flame test
(Encyclopedia) flame test, test used in the identification of certain metals. It is based on the observation that light emitted by any element gives a unique spectrum when passed through a…cupric sulfate
(Encyclopedia) cupric sulfatecupric sulfatek&oomacr;ˈprĭk sŭlˈfāt, ky&oomacr;ˈ– [key] or copper (II) sulfate, chemical compound, CuSO4, taking the form of white rhombohedral crystals or…Townsville
(Encyclopedia) Townsville, city (1991 pop. 186,757), NE Queensland, Australia, on Cleveland Bay. It is a major port. Wool, hides, meat, copper, and sugar are the chief exports. Copper and sugar…patina
(Encyclopedia) patinapatinapătˈənə [key], coating of carbonate of copper on articles of copper or bronze, formed after long exposure to a moist atmosphere or burial in the earth. Although commonly…Leninogor
(Encyclopedia) LeninogorLeninogorlənēnˈəgôrˌ [key], formerly LeninogorskLeninogorsklyĕˌnyĭnəgôrskˈ [key], city (1989 pop. 68,706), NE Kazakhstan, in the Altai Mts. It is a mining center in an area…Anaconda, city, United States
(Encyclopedia) Anaconda Anaconda ănəkŏnˈdə [key], city (2020 pop. 9,162), seat of Deer Lodge co., SW Mont.; inc. 1887. Marcus Daly chose this place (1883) for the Anaconda Copper…Wrangell Mountains
(Encyclopedia) Wrangell Mountains, S Alaska, extending c.100 mi (160 km) SE from the Copper River to the Canadian border, where they meet the St. Elias Mts. Mt. Blackburn (16,523 ft/5,036 m) is the…shape memory
(Encyclopedia) shape memory, property possessed by certain alloys that allows them to return, when heated, to their original shape after having been deformed. This effect results because, as the…Douglas, cities, United States
(Encyclopedia) Douglas. 1 City (2020 pop. 16,534), Cochise co., SE Ariz., at the Mexican border; inc. 1905. The mining and smelting of copper have been…Trending
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