core mold casting
51metalwork — metalworker, n. /met l werrk /, n. objects made of metal. [1840 50; METAL + WORK] * * * Useful and decorative objects fashioned of various metals. The oldest technique is hammering. After с 2500 BC, casting was also used, molten metal being… …
52Rodman gun — refers to a series of American Civil War era columbiads designed by Union artilleryman Thomas Jackson Rodman [ [http://www.cwartillery.org/afammen.html Thomas Jackson Rodman] , Confederate Artillerymen, The Civil War Artillery Page. Retrieved 12… …
53Glassblowing — Glassblower Jean Pierre Canlis (right) …
54military technology — Introduction range of weapons, equipment, structures, and vehicles used specifically for the purpose of fighting. It includes the knowledge required to construct such technology, to employ it in combat, and to repair and replenish it.… …
55Goldens' Foundry — Infobox Company | company name = Goldens Foundry and Machine Co. company company type = Private foundation = Columbus, Georgia, USA (1882) location city = Columbus, Georgia location country = USA key people = George Golden Boyd, Sr., Chairman and …
56Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
57industrial glass — Introduction solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… …
58Crown (dentistry) — Intervention ICD 9 CM 23.41 MeSH …
59materials science — the study of the characteristics and uses of various materials, as glass, plastics, and metals. [1960 65] * * * Study of the properties of solid materials and how those properties are determined by the material s composition and structure, both… …
60United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
