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bronze, in metallurgy
(Encyclopedia)bronze, in metallurgy, alloy of copper, tin, zinc, phosphorus, and sometimes small amounts of other elements. Bronzes are harder than brasses. Most are produced by melting the copper and adding the de...boron
(Encyclopedia)boron bōrˈŏn [key] [New Gr. from borax], chemical element; symbol B; at. no. 5; interval in which at. wt. ranges 10.806–10.821; m.p. about 2,300℃; sublimation point about 2,550℃; sp. gr. 2.3 ...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℃) ...Salinas, city, United States
(Encyclopedia)Salinas səlēˈnəs [key], city (1990 pop. 108,777), seat of Monterey co., W Calif.; inc. 1874. It is the shipping and processing center of a fertile valley famous for its grain and lettuce. Fruits, ...Packard, David
(Encyclopedia)Packard, David, 1912–96, American business executive, b. Pueblo, Colo., grad. Stanford (B.A., 1934; M.S., 1939). He and classmate William R. Hewlett opened a garage-based business, which became (193...organometallic chemistry
(Encyclopedia)organometallic chemistry, the reactions and use of a class of compounds (R-M) that contain a covalent bond between carbon and metal. They are prepared either by direct reaction of the metal with an or...Hewlett, William Redington
(Encyclopedia)Hewlett, William Redington hyo͞oˈlĭt [key], 1913–2001, American engineer and business executive, b. Ann Arbor, Mich., grad. Stanford (B.S. 1934, Engineer 1939), Massachusetts Institute of Technol...Cambridge, city, England
(Encyclopedia)Cambridge, city and district, Cambridgeshire, E central England, on the River Cam. The city, set in flat country, is most famous as the site of the Univ...crystal
(Encyclopedia)CE5 Types of crystal crystal, a solid body bounded by natural plane faces that are the external expression of a regular internal arrangement of constituent atoms, molecules, or ions. The formation...Noyce, Robert Norton
(Encyclopedia)Noyce, Robert Norton nois [key], 1927–90, American engineer, inventor, and entrepeneur, b. Burlington, Iowa.; grad. Grinnell College (B.A., 1949), Massachusetts Institute of Technology (Ph.D., 1953)...Browse by Subject
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