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Heeger, Alan Jay

(Encyclopedia)Heeger, Alan Jay, 1936–, American physicist and chemist, b. Sioux City, Iowa, Ph.D. Univ. of California, Berkeley, 1961. Heeger has held faculty positions at the Univ. of Pennsylvania (1962–82) an...

gilding

(Encyclopedia)gilding, process of applying a thin layer of real or imitation gold to a surface. The process is employed on wood, metal, ivory, leather, paper, glass, porcelain, and fabrics and is used to embellish ...

Fürth

(Encyclopedia)Fürth fürt [key], city, Bavaria, S Germany, at the confluence of the Rednitz and Pegnitz ri...

epoxy resins

(Encyclopedia)epoxy resins, group of synthetic resins used to make plastics and adhesives. These materials are noted for their versatility, but their relatively high cost has limited their use. High resistance to c...

Mesa, city, United States

(Encyclopedia)Mesa māˈsə [key], city (1990 pop. 288,091), Maricopa co., S central Ariz., in the irrigated Salt River valley; inc. 1883. Electronic components, fabricated metals, aircraft, and machine tools are a...

lightning rod

(Encyclopedia)lightning rod, a rod made of materials, especially metals, that are good conductors of electricity, which is mounted on top of a building or other structure and attached to the ground by a cable. By v...

Brăila

(Encyclopedia)Brăila brəēˈlä [key], city, SE Romania, in Walachia, on the Danube River. The chief grai...

stibnite

(Encyclopedia)stibnite stĭbˈnīt [key], antimony sulfide, Sb2S3, a mineral, silvery gray in color, with a metallic luster. It crystallizes in the orthorhombic system. Found in many parts of the world, it is the m...

oxidation and reduction

(Encyclopedia)oxidation and reduction, complementary chemical reactions characterized by the loss or gain, respectively, of one or more electrons by an atom or molecule. Originally the term oxidation was used to re...

Fischer, Ernst Otto

(Encyclopedia)Fischer, Ernst Otto, 1918–2007, German chemist, Ph.D. Technical Univ. of Munich (TUM), 1952. Fischer was a professor at TUM (1954–57) and the Univ. of Munich (1957–64). He returned to TUM in 196...