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gluon
(Encyclopedia)gluon, an elementary particle that mediates, or carries, the strong, or nuclear, force. In quantum chromodynamics (QCD), the quantum field theory of strong interactions, the interaction of quarks (to ...photographic processing
(Encyclopedia)photographic processing, set of procedures by which the latent, or invisible, image produced when a photographic film is exposed to light is made into a permanent visible image. The negative may b...Lochner, Stephan
(Encyclopedia)Lochner, Stephan shtĕfˈän lôkhˈnər [key], d. 1451, German religious painter of the school of Cologne. He combined the Gothic tradition with a new naturalism and a pure color sense. A Last Judgme...dextrin
(Encyclopedia)dextrin, any one of a number of carbohydrates having the same general formula as starch but a smaller and less complex molecule. They are polysaccharides and are produced as intermediate products in t...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 spectroscope. When a salt ...Fama, Eugene Francis
(Encyclopedia)Fama, Eugene Francis, 1939–, 1939–, U.S. economist, b. Boston, Mass., grad. Univ. of Chicago (M.B.A. 1963, Ph.D. 1964). He has taught at the Univ. of Chicago's Graduate School of Business since 19...graffito
(Encyclopedia)graffito gräf-fēˈtō [key]. 1 Method of ornamenting architectural plaster surfaces. The designs are produced by scratching a topcoat of plaster to reveal an undercoat of contrasting and deeper colo...Maxwell, James Clerk
(Encyclopedia)Maxwell, James Clerk klärk [key], 1831–79, great Scottish physicist. After a brilliant career at Edinburgh and Cambridge, where he won early recognition with mathematical papers, he was a professor...pigment
(Encyclopedia)pigment, substance that imparts color to other materials. In paint, the pigment is a powdered substance which, when mixed in the liquid vehicle, imparts color to a painted surface. The pigments used i...chameleon
(Encyclopedia)chameleon kəmēˈlēən, –mēlˈyən [key], small- to medium-sized lizard of the family Chamaeleonidae. More than 150 species are found in sub-Saharan Africa, with a few in S Europe and S Asia. The...Browse by Subject
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