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Theorell, Axel Hugo Teodor

(Encyclopedia)Theorell, Axel Hugo Teodor, 1903–82, Swedish biochemist, M.D. Caroline Institute, Stockholm, 1930. The results of an illness caused him to abandon his career as a physician, and he began to teach at...

Lipmann, Fritz Albert

(Encyclopedia)Lipmann, Fritz Albert, 1899–1986, American biochemist, b. Germany, grad. Univ. of Berlin (M.D., 1922; Ph.D., 1927). He emigrated to the United States in 1939 and became a citizen in 1944. In 1941 he...

chemical equilibrium

(Encyclopedia)chemical equilibrium, state of balance in which two opposing reversible chemical reactions proceed at constant equal rates with no net change in the system. For example, when hydrogen gas, H2, and iod...

patina

(Encyclopedia)patina pătˈənə [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 green, patina varie...

marcasite

(Encyclopedia)marcasite märˈkəsīt [key] or white iron pyrites, a mineral closely resembling and having the same chemical composition (FeS2) as pyrite. It differs from pyrite in that it is paler in color, become...

Wacker process

(Encyclopedia)Wacker process, an industrial process for the manufacture of ethanol by oxidizing ethene. For example, bubbling ethylene and oxygen when treated by an acidified water solution of palladium and cupric ...

paint

(Encyclopedia)paint, mixture of a pigment and a binding medium, usually thinned with a solvent to form a liquid vehicle. The term includes lacquer, portland cement paint, printing ink, calcimine, and whitewash. Pai...

Leopold and Loeb

(Encyclopedia)Leopold and Loeb lōb [key], notorious American murderers defended by Clarence Darrow in 1924. The gregarious, dominating Richard A. Loeb (1905–1936) and the shy, submissive Nathan F. Leopold, Jr. (...

jelly and jam

(Encyclopedia)jelly and jam, gelatinous, sweet food prepared by preserving fresh fruits. Since most fresh fruits contain about 80% water and from 10% to 15% sugar, they are subject to fermentation. They may be pres...

Laurel and Hardy

(Encyclopedia)Laurel and Hardy, American film comedy team. The duo consisted of Stan Laurel, 1890–1965, b. Ulverson, England, whose real name was Arthur Stanley Jefferson; and Oliver Hardy, 1892–1957, b. Atlant...