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sublimation, in chemistry

(Encyclopedia)sublimation sŭblĭmāˈshən [key], change of a solid substance directly to a vapor without first passing through the liquid state. The term is also used to describe the reverse process of the gas ch...

Erlenmeyer, Richard A. C. E.

(Encyclopedia)Erlenmeyer, Richard A. C. E. ĕrˈlənmīˌər [key], 1825–1909, German chemist. He studied at Giessen under Justus von Liebig and at Heidelberg under Friedrich Kekulé, both German chemists. Erlenm...

compound

(Encyclopedia)compound, in chemistry, a substance composed of atoms of two or more elements in chemical combination, occurring in a fixed, definite proportion and arranged in a fixed, definite structure. A compound...

Formulas for the Volumes of Some Common Solids (table)

(Encyclopedia)Formulas for the Volumes of Some Common Solids 1 Abbreviations: B = area of base; h = height; r = radius; l = length; w = width. ...

Ecclestone, Bernie

(Encyclopedia)Ecclestone, Bernie (Bernard Charles Ecclestone), 1930–, English automobile racing executive. After a short career racing Formula Three cars in the late 1940s and early 1950s, he managed Formula One ...

Merton, Robert Carhart

(Encyclopedia)Merton, Robert Carhart, 1944–, American economist, b. New York City, Ph.D. Massachusetts Institute of Technology, 1970. He has taught at MIT (1970–88, 2010–) and Harvard (1988–2010). Merton in...

charm

(Encyclopedia)charm, magical formula or incantation, spoken or sung, for the purpose of securing blessing, good fortune, or immunity from evil. It presupposes a belief in demons or malignant spirits. The formula wa...

Hamilton, Lewis

(Encyclopedia)Hamilton, Lewis (Sir Lewis Carl Davidson Hamilton), 1985–, British race car driver. After winning several European and world karting championships, he...

concentration

(Encyclopedia)concentration, in chemistry, measure of the relative proportions of two or more quantities in a mixture. The concentration of a solute is very important in studying chemical reactions because it deter...

Scholes, Myron Samuel

(Encyclopedia)Scholes, Myron Samuel, 1941–, Canadian-American economist, b. Timmins, Ont., Ph.D. Univ. of Chicago, 1969. He was a professor at the Univ. of Chicago (1968–83) and at Stanford (emeritus since 1996...