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calorie

(Encyclopedia)calorie, abbr. cal, unit of heat energy in the metric system. The measurement of heat is called calorimetry. The calorie, or gram calorie, is the quantity of heat required to raise the temperature of ...

Stanley, William Meredith

(Encyclopedia)Stanley, William Meredith, 1904–71, American biochemist, b. Ridgeville, Ind., Ph.D. Univ. of Illinois, 1929. He was a professor at the Rockefeller Institute for Medical Research (now Rockefeller Uni...

Takamine, Jokichi

(Encyclopedia)Takamine, Jokichi jōˈkēchē täkäˈmĭnāˌ [key], 1854–1922, Japanese chemist. He served (1881–84) as chemist in the employ of the Japanese government and (1887) organized a fertilizer manufa...

fulminate

(Encyclopedia)fulminate fŭlˈmĭnāt [key], any salt of fulminic acid, HONC, a highly unstable compound known only in solution. The term is most commonly applied to the explosive mercury (II) fulminate, also calle...

dialectic

(Encyclopedia)dialectic dīəlĕkˈtĭk [key] [Gr.,= art of conversation], in philosophy, term originally applied to the method of philosophizing by means of question and answer employed by certain ancient philosop...

Boussingault, Jean Baptiste Joseph Dieudonné

(Encyclopedia)Boussingault, Jean Baptiste Joseph Dieudonné zhäN bätēstˈ zhôzĕfˈ dyödônāˈ bo͞osăNgōˈ [key], 1802–87, French agricultural chemist. He was professor of chemistry at Lyons and later pr...

dissociation

(Encyclopedia)dissociation, in chemistry, separation of a substance into atoms or ions. Thermal dissociation occurs at high temperatures. For example, hydrogen molecules (H2) dissociate into atoms (H) at very high ...

law of simple multiple proportions

(Encyclopedia)law of simple multiple proportions, in chemistry, the statement that when two or more elements form more than one compound, the ratio of the weights of one element that combine with a given weight of ...

Change to Win Federation

(Encyclopedia)Change to Win Federation, coalition of seven labor unions representing primarily American workers. It was founded in 2005 as the Change to Win Coalition by five American Federation of Labor and Congre...

fresco

(Encyclopedia)fresco frĕsˈkō [key] [Ital.,=fresh], in its pure form the art of painting upon damp, fresh, lime plaster. In Renaissance Italy it was called buon fresco to distinguish it from fresco secco, which w...