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closed shop and open shop

(Encyclopedia)closed shop and open shop. The term “closed shop” is used to signify an establishment employing only members of a labor union. The union shop, a closely allied term, indicates a company where empl...

False Decretals

(Encyclopedia)False Decretals dĭkrēˈtəlz [key], collection of documents, partly spurious, treating of canon law. It was composed between 847 and 852 probably in France, either at Reims or in the province of Tou...

Heisenberg, Werner

(Encyclopedia)Heisenberg, Werner vĕrˈnər hīˈzənbĕrk [key], 1901–76, German physicist. One of the founders of the quantum theory, he is best known for his uncertainty principle, or indeterminacy principle, ...

Know-Nothing movement

(Encyclopedia)Know-Nothing movement, in U.S. history. The increasing rate of immigration in the 1840s encouraged nativism. In Eastern cities where Roman Catholic immigrants especially had concentrated and were welc...

stratosphere

(Encyclopedia)stratosphere strătˈəsfēr [key], second lowest layer of the earth's atmosphere. The level from which it extends outward varies with latitude; it begins c.51⁄2 mi (9 km) above the poles, c.6 or 7 ...

tribune

(Encyclopedia)tribune, in ancient Rome, one of various officers. The history of the office of tribune is closely associated with the struggle of the plebs against the patrician class to achieve a more equitable pos...

sanction

(Encyclopedia)sanction, in law and ethics, any inducement to individuals or groups to follow or refrain from following a particular course of conduct. All societies impose sanctions on their members in order to enc...

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 ...

Calvinism

(Encyclopedia)Calvinism, term used in several different senses. It may indicate the teachings expressed by John Calvin himself; it may be extended to include all that developed from his doctrine and practice in Pro...

Pollock, Jackson

(Encyclopedia)Pollock, Jackson, 1912–56, American painter, b. Cody, Wyo. He studied (1929–31) in New York City, mainly under Thomas Hart Benton, but he was more strongly influenced by A. P. Ryder and the Mexica...