Columbia Encyclopedia

(Encyclopedia) Stoddart, James Fraser, 1942–, British chemist, Ph.D. Univ. of Edinburgh, 1966. He began his career at Sheffield Univ., England, in 1970, then moved to Birmingham Univ., England, in 1990, the Univ. ...

(Encyclopedia) pyroclastic flow, turbulent, fluidized mixture of rock, volcanic ash, and hot gas that moves like an avalanche away from a volcanic eruption. A pyroclastic flow may contain a mix of rock fragments ran...

(Encyclopedia) Beeckman, Isaac bākˈmən [key], 1588–1637, Dutch physicist. An early proponent of mathematical reasoning and experimental verification in natural philosophy, he contributed to the modern conceptio...

(Encyclopedia) Vienne, town (1990 pop. 30,386), Isère dept., SE France, on the Rhône River. It is a farm trade center with textile, metallurgical, and footwear industries. The capital of the Allobroges, Vienne (th...

(Encyclopedia) Beauvais bōvāˈ [key], town, capital of Oise dept., N France. Tractors, ceramic tiles, text...

(Encyclopedia) Balthus bôlˈthəs, bălˈ– [key], 1908–2001, Polish-French painter, b. Paris as Count Balthasar Klossowski de Rola. Balthus is sometimes regarded as one of the most important figurative painters...

(Encyclopedia) San Francisco Symphony, orchestra founded 1911. It has performed at the Louise M. Davies Symphony Hall since 1980. Henry Hadley, the original music director, was followed by Alfred Hertz (1915–30), ...

(Encyclopedia) Parti Québécois pärtē kēbĕkwäˈ [key] (PQ), provincial political party committed to the independence of Quebec. Founded in 1968, it soon became a force in provincial elections. In 1976, led by ...

(Encyclopedia) Percier, Charles shärl pĕrsyāˈ [key], 1764–1838, French architect. He won (1786) the Grand Prix de Rome, and in 1794 he became associated with Pierre François Léonard Fontaine. Napoleon appoin...

(Encyclopedia) piezoelectric effect pīēˌzōĭlĕkˈtrĭk [key], voltage produced between surfaces of a solid dielectric (nonconducting substance) when a mechanical stress is applied to it. A small current may be ...