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determinant

(Encyclopedia)determinant, a polynomial expression that is inherent in the entries of a square matrix. The size n of the square matrix, as determined from the number of entries in any row or column, is called the o...

Salzburg Festival

(Encyclopedia)Salzburg Festival, annual festival of music and drama held in Salzburg, Austria, for five weeks starting in late July. The festival may be considered a descendant of the Salzburg Music Festival Weeks ...

pressure

(Encyclopedia)pressure, in mechanics, ratio of the force acting on a surface to the area of the surface; it is thus distinct from the total force acting on a surface. A force can be applied to and sustained by a si...

National Gallery

(Encyclopedia)National Gallery, London, one of the permanent national art collections of Great Britain, est. 1824. The nucleus of museum was the 38-picture collection of the late English banker John Julius Angerste...

Fort Worth

(Encyclopedia)Fort Worth, city (2020 pop. 918,915), seat of Tarrant co., N Tex., on the Trinity River 30 mi (48 km) W of Dallas; settled 1843, inc. 1873. An army post...

Day, Dorothy

(Encyclopedia)Day, Dorothy, 1897–1980, American journalist and social activist, b. New York City. After studying at the Univ. of Illinois (1914–16), where she joined the Socialist party, she returned to New Yor...

sawmill

(Encyclopedia)sawmill, installation or facility in which cut logs are sawed into standard-sized boards and timbers. The saws used in such an installation are generally of three types: the circular saw, which consis...

Segal, Jr., George

(Encyclopedia) Segal, George, Jr., 1934-2021, American actor, b. New York City, Columbia Univ. (B.A., 1955). Raised in Great Neck, Long Island, Segal began his caree...

Polykleitos

(Encyclopedia)Polykleitos, Polycletus, or Polyclitus pŏlĭklīˈtəs, –klēˈ–, –klī– [key], two Greek sculptors of the school of Argos. Polykleitos, the elder, fl. c.450–c.420 b.c., was a contemporary...

Parsons, Lucy

(Encyclopedia)Parsons, Lucy, 1851–1942, American anarchist and labor activist. Although she claimed publicly to have been born of Mexican and Native American descent as Lucia Gonzalez, she was likely born in slav...