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harmonica

(Encyclopedia)harmonica. 1 The simplest of the musical instruments employing free reeds, known also as the mouth organ or French harp. It was probably invented in 1829 by Friedrich Buschmann of Berlin, who called h...

cerium

(Encyclopedia)cerium sērˈēəm [key] [from the asteroid Ceres], metallic chemical element; symbol Ce; at. no. 58; at. wt. 140.116; m.p. 799℃; b.p. 3,426℃; sp. gr. 6.77 at 25℃; valence +3 or +4. Cerium is a ...

urea

(Encyclopedia)CE5 urea yo͝oēˈə [key], organic compound that is the principal end product of nitrogen metabolism in most mammals. Urea was the first animal metabolite to be isolated in crystalline form; its c...

idealism

(Encyclopedia)idealism, the attitude that places special value on ideas and ideals as products of the mind, in comparison with the world as perceived through the senses. In art idealism is the tendency to represent...

Barth, Karl

(Encyclopedia)Barth, Karl bärt [key], 1886–1968, Swiss Protestant theologian, one of the leading thinkers of 20th-century Protestantism. He helped to found the Confessing Church and his thinking formed the theol...

Nibelungen

(Encyclopedia)Nibelungen –lētˌ [key] [song of the Nibelungen] is a long Middle High German epic by a south German poet of the early 13th cent. It includes pagan legends and traditions but is patently the produc...

Berg, Alban

(Encyclopedia)Berg, Alban älˈbän bĕrk [key], 1885–1935, Austrian composer. In his youth he taught himself music but in 1904 he became the pupil and close friend of Arnold Schoenberg. Later Berg himself taught...

Stuttgart, city, Germany

(Encyclopedia)Stuttgart shto͝otˈgärt [key], city (1994 pop. 594,406), capital of Baden-Württemberg, SW Germany, on the Neckar River. It is a major transportation point, with a large river port and an internatio...

dialectical materialism

(Encyclopedia)dialectical materialism, official philosophy of Communism, based on the writings of Karl Marx and Friedrich Engels, as elaborated by G. V. Plekhanov, V. I. Lenin, and Joseph Stalin. In theory dialecti...

Schopenhauer, Arthur

(Encyclopedia)Schopenhauer, Arthur ärˈto͝or shōˈpənhouˌər [key], 1788–1860, German philosopher, b. Danzig (now Gdansk). The bias of his own temperament and experience was germinal to the development of hi...