Columbia Encyclopedia

(Encyclopedia) secession, in art, any of several associations of progressive artists, especially those in Munich, Berlin, and Vienna, who withdrew from the established academic societies or exhibitions. The artists ...

(Encyclopedia) extroversion and introversion, terms introduced into psychology by Carl Jung to identify opposite psychological types. Jung saw the activity of the extrovert directed toward the external world and tha...

(Encyclopedia) Grooms, Red (Charles Grooms), 1937–, American artist, b. Nashville, Tenn; studied Art Inst. of Chicago, Peabody College, New School for Social Research, Hans Hofmann School of Fine Arts. He moved to...

(Encyclopedia) Nobel Prizes

(Encyclopedia) Bach bäkh [key], German family of distinguished musicians who flourished from the 16th through the 18th cent., its most renowned member being Johann Sebastian Bach (see separate articleBach, Johann S...

(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...

(Encyclopedia) nucleosynthesis or nucleogenesis, in astronomy, production of all the chemical elements from the simplest element, hydrogen, by thermonuclear reactions within stars, supernovas, and in the big bang at...

(Encyclopedia) Regensburg rāˈgənsbo͝orkh [key], city (1994 pop. 125,337), Bavaria, SE Germany, a port at the confluence of the Danube (Donau) and Regen rivers. In English it is known as Ratisbon. The city is a c...

(Encyclopedia) Weyden, Roger van der vän dər vīˈdən [key], c.1400–1464, major early Flemish master, known also as Roger de la Pasture. He is believed to have studied with Robert Campin. His early works also s...

(Encyclopedia) conducting, in music, the art of unifying the efforts of a number of musicians simultaneously engaged in musical performance. In the Middle Ages and Renaissance the conductor was primarily a time beat...