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erbium

(Encyclopedia)erbium ûrˈbēəm [key] [from Ytterby, a town in Sweden], metallic chemical element; symbol Er; at. no. 68; at. wt. 167.259; m.p. 1,529℃; b.p. 2,863℃; sp. gr. 9.05 at 25℃; valence +3. Erbium is...

Mannheim

(Encyclopedia)Mannheim mänˈhīm [key], city (1994 pop. 318,025), Baden-Württemberg, W central Germany, on the right bank of the Rhine River and at the mouth of the Neckar River. A bridge connects it with Ludwigs...

kindergarten

(Encyclopedia)kindergarten [Ger.,=garden of children], system of preschool education. Friedrich Froebel designed (1837) the kindergarten to provide an educational situation less formal than that of the elementary s...

Phips, Sir William

(Encyclopedia)Phips, Sir William, 1651–95, American colonial governor. Born in what is today Maine, he was a carpenter and shipbuilder in Boston and became interested in sunken treasure. On his second hunt for tr...

Pietism

(Encyclopedia)Pietism pīˈətĭzəm [key], a movement in the Lutheran Church (see Lutheranism), most influential between the latter part of the 17th cent. and the middle of the 18th. It was an effort to stir the c...

Swedish literature

(Encyclopedia)Swedish literature, literary works in the Swedish language. In the early 20th cent. the fiction of Hjalmar Söderberg presaged a renewed emphasis on restraint and realism. Ludvig Nordström, Gust...

Haydn, Franz Joseph

(Encyclopedia)Haydn, Franz Joseph fränts yōˈzĕf hīˈdən [key], 1732–1809, Austrian composer, one of the greatest masters of classical music. As a boy he sang in the choir at St. Stephen's, Vienna, where he ...

fugue

(Encyclopedia)fugue fyo͞og [key] [Ital.,=flight], in music, a form of composition in which the basic principle is imitative counterpoint of several voices. Its main elements are: (1) a theme, or subject, stated fi...

extroversion and introversion

(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...

Linnaeus, Carolus

(Encyclopedia)Linnaeus, Carolus kärōˈləs lĭnāˈəs [key], 1707–78, Swedish botanist and taxonomist, considered the founder of the binomial system of nomenclature and the originator of modern scientific clas...