Columbia Encyclopedia

(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...

(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...

(Encyclopedia) German East Africa, former German colony, c.370,000 sq mi (958,300 sq km), E Africa. Dar es Salaam was the capital. German influence emerged in the area in 1884 when Carl Peters, the German explorer, ...

(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...

(Encyclopedia) centrifuge sĕnˈtrəfyo͞oj [key], device using centrifugal force to separate two or more substances of different density, e.g., two liquids or a liquid and a solid. The centrifuge consists of a fixe...

(Encyclopedia) Kunitz, Stanley Jasspon kyo͞oˈnĭts [key], 1905–2006, American poet, teacher, and editor, b. Worcester, Mass. He graduated from Harvard (B.A., 1926; M.A., 1927), worked as a journalist and editor,...

(Encyclopedia) Wyler, William, 1902–1981, American film director, producer, and writer, b. Mülhausen, Germany (now Mulhouse, France) as Willi Wilder. He came to the United States (1920) at the invitation of Carl ...

(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) price, amount of money for which a unit of goods or services is exchanged. Price is equivalent to market value and may or may not measure the intrinsic value of the goods or services to the buyer or s...

(Encyclopedia)  CE5 Bahamas, the bəhäˈməz [key], officially Commonwealth of the Bahamas, independent nation (2020 ...