Columbia Encyclopedia

Search results

255 results found

CERN

(Encyclopedia)CERN or European Organization for Nuclear Research, nuclear and particle physics research center straddling the French-Swiss border W of Geneva, Switzerland. Established in 1952 as the provisional Eur...

tarweed

(Encyclopedia)tarweed, any of several related resinous herbs (chiefly species of Hemizonia and Madia) of the family Asteraceae (aster family), having strongly scented and sticky herbage. Most North American species...

Belgian sheepdog

(Encyclopedia)Belgian sheepdog, sometimes called Groenendael, breed of sturdy working dog developed from a wide assortment of sheepherding dogs in Belgium in the early 20th cent. It stands from 22 to 26 in. (55.9â€...

motor, electric

(Encyclopedia)CE5 Motor: In the AC motor, current fed to the conducting loop of wire causes it to rotate in the magnetic field, thus turning the shaft on which the loop is mounted. In the DC motor, the direction...

Neptune, in astronomy

(Encyclopedia)Neptune, in astronomy, 8th planet from the sun at a mean distance of about 2.8 billion mi (4.5 billion km) with an orbit lying between those of Uranus and the dwarf planet Pluto; its period of revolut...

Alegría, Claribel

(Encyclopedia)Alegría, Claribel, 1924–2018, Nicaraguan-Salvadoran poet, b. Nicaragua as Clara Isabel Alegría Vides, grad. George Washington Univ. (B.A., 1948). Her family went into exile in El Salvador when she...

corona, in astronomy

(Encyclopedia)corona, luminous envelope surrounding the sun, outside the chromosphere. Its density is less than one billionth that of the earth's atmosphere. The corona is visible only at the time of totality durin...

Niles

(Encyclopedia)Niles. 1 Village (1990 pop. 28,284), Cook co., NE Ill., a residential suburb adjacent to Chicago, on the Chicago River; settled 1832, inc. 1899. The village has a replica (half size) of the Leaning To...

Orbiting Geophysical Observatory

(Encyclopedia)Orbiting Geophysical Observatory (OGO), series of six orbiting observatories (see observatory, orbiting) launched between 1964 and 1969 by the National Aeronautics and Space Administration (NASA) to s...

Korngold, Erich Wolfgang

(Encyclopedia)Korngold, Erich Wolfgang, 1897–1957, American composer of film and concert music and opera, b. Brünn, Austria-Hungary (now Brno, Czech Republic). He began composing ballet music and operas in his t...