Columbia Encyclopedia

(Encyclopedia) color index, in astronomy, difference in an object's brightness as recorded between any two well-defined bands of the electromagnetic spectrum by using optical filters of different colors. If blue and...

(Encyclopedia) Red Deer, city (1991 pop. 58,134), S central Alta., Canada, on the Red Deer River. It developed as a trade and service center for a region of dairying and mixed farming. The discovery of oil and natur...

(Encyclopedia) Red Guards, in Chinese history, politically active students of the Cultural Revolution (1966–69), who organized units to carry out Mao Zedong's aim of rerevolutionizing Chinese society. As their num...

(Encyclopedia) Red Bank, borough (1990 pop. 10,636), Monmouth co., E N.J., on the Navesink estuary, in a fertile farm area; inc. 1908. Settled in the late 17th cent, it was an early shipping center and has become a ...

(Encyclopedia) Grange, Red (Harold Edward Grange), 1903–91, American football player, b. Forksville, Pa. Grange was All-America halfback at the Univ. of Illinois (1923–25). After a spectacular college career in ...

(Encyclopedia) Red Rock chicken, the only chicken still popular to any large extent in the United States today for both meat and eggs. It resulted from a cross between a Rhode Island Red male and a Plymouth Rock fem...

(Encyclopedia) Fetterman, William Judd, 1833?–1866, American army officer. In 1861 he enlisted in the Union army from Delaware; he served throughout the Civil War and was twice brevetted for gallant conduct. After...

(Encyclopedia) Red River Settlement, agricultural colony in present Manitoba, North Dakota, and Minnesota. It was the undertaking of Thomas Douglas, 5th earl of Selkirk. Wishing to relieve the dispossessed and impov...

(Encyclopedia) red blood cell: see blood.

(Encyclopedia) Red Angus cattle: see Angus cattle. ...