Columbia Encyclopedia

Search results

500 results found

Rockford

(Encyclopedia)Rockford, industrial city (1990 pop. 139,426), seat of Winnebago co., N Ill., on the Rock River near the Wis. line; inc. 1839 with the merger of two settlements on opposite sides of the river. It is t...

South African War

(Encyclopedia)South African War or Boer War, 1899–1902, war of the South African Republic (Transvaal) and the Orange Free State against Great Britain. The Boers accepted British sovereignty in exchange for a ...

bone black

(Encyclopedia)bone black, solid black material, largely carbon, produced by heating animal bones to high temperatures in the absence of air so as to drive off volatile substances. Finely divided bone black is usefu...

Black, Hugh

(Encyclopedia)Black, Hugh, 1868–1953, Scottish-American theologian and author. After serving as a pastor in Paisley and Edinburgh, he emigrated to the United States in 1906 to begin a professorship of practical t...

carbon black

(Encyclopedia)carbon black, mixture of partially burned hydrocarbons. Carbon black is produced by partial combustion of natural gas. It is used as a black pigment for inks and paints, and is used in large amounts b...

Black, James

(Encyclopedia)Black, James, 1823–93, American temperance leader. A Pennsylvania lawyer, he was active in state and national temperance work. His plan for a National Publication House was adopted by the National T...

Black, Joseph

(Encyclopedia)Black, Joseph, 1728–99, Scottish chemist and physician, b. France. He was professor of chemistry at Glasgow (1756–66) and from 1766 at Edinburgh. He is best known for his theories of latent heat a...

Black, Max

(Encyclopedia)Black, Max, 1909–88, American analytical philosopher, b. Baku, Russia (now Bakı, Azerbaijan), grad. Cambridge, Ph.D. Univ. of London, 1939. He taught at the Univ. of Illinois (1940–46) before goi...

Black Belt

(Encyclopedia)Black Belt, term applied to several areas of Mississippi and Alabama, the heart of the Old South, which are characterized by black soil and excellent cotton-growing conditions. The Black Belt area was...

Black Country

(Encyclopedia)Black Country, highly industrialized region, historically mostly in Staffordshire but partly in Worcestershire and Warwickshire, W central England. It includes Dudley, Rowley Regis (see Warley), Tipto...