Search

Search results

Displaying 131 - 140

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…

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…

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…

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…

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…

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…

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 codes

(Encyclopedia) black codes, in U.S. history, series of statutes passed by the ex-Confederate states, 1865–66, dealing with the status of the newly freed slaves. They varied greatly from state to…