Columbia Encyclopedia

Search results

500 results found

liquefied petroleum gas

(Encyclopedia)liquefied petroleum gas or LPG, mixture of gases, chiefly propane and butane, produced commercially from petroleum and stored under pressure to keep it in a liquid state. The boiling point of liquefie...

napalm

(Encyclopedia)napalm nāˈpäm [key], incendiary material developed during World War II by Harvard scientists cooperating with the U.S. army and used in bombs and flame throwers. Napalm is based on a mixture of gas...

paraffin

(Encyclopedia)paraffin, white, more-or-less translucent, odorless, tasteless, waxy solid. It melts between 47℃ and 65℃ and is insoluble in water but soluble in ether, benzene, and certain esters. Paraffin is un...

water gas

(Encyclopedia)water gas, colorless poisonous gas that burns with an intensely hot, bluish (nearly colorless) flame. The gas is a mixture of carbon monoxide and hydrogen with very small amounts of other gases, e.g.,...

Diefenbaker, John George

(Encyclopedia)Diefenbaker, John George dēˈfənbāˌkər [key], 1895–1979, Canadian political leader. Elected to Parliament (1940), he succeeded George Drew as leader of the Progressive Conservative party (1956)...

Dillon, John Forrest

(Encyclopedia)Dillon, John Forrest, 1831–1914, American jurist, b. Montgomery co., N.Y., M.D. State Univ. of Iowa, 1850. He abandoned medical practice early in his career and was admitted to the Iowa bar in 1852....

Dyson, Freeman John

(Encyclopedia)Dyson, Freeman John dīˈsən [key], 1923–2020, British-American theoretical physicist and mathematician, studied Trinity College, Cambridge (B.A., 1945) and Cornell. He did bomber operations resear...

Eaton, John Henry

(Encyclopedia)Eaton, John Henry, 1790–1856, U.S. Senator (1818–29) and Secretary of War (1829–31), b. Halifax co., N.C. After being admitted to the bar, he practiced in Franklin, Tenn., and married Myra Lewis...

Edwards, John Reid

(Encyclopedia)Edwards, John Reid (Johnny Reid Edwards), 1953–, U.S. politician, b. Seneca, S.C., grad. North Carolina State Univ. (B.A., 1974), Univ. of North Carolina (J.D., 1977). The son of a textile-mill work...

DeLorean, John Zachary

(Encyclopedia)DeLorean, John Zachary, 1925–2005, American automobile executive and entrepeneur, b. Detroit. Son of a Ford Motor Co. worker, he attended the Lawrence Institute of Technology (B.S. 1948) and later e...

Browse by Subject