Columbia Encyclopedia

Search results

500 results found

Warner, Sylvia Townsend

(Encyclopedia)Warner, Sylvia Townsend, 1893–1978, English novelist and poet. Her first published work was poetry, The Espalier (1925), but she became more generally known with two novels of gentle fantasy, Lolly ...

Carroll, Charles

(Encyclopedia)Carroll, Charles, 1737–1832, political leader in the American Revolution, signer of the Declaration of Independence, b. Annapolis, Md. After completing his education in France and England, he return...

hydrocarbon

(Encyclopedia)hydrocarbon hīˌdrōkärˈbən [key], any organic compound composed solely of the elements hydrogen and carbon. The hydrocarbons differ both in the total number of carbon and hydrogen atoms in their ...

electronics industry

(Encyclopedia)electronics industry, the business of creating, designing, producing, and selling devices such as radios, televisions, stereos, computers, semiconductors, transistors, and integrated circuits (see ele...

plutonium

(Encyclopedia)plutonium plo͞otōˈnēəm [key], radioactive chemical element; symbol Pu; at. no. 94; mass no. of most stable isotope 244; m.p. 641℃; b.p. 3,232℃; sp. gr. 19.84 at 20℃; valence +3, +4, +5, or ...

oxygen

(Encyclopedia)oxygen, gaseous chemical element; symbol O; at. no. 8; interval in which at. wt. ranges 15.99903–15.99977; m.p. −218.4℃; b.p. −182.962℃; density 1.429 grams per liter at STP; valence −2. T...

calcium

(Encyclopedia)calcium kălˈsēəm [key] [Lat.,=lime], metallic chemical element; symbol Ca; at. no. 20; at. wt. 40.078; m.p. about 839℃; b.p. 1,484℃; sp. gr. 1.55 at 20℃; valence +2. Calcium is a malleable, ...

formula, in chemistry

(Encyclopedia)formula, in chemistry, an expression showing the chemical composition of a compound. Formulas of compounds are used in writing the equations (see chemical equations) that represent chemical reactions....

Meany, George

(Encyclopedia)Meany, George, 1894–1980, American labor leader, president of the American Federation of Labor and Congress of Industrial Organizations (AFL-CIO; 1955–79), b. New York City. A plumber, he was elec...

Maxwell, William Keepers, Jr.

(Encyclopedia)Maxwell, William Keepers, Jr., 1908–2000, American novelist, short-story writer, and editor, b. Lincoln, Ill. Educated at the Univ. of Illinois and Harvard, he began his career as a teacher, but soo...