Columbia Encyclopedia

Search results

500 results found

De Leon, Daniel

(Encyclopedia)De Leon, Daniel dē lēˈŏn [key], 1852–1914, American socialist leader. Born on the island of Curaçao of Spanish-American parents, he was educated in Germany and the Netherlands before going (187...

Foss, Lukas

(Encyclopedia)Foss, Lukas fôs [key], 1922–2009, American composer, pianist, and conductor, b. Berlin as Lukas Fuchs. He came to the United States in 1937, attended the Curtis Institute in Philadelphia, studied c...

Harley, Robert, 1st earl of Oxford

(Encyclopedia)Harley, Robert, 1st earl of Oxford, 1661–1724, English statesman and bibliophile. His career illustrates the power of personal connections and intrigue in the politics of his day. When he entered (1...

Taylor, Jeremy

(Encyclopedia)Taylor, Jeremy, 1613–67, English bishop and theological and devotional writer. He was distinguished as a preacher and as the author of some of the most noted religious works in English. After comple...

Thorfinn Karlsefni

(Encyclopedia)Thorfinn Karlsefni thôrˈfĭn kärlˈsĕvnē [key], fl. 1002–15, Norse leader of an attempt to colonize North America. He appeared in Greenland in 1002 and married Gudrid, widow of one of the sons ...

water

(Encyclopedia)CE5 A. Water molecule (black circles represent valence-shell electrons) B. Structure of ice: Each oxygen atom (white circles) is bonded to four other oxygen atoms by hydrogen bonds, the hydrogen at...

Livingston

(Encyclopedia)Livingston, family of American statesmen, diplomats, and jurists. Edward Livingston,Edward Livingston, 1764–1836, b. Livingston Manor, was the son of Robert R. Livingston (1718–75) and brother o...

electromagnet

(Encyclopedia)CE5 Electromagnet electromagnet, device in which magnetism is produced by an electric current. Any electric current produces a magnetic field, but the field near an ordinary straight conductor is ...

allergy

(Encyclopedia)allergy, hypersensitive reaction of the body tissues of certain individuals to certain substances that, in similar amounts and circumstances, are innocuous to other persons. Allergens, or allergy-caus...

fuel cell

(Encyclopedia)fuel cell, electric cell in which the chemical energy from the oxidation of a gas fuel is converted directly to electrical energy in a continuous process (see oxidation and reduction). The efficiency ...