Columbia Encyclopedia

Search results

500 results found

beer, alcoholic beverage

(Encyclopedia)beer, alcoholic beverage made by brewing and fermenting cereals, especially malted barley, usually with the addition of hops as a flavoring agent and stabilizer. One of the oldest of alcoholic beverag...

solar energy

(Encyclopedia)solar energy, any form of energy radiated by the sun, including light, radio waves, and X rays, although the term usually refers to the visible light of the sun. Solar energy is needed by green plants...

Sistine Chapel

(Encyclopedia)Sistine Chapel sĭsˈtēn [key] [for Sixtus IV], private chapel of the popes in Rome, one of the principal glories of the Vatican. Built (1473) under Pope Sixtus IV, it is famous for its decorations. ...

sewing machine

(Encyclopedia)sewing machine, device that stitches cloth and other materials. An attempt at mechanical sewing was made in England (1790) with a machine having a forked, automatic needle that made a single-thread ch...

Shatt al Arab

(Encyclopedia)Shatt al Arab shät äl äˈräb [key], tidal river, 120 mi (193 km) long, formed by the confluence of the Tigris and Euphrates rivers, flowing SE to the Persian Gulf, forming part of the Iraq-Iran bo...

privacy, right of

(Encyclopedia)privacy, right of, the right to be left alone without unwarranted intrusion by government, media, or other institutions or individuals. While a consensus supporting the right to privacy has emerged (a...

Rothschild

(Encyclopedia)Rothschild rŏthˈchīld, Ger. rōtˈshĭlt [key], prominent family of European bankers. The first important member was Mayer Amschel Rothschild (1743–1812), son of a money changer in the Jewish ghe...

air, law of the

(Encyclopedia)air, law of the, in the broadest sense, all law connected with the use of the air, including radio and satellite transmissions; more commonly, it refers to laws concerning civil aviation. The developm...

quasicrystal

(Encyclopedia)quasicrystal kwāˈzīkrĭsˌtəl, kwäzˈē– [key] or quasiperiodic solid, solid body that exhibits such crystalline features as symmetry and repeating patterns of unit cells (regular arrangements ...

pear

(Encyclopedia)pear, name for a fruit tree of the genus Pyrus of the family Rosaceae (rose family) and for its fruit, a pome. The common pear (P. communis) is one of the earliest cultivated of fruit trees, both in i...