Columbia Encyclopedia

Search results

500 results found

econometrics

(Encyclopedia)econometrics, technique of economic analysis that expresses economic theory in terms of mathematical relationships and then tests it empirically through statistical research. Econometrics attempts to ...

Disarmament Conference

(Encyclopedia)Disarmament Conference, 1932–37, meeting for the discussion of general disarmament. The first systematic efforts to limit armaments on an international scale, in either a quantitative or a qualitati...

division of labor

(Encyclopedia)division of labor, in economics, the specialization of the functions and roles involved in production. Division of labor is closely tied with the standardization of production, the introduction and pe...

citrus fruits

(Encyclopedia)citrus fruits, widely used edible fruits of plants belonging to Citrus and related genera of the family Rutaceae (orange family). Included are the tangerine, citrange, tangelo, orange, pomelo, grapefr...

Chongqing

(Encyclopedia)Chongqing cho͞ongˈkĭngˈ [key], city and independent municipality, 592 sq mi (1,534 sq km), in SE ...

Alba, Fernando Álvarez de Toledo, duque de

(Encyclopedia)Alba or Alva, Fernando Álvarez de Toledo, duque de ălˈbə, ălˈvə, Span. both: fārnänˈdō älˈvärāth dā tōlāˈᵺō do͞oˈkā dā älˈvä [key], b. 1507 or 1508, d. 1582, Spanish gener...

Trumbull, John , American painter

(Encyclopedia)Trumbull, John, 1756–1843, American painter, b. Lebanon, Conn.; son of Gov. Jonathan Trumbull. He served in the Continental Army early in the Revolution as an aide to Washington. He resigned his com...

Tonkin

(Encyclopedia)Tonkin tŏnˈkĭnˈ, tŏngˈ– [key], historic region (c.40,000 sq mi/103,600 sq km), SE Asia, now forming the heartland of N Vietnam. The capital was Hanoi. Tonkin was bordered on the north by China...

ultrasonics

(Encyclopedia)ultrasonics, study and application of the energy of sound waves vibrating at frequencies greater than 20,000 cycles per second, i.e., beyond the range of human hearing. The application of sound energy...

Red River Settlement

(Encyclopedia)Red River Settlement, agricultural colony in present Manitoba, North Dakota, and Minnesota. It was the undertaking of Thomas Douglas, 5th earl of Selkirk. Wishing to relieve the dispossessed and impov...