Columbia Encyclopedia

Search results

500 results found

Stigler, George Joseph

(Encyclopedia)Stigler, George Joseph, 1911–91, American economist, b. Renton, Wash., Ph.D. Univ. of Chicago, 1938. A professor at Univ. of Chicago from 1958, Stigler wrote about the economics of information. He e...

taconite

(Encyclopedia)taconite, low-grade iron ore, a flintlike rock usually containing less than 30% iron. Resistant to drilling and to the extraction of its contained metal, the rock was long considered worthless. Experi...

Yakima, river, United States

(Encyclopedia)Yakima yăkˈəmô, –mə [key], river, 203 mi (327 km) long, rising in the Cascade Range, central Wash., and flowing SE past Yakima to the Columbia River near Kennewick. The U.S. Bureau of Reclamati...

castrato

(Encyclopedia)castrato kăsträˈtō [key] [Ital.,=castrated], a male singer with an artificially created soprano or alto voice, the result of castration in boyhood. The combination of the larynx of a youth and the...

Cecco d'Ascoli

(Encyclopedia)Cecco d'Ascoli chĕkˈkō däsˈkōlē [key], 1269?–1327, Italian astrologer, mathematician, poet, and physician, whose real name was Francesco degli Stabili, b. Ascoli. A teacher of astrology at se...

radio-frequency identification

(Encyclopedia)radio-frequency identification (RFID), a technology that uses radio waves to transmit data and uniquely identify an animal, person, or thing. An RFID system typically consists of a tag and a reader. T...

Himalayas

(Encyclopedia)Himalayas hĭmälˈəyəz, hĭməlāˈəz [key] [Sanskrit,=abode of snow], great Asian mountain system, extending c.1,500 mi (2,410 km) E from the Indus River in Pakistan through India, the Tibet regi...

tide

(Encyclopedia)tide, alternate and regular rise and fall of sea level in oceans and other large bodies of water. These changes are caused by the gravitational attraction of the moon and, to a lesser extent, of the s...

Nen, river, China

(Encyclopedia)Nen nônˈnē [key], river, 740 mi (1,191 km) long, rising in the Yilehuli (Ilkuri) Mts., N Heilongjiang prov., NE China, and flowing south along the east side of the Da Hinggan (Great Khingan) range ...

North Platte, river, United States

(Encyclopedia)North Platte, river, c.680 mi (1,090 km) long, rising in the Park Range, N Colo., and flowing in a great bend N through SE Wyo., then east across the plains of W central Nebr. to join the South Platte...