Columbia Encyclopedia

Search results

498 results found

fingerprint

(Encyclopedia)fingerprint, an impression of the underside of the end of a finger or thumb, used for identification because the arrangement of ridges in any fingerprint is thought to be unique and permanent with eac...

cellular telephone

(Encyclopedia)cellular telephone or cellular radio, telecommunications system in which a portable or mobile radio transmitter and receiver, or “cellphone,” is linked via microwave radio frequencies to base tran...

Middletown, cities, United States

(Encyclopedia)Middletown. 1 Industrial city (1990 pop. 42,762), Middlesex co., central Conn., on the west bank of the Connecticut River; settled 1650, inc. 1784, town and city consolidated 1923. Its manufactures in...

Manchester, cities, United States

(Encyclopedia)Manchester. 1 Town (1990 pop. 51,618), Hartford co., central Conn.; settled c.1672, inc. 1823. Its sawmills and paper mills date from before the Revolutionary War. The city was also known for its prod...

Mandelbrot, Benoît B.

(Encyclopedia)Mandelbrot, Benoît B. bənwäˈ mănˈdəlbrōˌ, Fr. mäNdĕlbrôˈ [key], 1924–2010, French-American mathematician, b. Warsaw, Poland, Ph.D. Univ. of Paris, 1952. Largely self-taught and consider...

Hewlett, William Redington

(Encyclopedia)Hewlett, William Redington hyo͞oˈlĭt [key], 1913–2001, American engineer and business executive, b. Ann Arbor, Mich., grad. Stanford (B.S. 1934, Engineer 1939), Massachusetts Institute of Technol...

flextime

(Encyclopedia)flextime, system of assigning hours for work that permits employees to choose, within specified limits, the hours that they will be at their place of employment. In many companies, there is a “core ...

Paris, University of

(Encyclopedia)Paris, University of, at Paris, France; founded 12th cent., confirmed 1215 by papal bull. The most famous of its colleges was the Sorbonne, which opened in 1253 and gained academic and theological dis...

Nielsen, A. C.

(Encyclopedia)Nielsen, A. C. (Arthur Charles Nielsen) nēlˈsən [key], 1897–1980, American market researcher, b. Chicago, grad. Univ. of Wisconsin, Madison (B.S., 1918). He worked as an electrical engineer befor...

Norwalk

(Encyclopedia)Norwalk nôrˈwôkˌ [key]. 1 City (1990 pop. 94,279), Los Angeles co., S Calif.; settled in the 1850s, inc. 1957. With the arrival (1875) of the Southern Pacific RR, it became a center for the dairy ...

Browse by Subject