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Sioux City

(Encyclopedia)Sioux City, city (1990 pop. 80,505), seat of Woodbury co., NW Iowa, at the junction of the Big Sioux and Floyd rivers with the Missouri; inc. 1857. It is a shipping, wholesale trade, and industrial ce...

Székesfehérvár

(Encyclopedia)Székesfehérvár sāˈkĕshfĕˌhârvär [key], Ger. Stuhlweissenburg, city (1991 est. pop. 109,100), W central Hungary. It is a county administrative center, a road and rail junction, and an industr...

Ceanannus Mór

(Encyclopedia)Ceanannus Mór sēˌənănˈəs môr [key] or Kells, town , Co. Meath, NE Republic of Ireland, on ...

Black Monday

(Encyclopedia)Black Monday, Oct. 19, 1987, in U.S. history, day of financial panic. The Dow Jones Average fell 508.32 points, a drop of 22.6%, the largest since 1914. The point decline as well as the volume, 604.33...

Ussachevsky, Vladimir

(Encyclopedia)Ussachevsky, Vladimir vlədyēˈmĭr o͞osəchĕfˈskē [key], 1911–90, Russian-American composer, b. Manchuria. Ussachevsky emigrated to the United States in 1931 and studied at the Eastman School....

compact disc

(Encyclopedia)compact disc (CD), a small plastic disc used for the storage of digital data. As originally developed for audio systems, the sound signal is sampled at a rate of 44,100 times a second, then each sampl...

automation

(Encyclopedia)automation, automatic operation and control of machinery or processes by devices, such as robots that can make and execute decisions without human intervention. The principal feature of such devices i...

World Wide Web

(Encyclopedia)World Wide Web (WWW or W3), collection of globally distributed text and multimedia documents and files and other network services linked in such a way as to create an immense electronic library from w...

meteorology

(Encyclopedia)meteorology, branch of science that deals with the atmosphere of a planet, particularly that of the earth, the most important application of which is the analysis and prediction of weather. Individual...

electronic music

(Encyclopedia)electronic music or electro-acoustic music, term for compositions that utilize the capacities of electronic media for creating and altering sounds. Initially, a distinction must be made between the te...