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Penticton

(Encyclopedia)Penticton, city (1991 pop. 27,258), S British Columbia, Canada, located where the Okanagan River flows into Okanagan Lake. It is a service and trade center for the Okanagan valley, a resort and fruit-...

pulsar

(Encyclopedia)pulsar, in astronomy, a neutron star that emits brief, sharp pulses of energy instead of the steady radiation associated with other natural sources. The study of pulsars began when Antony Hewish and h...

electromagnetic radiation

(Encyclopedia)CE5 Electromagnetic spectrum electromagnetic radiation, energy radiated in the form of a wave as a result of the motion of electric charges. A moving charge gives rise to a magnetic field, and if ...

communications industry

(Encyclopedia)communications industry, broadly defined, the business of conveying information. Although communication by means of symbols and gestures dates to the beginning of human history, the term generally ref...

Hilversum

(Encyclopedia)Hilversum hĭlˈvərsəm [key], city, North Holland prov., central Netherlands. It is the center of ...

Gennevilliers

(Encyclopedia)Gennevilliers zhĕnvēyāˈ [key], town, Hauts-de-Seine dept., N central France, on the right bank of ...

Dohnányi, Ernst von

(Encyclopedia)Dohnányi, Ernst von ĕrˈnö [key], 1877–1960, Hungarian composer, pianist, and conductor. He studied at the Royal Academy, Budapest (1894–97), and later became its director. As a pianist he tour...

Federal Communications Commission

(Encyclopedia)Federal Communications Commission (FCC), independent executive agency of the U.S. government established in 1934 to regulate interstate and foreign communications in the public interest. The FCC is co...

Emery, Walter Ralph

(Encyclopedia) Emery, Walter Ralph, 1933-2022, American country music broadcaster, b. McEwen, Tn. Commonly recognized as the "Dick Clark" of country radio, Emery helped legitimatize and popularize the genre over ...

reconnaissance satellite

(Encyclopedia)reconnaissance satellite, artificial satellite launched by a country to provide intelligence information on the military activities of foreign countries. There are four major types. Early-warning sate...