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National Commission on Terrorist Attacks upon the United States

(Encyclopedia)National Commission on Terrorist Attacks upon the United States: see under 9/11. ...

communication

(Encyclopedia)communication, transfer of information, such as thoughts and messages, as contrasted with transportation, the transfer of goods and persons (see information theory). The basic forms of communication a...

Energy, United States Department of

(Encyclopedia)Energy, United States Department of, executive department of the federal government responsible for coordinating national activities relating to the production, regulation, marketing, and conservation...

Spühler, Willy

(Encyclopedia)Spühler, Willy vĭlˈē shpüˈlər [key], 1902–90, Swiss political leader and economist. A Social Democrat, He held several government economic posts and served (1938–59) in the federal assembly...

pressure group

(Encyclopedia)pressure group, body, organized or unorganized, that actively seeks to promote its particular interests within a society by exerting pressure on public officials and agencies. Pressure groups direct t...

cable television

(Encyclopedia)cable television, the transmission of televised images to viewers by means of coaxial cables. Cable systems receive the television signal, which is sent out over cables to individual subscribers, by a...

Norton, Eleanor Holmes

(Encyclopedia)Norton, Eleanor Holmes, 1937–, African-American lawyer and government official. As an attorney (1965–70) for the American Civil Liberties Union, she specialized in First Amendment cases. She later...

audiovisual education

(Encyclopedia)audiovisual education, educational instruction by means of materials that use the senses of sight and hearing to stimulate and enrich learning experiences. The successful use of motion pictures and ot...

radio frequency

(Encyclopedia)radio frequency, range of electromagnetic waves with a frequency or wavelength suitable for communication uses. Some of these waves serve as carriers of the lower-frequency audio waves; others are mod...

utility, public

(Encyclopedia)utility, public, industry required by law to render adequate service in its field at reasonable prices to all who apply for it. Public utilities frequently operate as monopolies in their market. In th...