Columbia Encyclopedia

(Encyclopedia) stereophonic sound, sound recorded simultaneously through two or more electronic channels. For live recordings, microphones are placed in different positions relative to the sound source. The recorded...

(Encyclopedia) Comsat: see Communications Satellite Corporation; communications satellite. ...

(Encyclopedia) Inmarsat: see Communications Satellite Corporation; communications satellite. ...

(Encyclopedia) Intelsat: see Communications Satellite Corporation; communications satellite. ...

(Encyclopedia)  CE5 French horn French horn, brass wind musical instrument. Fundamentally a metal tube of narrow conical bore, it is curved into circles because of its great length. The horn ends in a wide flare....

(Encyclopedia) Pierce, John, 1910–2002, American electrical engineer, b. Des Moines, Iowa, grad. California Institute of Technology (Ph.D. 1936). Pierce worked at the Bell Telephone Laboratories, where he proposed...

(Encyclopedia) mixer, either of two electronic devices in which two or more signals are combined. In the type of mixer used in radio receivers, radar receivers, and similar systems, a signal is translated upward or ...

(Encyclopedia) McLuhan, Marshall (Herbert Marshall McLuhan), 1911–80, Canadian communications theorist and educator, b. Edmonton, Alta. He taught at the Univ. of Toronto (1946–80) and at other institutions of hi...

(Encyclopedia) Burleson, Albert Sidney bûrˈləsən [key], 1863–1937, U.S. Postmaster General (1913–21), b. San Marcos, Tex.; grandson of Edward Burleson. He was a lawyer of Austin, Tex., and a member of the U....

(Encyclopedia) network, in computing, two or more computers connected for the purpose of routing, managing, and storing rapidly changing data. A local area network (LAN), which is restricted by distances of up to on...