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electricity

(Encyclopedia)CE5 Electrical and radio symbols electricity, class of phenomena arising from the existence of charge. The basic unit of charge is that on the proton or electron—the proton's charge is designate...

ether, in physics and astronomy

(Encyclopedia)ether or aether, in physics and astronomy, a hypothetical medium for transmitting light and heat (radiation), filling all unoccupied space; it is also called luminiferous ether. In Newtonian physics a...

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...

Kitt Peak National Observatory

(Encyclopedia)Kitt Peak National Observatory, astronomical observatory located southwest of Tucson, Ariz.; it was founded in 1958 under contract with the National Science Foundation and is administered by the Assoc...

Miller, Sir Jonathan Wolfe

(Encyclopedia)Miller, Sir Jonathan Wolfe, 1934–2019, English director, actor, writer, and physician; during his long career in the performing arts, he at times devoted himself to medicine. Miller made his first L...

Voinovich, Vladimir Nikolayevich

(Encyclopedia)Voinovich, Vladimir Nikolayevich, 1932–2018, Russian satirist and political dissident. His father was dissident journalist who was jailed for his activities. Voinovich served in the army (1951–55)...

satellite, artificial

(Encyclopedia)CE5 A. Nimbus weather satellite B. Syncom communications satellite satellite, artificial, object constructed by humans and placed in orbit around the earth or other celestial body (see also space ...

navigation

(Encyclopedia)navigation, science and technology of finding the position and directing the course of vessels and aircraft. The next great revolution in navigation occurred in the 20th cent., when radio signals ...

tsunami

(Encyclopedia)tsunami tso͝onäˈmē [key], series of catastrophic ocean waves generated by submarine movements, which may be caused by earthquakes, volcanic eruptions, landslides beneath the ocean, or an asteroid ...

Cooke, Alistair

(Encyclopedia)Cooke, Alistair, 1908–2004, Anglo-American journalist, b. Salford, England, as Alfred Cooke; grad. Cambridge, 1930, where he officially adopted the name Alistair. Cooke became famous in Britain for ...