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Peter III, czar of Russia

(Encyclopedia)Peter III, 1728–62, czar of Russia (1762), son of Charles Frederick, dispossessed duke of Holstein-Gottorp, and of Anna Petrovna, daughter of Peter the Great. He succeeded to the throne on the death...

Brahe, Tycho

(Encyclopedia)Brahe, Tycho tīˈkō brä [key], 1546–1601, Danish astronomer. The most prominent astronomer of the late 16th cent., he paved the way for future discoveries by improving instruments and by his prec...

Beatty, Warren

(Encyclopedia)Beatty, Warren (Henry Warren Beaty) bāˈtē, bēˈ– [key], 1937–, motion picture act...

steering system

(Encyclopedia)steering system, in automobiles, steering wheel, gears, linkages, and other components used to control the direction of a vehicle's motion. Because of friction between the front tires and the road, es...

Adler, Larry

(Encyclopedia)Adler, Larry (Lawrence Cecil Adler) ădˈlər [key], 1914–2001, American harmonica player, b. Baltimore. Adler, whose career spanned seven decades, is generally credited with elevating the harmonica...

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...

Lagos, city, Nigeria

(Encyclopedia)Lagos lāˈgŏs, läˈgôs [key], city (1991 est. pop. 1,274,000), SW Nigeria, on the Gulf of Guinea. It comprises the island of Lagos and three former neighboring islands (now connected by landfill t...

Miami Beach

(Encyclopedia)Miami Beach, city (1990 pop. 92,639), Dade co., SE Fla., on an island between Biscayne Bay and the Atlantic Ocean; inc. 1915. It is connected to Miami by four causeways. Miami Beach is a popular year-...

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...