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modem

(Encyclopedia)modem [modulator/demodulator], an external device or internal electronic circuitry used to transmit and receive digital data over a communications line normally used for analog signals. A modem attach...

Pinter, Harold

(Encyclopedia)Pinter, Harold, 1930–2008, English dramatist. Born in Hackney in London's East End, the son of an English tailor of Eastern European Jewish ancestry, he studied at London's Royal Academy of Dramatic...

Manchester, city, England

(Encyclopedia)Manchester mănˈchəstər, –chĕsˌtər [key], city and metropolitan borough (1991 pop. 397,400), NW England, a port on the Irwell, Medlock, Irk, and Tib rivers. Manchester remains the center of th...

migration of animals

(Encyclopedia)migration of animals, movements of animals in large numbers from one place to another. In modern usage the term is usually restricted to regular, periodic movements of populations away from and back t...

astronomy

(Encyclopedia)astronomy, branch of science that studies the motions and natures of celestial bodies, such as planets, stars, and galaxies; more generally, the study of matter and energy in the universe at large. ...

Riga

(Encyclopedia)Riga rēˈgə [key], city (2011 provisional pop. 657,424), capital of Latvia, on the Daugava (Western Dvina) River near its entry into the Gulf of Riga. A major Baltic port, it is also a rail junction...

transistor

(Encyclopedia)CE5 Simple transistor circuit transistor, three-terminal, solid-state electronic device used for amplification and switching. It is the solid-state analog to the triode electron tube; the transist...

cosmology

(Encyclopedia)cosmology, area of science that aims at a comprehensive theory of the structure and evolution of the entire physical universe. The earliest pre-Ptolemaic theories assumed that the earth was the cent...

censorship

(Encyclopedia)censorship, official prohibition or restriction of any type of expression believed to threaten the political, social, or moral order. It may be imposed by governmental authority, local or national, by...

chromosphere

(Encyclopedia)chromosphere krōˈməsfērˌ [key] [Gr.,=color sphere], layer of rarefied, transparent gases in the solar atmosphere; it measures 6,000 mi (9,700 km) in thickness and lies between the photosphere (th...