Columbia Encyclopedia

Search results

500 results found

Reynolds, Debbie

(Encyclopedia) Reynolds, Debbie, 1932-2016, American actress, singer, and dancer, b. El Paso, Tx., as Mary Frances Reynolds. Reynolds’ family relocated from El Paso...

Dench, Dame Judi

(Encyclopedia)Dench, Dame Judi jo͞oˈdē dĕnch [key], 1934–, British actress, b. York, England, as Judith Olivia Dench. She studied at the Central School of Speech Training and Dramatic Art, London, made her de...

digital circuit

(Encyclopedia)digital circuit, electronic circuit that can take on only a finite number of states. That is contrasted with analog circuits, whose voltages or other quantities vary in a continuous manner. Binary (tw...

facsimile

(Encyclopedia)facsimile făksĭmˈəlē [key] or fax, in communications, system for transmitting pictures or other graphic matter by wire or radio. Facsimile is used to transmit such materials as documents, telegra...

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...

Frayn, Michael

(Encyclopedia)Frayn, Michael, 1933–, English playwright and novelist, b. London. After graduating from Cambridge he worked as a reporter and columnist for the Manchester Guardian and the Observer. As a playwright...

Hitchcock, Sir Alfred

(Encyclopedia)Hitchcock, Sir Alfred, 1899–1980, English-American film director, writer, and producer, b. London. Hitchcock began his career as a director in 1925 and became prominent with The 39 Steps (1935) and ...

Smith, Dame Maggie

(Encyclopedia)Smith, Dame Maggie (Dame Margaret Natalie Cross), 1934–, English actress. Smith first appeared on stage in Twelfth Night (1952). With her precise, sometimes rapid-fire, articulation and her meticulo...