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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...

Flynt, Larry Claxton, Jr.

(Encyclopedia) Flynt, Larry Claxton, Jr., 1942-2021, American magazine publisher, b. Lakeville, Ky. Flynt was the son of a sharecropper, and dropped out of school at...

Alexander, Andrew Lamar, Jr.

(Encyclopedia) Alexander, Andrew Lamar, Jr., American politician, b. Maryville, Tn., Vanderbilt Univ. (B.A., 1962); New York Univ. (J.D., 1965). The son of educators, Alexander studied at Vanderbilt Uni...

Clarke, Arthur C.

(Encyclopedia)Clarke, Arthur C. (Sir Arthur Charles Clarke), 1917–2008, British science fiction writer. During World War II he served as a radar instructor and aviator in the Royal Air Force. After the war he obt...

Tubman, Harriet

(Encyclopedia)Tubman, Harriet, c.1820–1913, American abolitionist, b. Dorchester co., Md. Born into slavery, she escaped to Phildelphia in 1849, and subsequently became one of the most successful “conductors”...

Great Falls

(Encyclopedia)Great Falls, city (2020 pop. 60,442), seat of Cascade co., N central Mont., second largest city in the state, at the confluence of the Missouri and Sun ...

flux, magnetic

(Encyclopedia)flux, magnetic, in physics, term used to describe the total amount of magnetic field in a given region. The term flux was chosen because the power of a magnet seems to “flow” out of the magnet at ...

dimension, in physics

(Encyclopedia)dimension, in physics, an expression of the character of a derived quantity in relation to fundamental quantities, without regard for its numerical value. In any system of measurement, such as the met...

Changsha

(Encyclopedia)Changsha chängˈshäˈ [key], city (1994 est. pop. 1,198,100), capital of Hunan prov., S China, on the Xiang River. The name, which means “long sandbank,” is derived from an island in the river. ...

Schenectady

(Encyclopedia)Schenectady skənĕkˈtədē [key], city (1990 pop. 65,566), seat of Schenectady co., E central N.Y., on the Mohawk River and Erie Canal; founded 1661 by Arent Van Curler, inc. 1798. The General Elect...