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acting

(Encyclopedia)acting, the representation of a usually fictional character on stage or in films. At its highest levels of accomplishment acting involves the employment of technique and/or an imaginative ...

galaxy

(Encyclopedia)CE5 Hubble classification of galaxies: Elliptical galaxies (E) are classified according to the degree of flattening of the ellipse. Spiral galaxies (S) and barred spiral galaxies (SB) are classifie...

Arthurian legend

(Encyclopedia)Arthurian legend, the mass of legend, popular in medieval lore, concerning King Arthur of Britain and his knights. Although there are innumerable variations of the Arthurian legend, the basic story...

mystery

(Encyclopedia)mystery or mystery story, literary genre in which the cause (or causes) of a mysterious happening, often a crime, is gradually revealed by the hero or heroine; this is accomplished through a mixture o...

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...

Grant, Ulysses Simpson

(Encyclopedia)Grant, Ulysses Simpson, 1822–85, commander in chief of the Union army in the Civil War and 18th President (1869–77) of the United States, b. Point Pleasant, Ohio. He was originally named Hiram Uly...

rubber

(Encyclopedia)CE5 Basic molecules in rubber rubber, any solid substance that upon vulcanization becomes elastic; the term includes natural rubber (caoutchouc) and synthetic rubber. The term elastomer is sometim...

Panama, country, Central America

(Encyclopedia)CE5 Panama pănˈəmäˌ [key], Span. Panamá, officially Republic of Panama, republic (2015 est. pop. 3,657,000), 29,760 sq mi (77,081 sq km), occupying the Isthmus of Panama, which connects Centr...

radio

(Encyclopedia)CE5 A. AM transmitter B. AM receiver radio, transmission or reception of electromagnetic radiation in the radio frequency range. The term is commonly applied also to the equipment used, especially...

American art

(Encyclopedia)American art, the art of the North American colonies and of the United States. There are separate articles on American architecture, North American Native art, pre-Columbian art and architecture, Mexi...