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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...

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...

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...

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...

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...

Reconstruction

(Encyclopedia)Reconstruction, 1865–77, in U.S. history, the period of readjustment following the Civil War. At the end of the Civil War, the defeated South was a ruined land. The physical destruction wrought by t...

motion picture photography

(Encyclopedia)motion picture photography or cinematography, photographic arts and techniques involved in making motion pictures. See also photography, still. Cinematography developed as a separate craft ve...

Ohio, state, United States

(Encyclopedia)CE5 Ohio, midwestern state in the Great Lakes region of the United States. It is bordered by Pennsylvania (NE), West Virginia (SE) and Kentucky (S) across the Ohio River, Indiana (W), and Michigan ...

Liberia

(Encyclopedia)CE5 Liberia lībērˈēə [key] [New Lat.,=place of freedom], officially Republic of Liberia, republic (2015 est. pop. 4,500,000), 43,000 sq mi (111,370 sq km), W Africa. Liberia fronts on the Atla...