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nuclear energy

(Encyclopedia)CE5 Graph of binding energy per nucleon as a function of mass number nuclear energy, the energy stored in the nucleus of an atom and released through fission, fusion, or radioactivity. In these pr...

particle accelerator

(Encyclopedia)CE5 Linear accelerator (LINAC) CE5 Cyclotron: As the charged particles move faster, they spiral out to the edge of the Ds. particle accelerator, apparatus used in nuclear physics to produce bea...

air pollution

(Encyclopedia)air pollution, contamination of the air by noxious gases and minute particles of solid and liquid matter (particulates) in concentrations that endanger health. The major sources of air pollution are t...

library

(Encyclopedia)library, a collection of books or other written or printed materials, as well as the facility in which they are housed and the institution that is responsible for their maintenance. Modern libraries m...

newspaper

(Encyclopedia)newspaper, publication issued periodically, usually daily or weekly, to convey information and opinion about current events. In England large newspaper-publishing empires were built up by Lords...

telescope

(Encyclopedia)CE5 Mirror arrangements for a reflecting telescope telescope, traditionally, a system of lenses, mirrors, or both, used to gather light from a distant object and form an image of it. Traditional o...

jazz

(Encyclopedia)jazz, the most significant form of musical expression of African-American culture and arguably the most outstanding contribution the United States has made to the art of music. ...

Denmark

(Encyclopedia)CE5 Denmark dĕnˈmärk [key], Dan. Danmark, officially Kingdom of Denmark, kingdom (2015 est. pop. 5,689,000), 16,629 sq mi (43,069 sq km), N Europe. It borders on Germany in the south, the North ...

Spanish-American literature

(Encyclopedia)Spanish-American literature, the writings of both the European explorers of Spanish America and its later inhabitants. See also Spanish literature; Portuguese literature; Brazilian literature. T...

Cuba

(Encyclopedia)CE5 Cuba kyo͞oˈbə, Span. ko͞oˈbä [key], officially Republic of Cuba, republic (2020 est. pop. 11,326,616), ...