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Copenhagen

(Encyclopedia)Copenhagen köˌbənhounˈ [key], city (2021 pop. 799,033), capital of Denmark and of Copenhagen co., ...

Prague

(Encyclopedia)Prague präg, prāg [key], Czech Praha, Ger. Prag, city (1993 pop. 1,216,500), capital and largest city of the Czech Republic and former capital of Czechoslovakia, on both banks of the Vltava (Ger. Mo...

Cassiopeia, in astronomy

(Encyclopedia)Cassiopeia, in astronomy, prominent northern constellation located almost directly opposite the Big Dipper across the north celestial pole. Five bright stars in the constellation form a rough W (or M)...

observatory

(Encyclopedia)observatory, scientific facility especially equipped to detect and record naturally occurring scientific phenomena. Although geological and meteorological observatories exist, the term is generally ap...

Kepler's laws

(Encyclopedia) CE5 Schematic representation of Kepler's second law: The areas ABF and A′B′F′ are equal and are swept out in equal intervals of time by a planet orbiting around the sun (at F). Kepler's laws...

Renaissance

(Encyclopedia)Renaissance rĕnəsänsˈ, –zänsˈ [key] [Fr.,=rebirth], term used to describe the development of Western civilization that marked the transition from medieval to modern times. This article is conc...

comet

(Encyclopedia) CE5 Comet: Whatever the direction of a comet's flight, its “tail” always points away from the sun. The tail disappears when the comet is far from the sun. comet [Gr.,=longhaired], a small cele...

astronomy

(Encyclopedia)astronomy, branch of science that studies the motions and natures of celestial bodies, such as planets, stars, and galaxies; more generally, the study of matter and energy in the universe at large. ...

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 ...

physics

(Encyclopedia)physics, branch of science traditionally defined as the study of matter, energy, and the relation between them; it was called natural philosophy until the late 19th cent. and is still known by this na...
 

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