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planet

(Encyclopedia)planet [Gr.,=wanderer], a large nonluminous body of rock, gas, or ice that orbits the sun or another star, has a rounded shape due to gravity, and has cleared its orbit of smaller objects. The term, o...

solar system

(Encyclopedia)CE5 Solar system CE5 solar system, the sun and the surrounding planets, natural satellites, dwarf planets, asteroids, meteoroids, and comets that are bound by its gravity. The sun is by far the ...

German literature

(Encyclopedia)German literature, works in the German language by German, Austrian, Austro-Hungarian, and Swiss authors, as well as by writers of German in other countries. The postwar decades saw a gradual litera...

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...

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. ...

Reformation

(Encyclopedia)Reformation, religious revolution that took place in Western Europe in the 16th cent. It arose from objections to doctrines and practices in the medieval church (see Roman Catholic Church) and ultimat...

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...

mathematics

(Encyclopedia)mathematics, deductive study of numbers, geometry, and various abstract constructs, or structures; the latter often “abstract” the features common to several models derived from the empirical, or ...

science

(Encyclopedia)science [Lat. scientia=knowledge]. For many the term science refers to the organized body of knowledge concerning the physical world, both animate and inanimate, but a proper definition would also hav...

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