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bear, in zoology

(Encyclopedia)bear, large mammal of the family Ursidae in the order Carnivora, found almost exclusively in the Northern Hemisphere. Bears have large heads, bulky bodies, massive hindquarters, short, powerful limbs,...

python, in zoology

(Encyclopedia)python pīˈthŏn [key], name for nonvenomous constrictor snakes of the boa family, found in the tropical regions of Africa, Asia, Australia, and the S Pacific islands. Pythons climb and swim expertly...

joint, in geology

(Encyclopedia)joint, in geology, fracture in rocks along which no appreciable movement has occurred (see fault). Nearly vertical, or sheet, joints that result from shrinkage during cooling are commonly found in ign...

fox, in zoology

(Encyclopedia)fox, carnivorous mammal of the dog family, found throughout most of the Northern Hemisphere. It has a pointed face, short legs, long, thick fur, and a tail about one half to two thirds as long as the ...

Mercury, in astronomy

(Encyclopedia)Mercury, in astronomy, nearest planet to the sun, at a mean distance of 36 million mi (58 million km); its period of revolution is 88 days. Mercury passes through phases similar to those of the moon a...

secession, in art

(Encyclopedia)secession, in art, any of several associations of progressive artists, especially those in Munich, Berlin, and Vienna, who withdrew from the established academic societies or exhibitions. The artists ...

buffalo, in zoology

(Encyclopedia)buffalo, name commonly applied to the American bison but correctly restricted to certain related African and Asian mammals of the cattle family. The water buffalo, or Indian buffalo, Bubalus bubalis, ...

draft, in banking

(Encyclopedia)draft, in banking, order by one party to another party to pay a stated sum to the person or firm in whose favor the draft is made. It is similar in form to the ordinary bank check. Often the drawer an...

elevator, in machinery

(Encyclopedia)elevator, in machinery, device for transporting people or goods from one level to another. The term is applied to the enclosed structures as well as the open platforms used to provide vertical transpo...

Hell, Stefan Walter

(Encyclopedia)Hell, Stefan Walter, 1962–, German physicist, Ph.D. Heidelberg Univ., 1990. Hell worked at the European Molecular Biology Laboratory in Heidelberg (1991–93) and at the Univ. of Turku in Finland (1...