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Bakunin, Mikhail

(Encyclopedia)Bakunin, Mikhail mēkhəyēlˈ bəko͞oˈnyĭn [key], 1814–76, Russian revolutionary and leading exponent of anarchism. He came from an aristocratic family but entered upon revolutionary activities ...

Bolyai

(Encyclopedia)Bolyai bōˈlyoi [key], family of Hungarian mathematicians. The father, Farkas, or Wolfgang, Bolyai, 1775–1856, b. Bolya, Transylvania, was educated in Nagyszeben from 1781 to 1796 and studied in Ge...

Buchman, Frank Nathan Daniel

(Encyclopedia)Buchman, Frank Nathan Daniel bo͝okˈmən [key], 1878–1961, American evangelist, b. Pennsburg, Pa. The international movement he founded has been variously called First Century Christian Fellowship,...

motion

(Encyclopedia)motion, the change of position of one body with respect to another. The rate of change is the speed of the body. If the direction of motion is also given, then the velocity of the body is determined; ...

Neanderthal man

(Encyclopedia)Neanderthal man –tôlˌ [key], a species of Homo, the genus to which contemporary humans belong, known as H. neandertalensis after Neanderthal (now Neandertal), Germany, the valley where the first s...

textiles

(Encyclopedia)textiles, all fabrics made by weaving, felting, knitting, braiding, or netting, from the various textile fibers (see fiber). Yarn, fabrics, and tools for spinning and weaving have been found among...

parallax

(Encyclopedia)CE5 The trigonometric parallax of a star, expressed by the angle θ, is a measure of its apparent motion against the background of more distant stars as a result of the earth's motions in its orbit...

Vedanta

(Encyclopedia)Vedanta vĭdänˈtə, –dănˈ– [key], one of the six classical systems of Indian philosophy. The term “Vedanta” has the literal meaning “the end of the Veda” and refers both to the teachin...

sovereignty

(Encyclopedia)sovereignty, supreme authority in a political community. The concept of sovereignty has had a long history of development, and it may be said that every political theorist since Plato has dealt with t...

thermodynamics

(Encyclopedia)thermodynamics, branch of science concerned with the nature of heat and its conversion to mechanical, electric, and chemical energy. Historically, it grew out of efforts to construct more efficient he...