Anaximander (ənăk'sĭmăn`dər), c.611–c.547 B.C., Greek philosopher, b. Miletus; pupil of Thales Thales (thā`lēz), c.636–c.546 B.C.
..... Click the link for more information. . He made the first attempt to offer a detailed explanation of all aspects of nature. Anaximander argued that since there are so many different sorts of things, they must all have originated from something less differentiated than water, and this primary source, the boundless or the indefinite (apeiron), had always existed, filled all space, and, by its constant motion, separated opposites out from itself, e.g., hot and cold, moist and dry. These opposites interact by encroaching on one another and thus repay one another's "injustice." The result is a plurality of worlds that successively decay and return to the indefinite. The notion of the indefinite and its processes prefigured the later conception of the indestructibility of matter. Anaximander also had a theory of the relation of earth to the heavenly bodies, important in the history of astronomy. His view that man achieved his physical state by adaptation to environment, that life had evolved from moisture, and that man developed from fish, anticipates the theory of evolution.
(born 610 BC, Miletus—died 546/545 BC) Greek philosopher, often called the founder of astronomy. He apparently wrote treatises on geography, astronomy, and cosmology that survived for several centuries and made a map of the known world. He was the first thinker to develop a cosmology. A rationalist, he prized symmetry and used geometry and mathematical proportions to help map the heavens; his theories thus departed from earlier, more mystical conceptions and foreshadowed the achievements of later astronomers. Whereas earlier theories had suggested Earth was suspended or supported from elsewhere in the heavens, Anaximander asserted that Earth remained unsupported at the centre of the universe because it had no reason to move in any direction.
Anaximander
..... Click the link for more information. . He made the first attempt to offer a detailed explanation of all aspects of nature. Anaximander argued that since there are so many different sorts of things, they must all have originated from something less differentiated than water, and this primary source, the boundless or the indefinite (apeiron), had always existed, filled all space, and, by its constant motion, separated opposites out from itself, e.g., hot and cold, moist and dry. These opposites interact by encroaching on one another and thus repay one another's "injustice." The result is a plurality of worlds that successively decay and return to the indefinite. The notion of the indefinite and its processes prefigured the later conception of the indestructibility of matter. Anaximander also had a theory of the relation of earth to the heavenly bodies, important in the history of astronomy. His view that man achieved his physical state by adaptation to environment, that life had evolved from moisture, and that man developed from fish, anticipates the theory of evolution.
Bibliography
See C. H. Kahn, Anaximander and the Origins of Greek Cosmology (1960); P. Selegman, The Apeiron of Anaximander (1974).
Anaximander
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Anaximander, represented with a sundial, mosaic, 3rd century AD; in the Rhineland Museum, Trier, …
(credit: Courtesy of the Landesmuseum, Trier, Ger.)
Anaximander
611--547 bc, Greek philosopher, astronomer, and mathematician who believed the first principle of the world to be the Infinite
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