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单词 aristarchus of samos
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Aristarchus of Samos


Aristarchus of Sa·mos

S0055300 (sā′mŏs′, săm′ōs′, sä′môs) fl. 270 bc. Greek astronomer who was among the first to propose that the sun is the center of the universe and that the earth moves around the sun.

Aristarchus of Samos

n (Biography) 3rd century bc, Greek astronomer who anticipated Copernicus in advancing the theory that the earth revolves around the sun
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Noun1.Aristarchus of Samos - an ancient Greek astronomer who was one of the first to propose a heliocentric theory of the universe (circa 270 BC)

Aristarchus of Samos


Aristarchus of Samos

(ăr'ĭstär`kəs, ăr'ĭstär`kəs, sā`mŏs), fl. c.310 B.C.–c.230 B.C., Greek astronomer and mathematician of the Alexandrian school. He is said to have been the first to propose a heliocentric or sun-centered theory of the universe. Of his writings only a treatise, The Sizes and Distances of the Sun and Moon, remains. The procedures he followed in this treatise were highly original; his calculation of the moon's distance was incorrect, but he derived a more correct value for the solar year. The treatise does not mention his conclusion that the earth moves around the sun and that the sun is at rest, but statements by Archimedes and Copernicus indicate that he held this theory. Other conclusions in which he seems to have anticipated later scientists are that the sun is larger than the earth, that the earth rotates upon its axis causing day and night, and that its axis is inclined to the plane of the ecliptic, causing the change of seasons.

Bibliography

See T. L. Heath, Aristarchus of Samos (1913, repr. 1981).

Aristarchus of Samos

(fl. c. 270 B.C.) Greek astronomer; first to maintain that Earth rotates and revolves around Sun. [Gk. Hist.: EB, I: 514]See: Astronomy
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