Tuesday, July 24, 2007
Aristarchus of Samos (c 310-230 BCE)
Aristarchus of Samos brought out a book consisting of certain hypotheses, in which the premises lead to the conclusion that the universe is many times greater than that now so called. His hypotheses are that the fixed stars and the sun remain motion less, that the earth revolves about the sun in the circumference of a circle, the sun lying in the middle of the orbit, and that the sphere of the fixed stars, situated about the same center as the sun, is so great that the circle in which he supposes the earth to revolve bears such a proportion to the distance of the fixed stars as the center of the sphere bears to its surface. - Archimedes ca 250 BCE
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COPAC UK: Aristarchus
Library of Canada: Aristarchus
Library of Congress: Aristarchus
Aristarchus was born on the island of Samos and died in Alexandria. One treatise, On the Sizes and Distances of the Sun and Moon survives. Based upon his measurement and calculation of the size of the sun, Aristarchus advanced a heliocentric hypothesis 17 centuries before Copernicus.
Books from Alibris: Aristarchus