QuoteDisplay MoreIn his book The Sand Reckoner, Archimedes set out to demonstrate
methods for dealing mathematically with extremely large numbers, such as
the number of grains of sand which would fill the universe (hence the title
of his book). Of course to arrive at the largest number possible, he had to
find a description of the largest theoretical universe known in which to
place his grains, and for that he turned to Aristarchus. Having explained to
his patron, King Gelon, that most astronomers believed the earth to be the
center of the universe, around which everything else rotated, he added
almost as an aside:But Aristarchus has brought out a book consisting of certain hypotheses,
wherein it appears, as a consequence of the assumptions made, that the
universe is many times greater than the “universe” just mentioned. His
hypotheses are that the fixed stars and the sun remain unmoved, that the
earth revolves about the sun on the circumference of a circle, the sun lying
in the middle of the orbit, and that the sphere of fixed stars, situated about
the same centre 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 centre of the sphere bears to its surface.
--Archimedes, The Sand Reckoner, chapter 1:4-5Here then was Aristarchus’s great thought, preserved only as a reference in
another book. Archimedes for his part did not even believe it to be true,
only being interested in the sheer scale of the model he proposed.
The response to Aristarchus’s hypothesis of a heliocentric solar system
was perhaps to be predicted and may in itself help to explain why so few of
his own works survive. Contemporaries were horror-struck by the new role
this Alexandrian astronomer gave to the earth and, by implication, to the
people on it. How dare he take away their special position at the very heart
of creation? One of them, by the name of Cleanthes, wrote a treatise entitled
simply Against Aristarchus. This has since been lost, so we don’t know on
what grounds he attacked Aristarchus, but Plutarch would later comment
that Cleanthesthought it was the duty of the Greeks to indict Aristarchus of Samos on
charges of impiety for putting in motion the Hearth of the Universe (i.e. the
Earth), this being the effect of his attempt to save the phenomena by
supposing heaven to remain at rest and the Earth to revolve in an oblique
circle, while it rotates at the same time, about its own axis.
--Plutarch, On the Face Which Appears on the Orb of the Moon, book 6
--The Rise and Fall of Alexandria, by Justin Pollard and Howard Reid