Greek Cosmogony
Astronomy -- Ptolemy was able to find mathematical
formulae allowing the prediction of eclipse. These formulae
The truth of this is attested by the correctness
of the calculations -- always made
on the basis of [epicycles & eccentricity]
concerning the eclipses and the exact determination
of their times as well as well as of the
moment when it begins to get dark, and of the
length of the time of the darkness.
(12)
Yet P. was unable to deduce the true shape of the
heavenly spheres (planetary orbits).
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