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Lu wrote

> Given the level of scientific knowledge, inquiry, and downright genius
> among the ancient Greeks, I'm rather surprised that the idea of a
> heliocentric universe didn't occur to one of them.

It did indeed occur to one or more of them, Aristarchus of Samos. (Approx.
300BC if memory serves--learned initially in a book obtained for me by
Alex.)  Long story short, the body politic was enamored with Plato et al so
that was "wrong" in so many ways. That whole circle/sphere/uniform motion
ran through Copernicus, and partially through Kepler et al.  Problem being,
no math or physics, and only approximate measurements, to prove/disprove
theories.  Not dissimilar to the state we can still find "advanced" physics
in, IMHO.

Ken of Celestaire mentioned Arthur Koestler's "The Sleepwalkers" on the list
a while back.  I find it a tough read, as I feel it plays to a well-rounded
and highly-educated audience, but then takes certain liberties the intended
reader might (should IMHO) find suspect.  But if you can wade through the
psychoanalysis ad nauseum and leaps, there is a good view of the history of
astronomy, as well as other interesting information to be gleaned.

Bill

   

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