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    Re: Universe of the ancient Greeks.
    From: Frank Reed CT
    Date: 2006 Mar 14, 02:34 EST

    Bill, you wrote:
    "That whole  circle/sphere/uniform motion ran through Copernicus, and
    partially through  Kepler et al."
    Have I got a trick for you. If you give me any graph of  any physical
    phenomenon whatsoever, I can write a representation of it in terms  of a series of
    uniform circular motions having various amplitudes and  frequencies. Cool, huh?
    [just to be careful here, a system of epicycles is  analogous to, but not
    equivalent to, a Fourier analysis]
    "  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."
    There would be no major, lasting advance  in theories of the Solar System
    until telescopes were invented and evidence  could test the competing models.
    I agree with you (assuming I've  understood you) that fundamental physics is
    in a similar bind today. Physics  works perfectly. There is no conflict with
    experiment or observation. And until  there is, who can say whether things like
    string theory/brane theory etc have  more in common with the Ptolemaic system
    of the Copernican one. Without the test  of experiment, we are at a
    standstill, and the subject slowly degenerates.   [speaking of
    degenerating physics, and I apologize for  being way off-topic now (e-mail me
    off-list if this interests you), did anyone  see the stories recently about a
    discovery of "antigravity" in a "new solution"  of the field equations of general
    relativity?? holy cow, any incompetent twit  can claim to be a physicist today!
    42.0N  87.7W, or 41.4N 72.1W.

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