Re: This Week's Finds in Mathematical Physics (Week 207)

ebunn_at_lfa221051.richmond.edu
Date: 07/28/04 

Date: 28 Jul 2004 04:58:59 -0400

In article <41064b8d@news.sentex.net>,
John Baez <baez@math.removethis.ucr.andthis.edu> wrote:

>It turned out to describe an idea I'd never even dreamt of before:
>a heliocentric cosmology in which the planets move along circular orbits
>with epicycles a la Ptolemy!

There is nothing new under (or orbiting) the Sun. This idea is
originally due to Copernicus. Thomas Kuhn's book "The Copernican
Revolution" has a nice discussion.

-Ted 

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