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Pastimes : Let's Talk About Our Feelings!!! -- Ignore unavailable to you. Want to Upgrade?

To: The Philosopher who wrote (44026)7/6/1999 12:52:00 AM
From: Father Terrence  Respond to of 108807
 
Let's not get caught up in Ptolemy's wheels which were discredited long, long ago...



To: The Philosopher who wrote (44026)7/6/1999 2:35:00 AM
From: nihil  Respond to of 108807
 
None of those guys understood that the relative motion of the planets was based on elliptical orbits as estimated by Kepler from Tycho's observations. No one ever made an accurate prediction of planetary positions using Ptolemy's methods -- in particular Tycho (who rejected Copernicus) made serious mistakes. This was especially true of Mercury, which has very complex movements which were not understood until modern times -- Einstein and Mariner 10.


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