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Talk:Geocentric theory (view source)
Revision as of 20:42, November 6, 2008
, 20:42, November 6, 2008→Ptolemy's view of a stationary earth: he distinguishes astronomy from astrology
For now, I changed the article back to the version of SamD, which seems to be more accurate. I'll add more information to it in a little while. --[[User:BRichtigen|BRichtigen]] 13:20, 6 November 2008 (EST)
For now, I changed the article back to the version of SamD, which seems to be more accurate. I'll add more information to it in a little while. --[[User:BRichtigen|BRichtigen]] 13:20, 6 November 2008 (EST)
: The quote I found in the Tetrabiblos was at the beginning where he distinguishes astronomy from astrology by describing astronomy as where "we apprehend the aspects of the movements of sun, moon, and stars in relation to each other and to the earth, as they occur from time to time". (The word "stars" includes the fixed stars and the planets.)
: You are right, Ptolemy does say in the Almagest that the Earth is stationary and at the center of the universe. But he bases it mostly on terrestial arguments and acknowledges that others hold a different view.
: I just don't see how this supports Samd's edits. Ptolemy did not assume that Earth lies at the center of the universe. He expressed an opinion about it. It is not clear whether the opinion is essential to his theory. [[User:RSchlafly|RSchlafly]] 15:42, 6 November 2008 (EST)