--[[User:BRichtigen|BRichtigen]] 16:29, 6 November 2008 (EST)
--[[User:BRichtigen|BRichtigen]] 16:29, 6 November 2008 (EST)
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: So how would Ptolemy's theory be any different if he had not made the assumption? What flaws were found in the 1500s? How is it a flaw for Jupiter to have moons or Venus to have phases? Why can't elliptical orbits be explained in a geocentric universe? Ptolemy himself used eccentric orbits. Can you provide some substantiation for any of Samd's edits? [[User:RSchlafly|RSchlafly]] 19:18, 6 November 2008 (EST)