To Steven
On a final note: You say space-time is affected by density, that the earth does not curve space-time and, I infer, that the precession of mercury shows the sun's effect on space-time.
How can you explain these views when the sun's density is 1.4 g/cm3 (Namowitz, Samuel N. Heath Earth Science. Canada: Heath, 1994: 379. "… Sun's density is 1.4 times that of water.)
and the Earth's density is 5.519 g/cm3 (Neff, Robert F. & Zitewitz, Paul W. Physics, Principles and Problems. New York: Glencoe, 1995: 159. "Mass of the Earth 5.979 × 1024 kg Radius of the Earth 6.3713 × 103 km)
The sun curves space-times more than the earth because it is more massive, not because it is denser.
Last edited by Archy; 14-04-2009 at 03:36 PM.
Reason: clarity
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