I was referring to the first post in the thread Integral from -r0 to +r0 of (r0^2-r^2)/(R0-r)^2 dr It was the result of approximation and full precision gives 1/r^2 as in ordinary gravity.
But of course any non point mass will have tidal effects so the center of mass issue remains. Are there any good sites on how this effect affects the stability of orbits. Maybe some other effect is balancing this effect to make orbits stable? Rotation of the elongation due to tidal effect also complicates things. I can imagine that only certain combinations of tidal elongation and rotation exists. Is the bulge of the elongation always between 0 to pi/2 radians from the direction to the other body? David David Jonsson, Sweden, phone callto:+46703000370 On Sat, Nov 27, 2010 at 7:39 PM, Mauro Lacy <ma...@lacy.com.ar> wrote: > I'm not sure I understand what you mean. > Are you saying that gravity behaves in the "traditional" (Newtonian) way > inside solid bodies? Do you have links or papers to experiments that > support this? As I said, there are reported anomalies inside boreholes. > How do you or others explain them? > > Take into account that although gravity can be related to mass and > density, that is, it can have a dependency on mass and density, that > does not mean mass and density are the causes of gravity. Indeed, it > makes a lot of sense to think just the opposite: that which "causes" > mass (or the effects of mass) has to be massless in itself, to avoid a > circular argument. The cause of gravity must be immune to the effects of > gravity, by the very definition of cause. > > On 11/27/2010 08:45 AM, David Jonsson wrote: > > Sorry, if the integration is done with higher precision it turns out > > to be the traditional one. > > > > But it is still useful for determining the gravity from other > > geometries. I think it is bad that bodies are approximated with point > > sources in their "center of gravity". > > > > David > > > > > > > >
