Originally posted by moebius
reply to post by ImaFungi
You are asking a quite fundamental question. Does a mass (or charge) interact with itself (its own field)? This also goes beyond classic physics. But for low velocities this effects can be neglected.
In general you have to work with so called "effective" fields to take self interaction into account. This is above my skill level I fear (would have to look up stuff myself). I recommend to talk to a physicist.
For math inclined a few links:
but this i think is how planets form...millions of separate mass in a vicinity that will later be a body of mass because gravity "forces" this mass to interact with one another.....
are the "gnarly" physical conditions at the center of the earth because of gravity?
I know it is different but with a spiral galaxy,, do the star systems that surround the supermassive black hole, contain relatively more mass then the super massive black hole ( like the outer area of a planet, relative to its core, has more mass) ,.., and yet a supermassive black hole is known to have a lot of gravity?
and i dont think its a matter of a mass interacting with itself,, the discussion was if there was a seperate from earth mass at the center of the earth, i was trying to understand why you say that mass would not be affected by earths gravity..
edit on 21-10-2012 by ImaFungi because: (no reason given)