# General relativity at 0K

Relativistic gravity affects particle in motion, does it affect particle that are resting too? How? and if not could one say that the matter at 0K is not affected by gravity?

I'm not a physicist; is just a thought and probably really naive.

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By definition, at OK there are is no thermal motion, yet this does not constrain movements at larger scales (ok, this is oversimplified because large-scale motion usually has some friction that generate temperature increase, but holds in theory). –  mbq Sep 5 '11 at 17:03

The term $T_{\mu\nu}$ on the right is the stress-energy tensor. Matter at rest contributes to the $T_{00}$ term, even if the matter has no other interactions than gravitational, so matter at rest contributes to the curvature of spacetime. If you have a lump of mass in space and you are not moving with respect to it, it will still attract you.