Posted:

**Mar 02, 2011 12:25 pm**twistor59 wrote:Xaihe wrote:Thanks everyone. So does this mean that the equivalence principle can't be applied to the center of a gravitational well?Wikipedia wrote:In the physics of general relativity, the equivalence principle refers to several related concepts dealing with the equivalence of gravitational and inertial mass, and to Albert Einstein's assertion that the gravitational "force" as experienced locally while standing on a massive body (such as the Earth) is actually the same as the pseudo-force experienced by an observer in a non-inertial (accelerated) frame of reference.

http://en.wikipedia.org/wiki/Equivalence_principle

I'm not quite with you. Why do you say that it doesn't apply there ?

What I mean is that if time goes slower closer to the center of a gravitational well, then the time dilation must be disconnected from the gravitational acceleration. In other words, the time dilation isn't the same anymore as in a similar situation with the same acceleration (outside a gravity well).