Gravity - an accelerating frame paradox

In summary, the equivalence principle states that the Earth's gravity field is a constantly accelerating frame of reference, and for all observers on its surface, the Earth is constantly accelerating towards them. This does not mean that the Earth is physically expanding outward, but rather that it is accelerating with respect to an inertial frame of reference. The paradox of the Earth's surface appearing to accelerate towards observers without actually moving is resolved by considering proper acceleration and coordinate velocity. On a rotating platform, each point experiences centripetal acceleration, but this does not mean that the platform is physically expanding.
  • #71
ZirkMan said:
Alas, premature joy. That insight fails to explain other many important aspect that I have not included. Sorry, I really don't want to frustrate you anymore (enjoy nismaratwork), I heed your advice and will report back only after I have learned everything that you have recommended or mentioned.

A wise choice...

[PLAIN]http://www.smileyshut.com/smileys/new/emot67.gif
 
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