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Re: OT: 4D

From:Mark J. Reed <markjreed@...>
Date:Sunday, February 27, 2005, 19:36
On Sun, Feb 27, 2005 at 03:07:56PM +0000, Simon Clarkstone wrote:
> Actually, this is part of a larger phenomenon, which is that forces > weaker than inverse-square do not have stable orbits. Both gravity > and EM would be inverse-cube in 4D, so there would be no stable > planetary orbits. (Actually, EM as we know it wouldn't exist, due to > lack of cross-products, but could be replaced by something even more > bizarre.)
Note that there is at least one theory which postulates that the difference in strength among the fundamental forces originates in different dimensions of propagation within our universe: some propagate only through the spacetime we perceive (3 space + 1 time dimensions), but gravity propagates through higher spatial dimensions too, which is, in this hypothesis, the reason it's so much weaker than the others. -Marcos