(January 2, 2013 at 9:37 am)downbeatplumb Wrote: I have heard one possibility for the weakness of gravity to be the existence of extra dimensions.
Quote:In a scenario that contains a large number of extra dimensions but confines the fundamental forces other than gravity on a 3-brane, only the strength of gravity is diluted by the other dimensions. In this case, the weakness of gravity could literally be due to the large unobserved volume in extra spacetime dimensions.
http://www.learner.org/courses/physics/u...4&secNum=6
Interesting , would that then lead to a conclusion that there can't be infinite dimensions as if there were that would reduce the strength of gravity to an infinitely small force. ( i'm no physicist so apologies if my point seems dumb )