[ExI] Cool Physics

[John K Clark]

"spike" <spike66 at att.net> Wrote:

> John, why would making a black hole demonstrate
> addition dimensions?

If gravity always worked according to the inverse square law (1/r^2)
no matter how close two particles got there would be no hope in 
making a Black Hole, you'd need an accelerator the size of the
Galaxy.

However string theory says there are 7 additional spatial 
dimensions in addition to the 3 we already know about. If true then
when 2 particles get so close that they approach the size of those
small dimensions then gravity is no longer a inverse r^2 law but a
inverse r^10 law; push the two particles just a little bit closer and
the gravitational force between them becomes enormously
stronger, and you have a shot at making a Black Hole.

At these small sizes gravity would be just as strong as the other 
forces of nature, only at larger sizes is gravity so much weaker than
the other forces because it leaks out into the other 7 dimensions 
and gets diluted. The other forces don't go into these other 
dimensions and so don't get diluted.

But of course nobody knows if any of this is true. Time will tell.

  John K Clark