[net.physics] Help - Extra Dimensions

stekas@hou2g.UUCP (J.STEKAS) (04/27/84)

>>                                                  There is something
>>upsetting in the idea of postulating higher dimensionality without being
>>forced to..

This reminded me of the calculation of the fine structure constant from
"first principles".  If one takes the ratio of the volume of the unit
5-sphere to the volume of the unit 7-sphere the result is the fine
structure constant (~1/137) to 5 or 6 places.  (First order?!)

Of course, 5 and 7-spheres are picked just because they work and not
for any other reason, but the result is interesting - well amusing anyway.

                                                Jim