it's due to the magnetic north and south centripetal vortex pulling atoms together into their tightest formation. the circular shape is actually hexagonal. check out electric field lines on facebook to get more info. it's the nature of magnetism. not gravity.
Slashdot Mirror
it's due to the magnetic north and south centripetal vortex pulling atoms together into their tightest formation. the circular shape is actually hexagonal. check out electric field lines on facebook to get more info. it's the nature of magnetism. not gravity.