I guess the law of physics that you're thinking about is the
conservation of energy. It says that the total amount of energy doesn't
change. An electron which 'spins' forever keeps the same magnetic field
forever, and keeps the same energy forever. I also keeps the same
angular momentum, another conserved quantity.
I think you may have the impression that the electron is somehow
sending out waves of energy, without losing any. That would violate
conservation of energy, but it's not what happens.
I suppose that nonetheless you could say that the electron
behavior, or even any of the conservation laws themselves, could be
taken as 'a miracle, sign, or wonder'. So could any aspect of nature.
It's a matter of taste.
Mike W.
(published on 10/22/2007)