[snarks_when_bored]

Magnetic monopoles aren't predicted by the Dirac equation, g_w. But a couple of years after he published his equation, Dirac did point out that the existence of magnetic monopoles could account for the quantization of electric charge. To date, no magnetic monopoles have been discovered.

[grey_whiskers]

Magnetic monopoles aren't predicted by the Dirac equation, g_w.

Yes, the old "IIRC". :-)

That is why I hedged with 'allows' rather than 'predicts'...
There are enough good links on this thread to keep me off of Free Republic for months.. :-( BTW thanks for the info on computer cleaning...I'm now surfing on Mozilla.

Merry Christmas to All, and to All a Good Night!