The Age of Marvels is not yet done! I now have something to share with my grandson. The magnetic monopole has been found! [Link]
I suppose I should explain why this is important. I probably won’t. Some things don’t explain well. But I shall try. Naturally occurring magnets are dipoles. They have a Nawth and a Sowth end – like the nation. But if one slices/saws/splits a magnet in two, one of two things happens: (1) you end up with two of each – two dipoles; or (2) none because you bash the magnetism. And no matter how small you cut the bits this always applies.
But what if you could? Cut a magnet in half and have two things – half magnets – that are anisotropic: one end is magnetic and the other end isn’t. Those are monopoles, literally one pole transliterated. And that’s why this is important.
Paul Adrien Maurice (PAM) Dirac, the daddy rabbit of Fermi-Dirac statistics (with Fermi), and quantum foam, and relativistic quantum mechanics, and …….. predicted monopoles back before me, and my daddy had no attention span for the matter. And people have been looking for them for years. And now we have them. And now – maybe – we can begin to build a real engineering of magnetism. No, not just generators and motors but really useful things.
And it happened in my lifetime. I was a kid when we landed on the moon. That was just Yankee government engineering. This is science.