Scientists Discover Magnets That Have Only One Pole...
Scientists have long speculated about the existenc... ...ese monopoles in certain rare-materials known as " spin ices ": At low temperatures, there is still some mag... ..., there is still some magnetic wiggle room in the spin ice 's lattice structure, but not a lot—the magnetic...
https://www.neatorama.com/2009/09/05/scientists-discover-magnets-that-have-only-one-pole/
