you always gots to try to get the last word in, that much I've seen, and its ok, the one thing we have in common is that god made us all different, and we need to be ourselves.
But, I wasn't talking about the spin flipping of protons. Although I shouldn't have to repeat what I wrote, I might now because apparently some don't appreciate the difference between magnetic domains and protons. The operative word was:
present in the body.
Which, your posting and those of others had neglected to mention.
Alignment of the domains in magnetite is rather permanent, until the Curie temp is reached.