> << Your comment regarding contemporary magnets being too powerful made
> and it seems it may be rather difficult to acquire suitable
> weaker ones. >>
> the nature of the physical univese (macroscopicaly) is entropic making weak
> magnets is no biggy heat a magnet or apply lots of physical force (hit it)
> disrupts the alignment of the atoms and weakens the field the effects are
> sometimes temporary so the longer you apply heat the longer it will be weak.
> just make sure not to over do it
Heating a magnet well above its Curie temperature will permanently
demagnetize it. NEVER attempt to demagnetize a high power rare-earth
magnet by striking it. They are typically very brittle and can shatter
with nearly explosive force. You could be injured by sharp pieces of
magnetic shrapnel.