[Jewelry making - Article 00635] - Re: [Orchid] Weird metal-related question

[RLISFOLKS]

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>     A regular refrig magnet would not have the power needed to
>     determine if there is ferrous content.  I would spend a few dollars
>     and buy a good strong "rare earth" magnet.  These magnets are
>     generally so strong that your can attach them to a refrigerator and
>     not be able to pull them off again. 

    That reminds me of the magnets in hard drives. My husband is a
    computer geek, so he's been taking apart old hard drives recently.
    They have these magnets in them that are intense! He does this trick
    where he puts one on top of his wrist and the other one on the
    bottom, and they hold. When I tried it, I tried to slide the thing
    off, and wound up with one heck of a blood blister from the pinch!! 

    I wonder if the hard drive magnets are similar to the rare earth
    magnets? I think we'd have to pry one off the fridge.... 

Dawn

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