[Jewelry making - Article 00307] - Re: [Orchid] MRI for metal workers

[James Binnion]

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    Lots of comments on non ferrous metals being not magnetic or not
    attracted to magnets. Well this is not really the case there are
    several types of magnetism most of you are referring to
    ferromagnetism but there is also paramagnetism and diamagnetism. Many
    things we don't think of as being magnetic or being affected by
    magnets do in fact have magnetic properties. For a rather strange but
    enlightening object example go to 

    http://www.hfml.ru.nl/pics/Movies/frog.mpg 

    to see a movie of a live frog being magnetically levitated in a very
    powerful magnetic field. Because living creatures have diamagnetic
    properties this is possible. 

    But strange science aside don't assume that because the metal we
    work with is not ferrous that it will not react to the magnetic field
    in a MRI, always tell the Doctor you work with metal and there is a
    chance that you have metal particles in your body especially your
    eyes. Better safe than sorry 

Jim

James Binnion
jbin AT mokume-gane.com
James Binnion Metal Arts
http://www.mokume-gane.com
360-756-6550
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