[Jewelry making - Article 00651] - [Orchid] Metal Shrunk by Powerful Magnetic Field?

[Nona Boatright]

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    I got an e-mail from Edmund Scientifics selling a quarter-dollar
    which had been shrunk by magnetic field. Has anyone ever heard of
    this?! 

    Ad and link are below (photo on website): 

        "Original Eagle Shrunken Quarter - This incredible novelty is a
        real quarter shrunken by high-velocity metal forming. An
        invisible, yet extremely powerful magnetic field pulses the coin
        with a shock wave that forces it to change physical shape in the
        blink of an eye. Up to 100,000 amperes of current is forced
        through the work coil wrapped around the coin and it is
        eventually explosively destroyed in the shrinking process,
        leaving only the shrunken coin behind. The resulting quarter
        maintains the same mass, volume, and density, but the size is
        drastically reduced!" 

        http://tinyurl.com/343zp6
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