Shrinking a quarter
Thursday, August 20, 2009
It needs to be said: this entry is most certainly, certifiably in the "do not try this at home" category. Please don't.
A massive electrical current creates a magnetic current in the coil, which creates an opposing magnetic field in the coin. The two fields cause the coin's material to contract and compact -- no volume or weight is lost, but the coin is smaller in diameter and thicker.
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But please do drool over electromagnetic forming with me. There are folks out there with the gear, the time and the wherewithal to shrink coins. As for motive, what's better than "because I can"?
Hackerbot Labs in south Seattle (sample mottos: "Like prom night, for your warranty" and "Trespassers will be used for scientific experimentation") and Intellectual Venture Labs posted a couple of video gems on the coin shrinking process.
Coin Shrinking from Jeremy Ruhland on Vimeo.
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Labels: DIY, science, technology
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