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Boing Boing Video (boingboingvideo.com) teamed up with Theo Gray and Popsci.com to produce this video that demonstrates how you can mold steel with electrochemical machining, using a soft, cheap piece of tin -- without any physical contact. Theo is the author of the book Mad Science, in which many other experiments like this are featured.

Boing, theo, gray, popsci, engineering, electrochemical, science, madscience, experiment, howto, diy, dangerous, pyrotechnics, machining