DIY Machine Makes 3D Carvings Of Magnetic Fields [Video]

You can go the simple iron filings on a white piece of paper route if you want to see the invisible fields surrounding a magnet. But I prefer this DIY contraption which carves 3D foam sculptures of them instead. More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/dUiMHAph_dk/diy-machine-makes-3d-carvings-of-magnetic-fields

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