Fine Structure

Fractal Burns Through a Wood Plank

What happens when you try to conduct high voltage through a plank of wood? Fractal-like patterns in the veins of least resistance, apparently. MAKE has some video of the electricity slowly burning its way down the top of a plank of wood. The photo has a little better quality.
http://blog.makezine.com/archive/2009/01/fractal_woodburning_reveals_hidden.html

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