Electron Wheel by MagusLucius
Inspired by a neat little trick involving photons and filter.
Comments
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MagusLucius 9th Feb 2016
I meant to add: Works because of the way pbcn triggers - Fast from top to bottom and left to right, slow from bottom to top and right to left - so by trggering the pbcn and then immediately stopping it on the slow side, you create a rolling backfire.