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Dan's Conjoined Circles的副本

Dan Anderson started my Monday off with this hypnotic image: http://recursiveprocessing.tumblr.com/post/134722191794/twin-circles-1x-2x-and-2x-1x-play-off-of-twin Off to the GGB cave! This is a great structure to play with, and I really had to think about how to set the period so that it always completes the pattern.
More GGB at bit.ly/mh-ggb