The animation below is generated with these 24 rows of Mathematica code: http://pastebin.com/TNmbLzsS
Matt Henderson has a great blog with more stuff like that! If you are interested in #circles #mathematics #animations you should check his blog:
(this specific animation: http://blog.matthen.com/post/15481855128/if-you-roll-a-circle-inside-one-3-times-its-size)
Matt, I know you probably won't see that here but you should join Google+ with these great circles you are creating ;)
and thanks a lot for pointing us to Matt and showing us that the post we have previously reshared was just a copy of the original blog post without giving any credit.
It's a shame to see such behavior here on Google+. Sorry for supporting that by a reshare (which is deleted now).
Thanks also to for the reference to "Circular Gallifreyan" and to for the reference to "a lo-rez Mandelbrot Set" in the first post we had. Sorry guys for deleting also your comments by deleting the post.