These are pretty insane!

http://i.imgur.com/xutKlx1.gif

http://i.imgur.com/ET5b49q.gif

http://i.imgur.com/peUNcIQ.gif

http://i.imgur.com/TdYJ6q2.gif

http://i.imgur.com/ysbMgCM.gif

http://i.imgur.com/9WDRZCR.gif

http://i.imgur.com/wN5xpGi.gif

http://i.imgur.com/gL0U75t.gif

http://i.imgur.com/VfVzU7t.gif

Beautiful Mathematical GIFs Will Mesmerize You | IFLScience (http://www.iflscience.com/physics/beautiful-mathematical-gifs-will-mesmerize-you)

Good stuff. Reminds me of playing with a Spirograph as a kid.

Good stuff. Reminds me of playing with a Spirograph as a kid.

They still make those. I bought my kid one a couple of years ago and she loved it.

Outstanding. Thank You.

Trippy. Thanx.