Double Pendulums Are Chaotic Until They Aren't

Listen, you don't have to understand the physics of double pendulums to enjoy this video. I only have a superficial understanding, just enough to be impressed with this work. Figuring it out would be hard enough, but to chart this work into visual graphics is astounding. And the graphics are so cool, even someone with no clue about the physics of pendulums will enjoy it. (via Metafilter)