How To Melt Your Brain With A Single Piece Of Paper

IT JUST KEEPS FOLDING.

Vi Hart’s video explains how it works (via io9). You can also find printed directions here.

Video available at: http://youtube.com/watch?v=VIVIegSt81k.

For a real treat, though, try this Flexagon creator — it’ll let you choose an image for each “face” of your Flexagon, then print simple, pre-drawn folding instructions like this:

6. Incredible, right?

Via: youtube.com