Hexaflexagons

In geometry, flexagons are flat models, usually constructed by folding strips of paper, that can be flexed or folded in certain ways to reveal faces besides the two that were originally on the back and front. Flexagons are usually square or rectangular (tetraflexagons) or hexagonal (hexaflexagons).

Not only is this really cool, sort of a geometric origami, but there’s also a very powerful reason I’m posting about it, you’ll see at the end of the post.

Hexaflexagons part 1

http://www.youtube.com/watch?v=VIVIegSt81k

Hexaflexagons part 2

http://www.youtube.com/watch?v=paQ10POrZh8

Hexaflexagon safety guide

http://www.youtube.com/watch?v=AmN0YyaTD60

FLEXAGON FOOD??? Mexaflexagon ftw!

Anyway, here’s the reason I’m posting this; aside from these videos being really informative and entertaining I really need to know where this gif is from, as in where is the original video: http://i.imgur.com/2Y1dk.gif

That’s a big flexagon, and me being a comic geek I just love it, it needed just one or two more symbols to have the regular JLA :D.

Do you know where I can find that video? If so, post it in the comments.