Walking Paper

Science is awesome!  By using a laser, check out what this graphene-based paper can do.

Originally, I found this over at Gizmodo.  I also found a little more at nature.com.  It is reported that this technology may be used for “robot muscle” and several-molecule-thin popup displays.  It works by a laser (or heat) forcing moisture out of the material.  When dry it folds one way and when moistened by humidity in the air it bends the opposite.  I wonder if it will lead to self-folding origami?