Squishy Hydrogel Fingers Bend in Response to Light http://ifttt.com/images/no_image_card.png

Shining a laser at a graphene-based hydrogel causes the material to bend and flex as if it has joints, a response creepily demonstrated when the shape-shifting material is molded into the shape of a hand.



via Wired Top Stories http://feeds.wired.com/~r/wired/index/~3/i4R0FOtdcGs/