A group of engineers at Harvard University have built a robot that can assemble itself into a working machine and walk away without human intervention. Inspired by the art of Japanese origami, the contraption uses panels of memory plastic that contract like muscles when heated. "Getting a robot to assemble itself autonomously and actually perform a function has been a milestone we've been chasing for many years," said project lead Robert Wood. The team thinks the origami robot could one day be used on the battlefield. Get more at The Guardian.