Having stomach troubles? Try swallowing an origami robot

Has your child swallowed a small battery? In the future, a tiny robot made from pig gut could capture it and expel it. Researchers at the Massachusetts Institute of Technology are designing an ingestible robot that could bpatch wounds, deliver medicine or dislodge a foreign object. They call their experiment an "origami robot" because the accordion-shaped gadget gets folded up and frozen into an ice capsule. "You swallow the robot, and when it gets to your stomach the ice melts and the robot unfolds," said Daniela Rus, a professor who directs MIT's Computer Science and Artificial Intelligence Laboratory.