While it took her 16 days to do it, Claire Lomas, who lost use of her legs in a 2007 accident, finished the London Marathon with the aid of a ReWalk powered exoskeleton from Argo Medical Technologies.
Robots clean rivers and sort waste, monitor ecosystems, and inspect renewable-energy infrastructure. But even the greenest robot has an environmental footprint.
EPFL engineers have designed acoustic cavities that convert sound waves into thrust, propelling small robots and ultralight aerial vehicles without on-board actuators or electronics.