Over the past couple of months, Google’s parent company Alphabet has been looking to offload its robotics division, Boston Dynamics, as it seeks to divert it
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.