Watch Drive.ai’s self-driving car drive through the dark, rainy streets of Mountain View, California, flawlessly handling a busy four-way stop sign, a car that cuts it off, and a broken red light.
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.