“The film takes place in a dark future where robots are quickly gaining consciousness, and things go bad when a small number of them actually become sentient and kidnap a human.”
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.