It’s time once again for National Robotics Week in the United States. Hundreds of local events are planned by robot clubs, schools, libraries, museums, and other groups throughout the week of 6-14 April.
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.