U.S. Army is banning service members from using Chinese-made DJI drones due to “increased awareness of cyber vulnerabilities,” according to the publication Defense One.
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.