Elon Musk’s comments were made in an interview with New York-based scientist Neil deGrasse Tyson, who added that computers could choose to breed docile humans and eradicate the violent ones.
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.