The robots are not taking over – the economy continues to generate more jobs By Andrew Sentance Since the start of the industrial revolution in the 18th century, there have been fears that advances in technology would create unemployment.
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.