A drone that can carry people will begin “regular operations” in Dubai from July, the head of the city’s Roads and Transportation Agency has announced at the World Government Summit.
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.