Tired of picking things up off the floor? Want to turn your living space into a life-sized claw machine game? A new Instructable shows you how to turn a bunch of old boxes into a robotic crane arm with a 1.8-metre reach.
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.