World Maker Faire NYC 2012 is September 28 & 29 at the New York Hall of Science. Visit http://makerfaire.com for more information. An off-road machine from…
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.