High-speed directed transport of water droplets at the nanoscale

…without expending any energy but simply through the patterning of graphene… potential applications include high-efficiency electricity generation
In a new study, researchers have propelled water nanodroplets across a graphene surface at speeds of up to 250 km (155 miles) per hour—which, for comparison, is about twice as fast as a sprinting cheetah. The water droplets’ ultrafast velocities don’t require any pump, but instead occur simply due to the geometric patte