By Prachi Patel
Reversing the direction of a quantum force could prevent nano devices from sticking together--and even make them levitate.
As mechanical devices shrink down to the nanoscale, they fall victim to a strange quantum effect that makes their moving parts stick together. But theoretical physicists at the University of St. Andrews, in Scotland, have found a way to turn that effect against itself, producing completely frictionless nanomachines.
Once again a technology that could have applications in the creation of a device such as the "Dragonfly Drones" seen in 2007
Go here for more info: http://www.technologyreview.com/Nanotech/19240/
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