xt writes: A recently submitted paper in arXiv claims that by using Bessel beams it is theoretically possible to pull particles towards the light source, opening up new avenues for optical micromanipulation (the direction of the force is size dependent, so it could be used for particle sorting). There is also a simpler article translated in English (original article in Greek).
IBM Advanced Systems Group -- a bunch of mindless jerks, who'll be first
against the wall when the revolution comes...
-- with regrets to D. Adams