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October 29 2012

Real-life tractor beam developed at NYU


Physicists at New York University have demonstrated a micro-tractor beam capable of pushing and pulling molecules.

The system by David B. Ruffner and David G. Grier consists of a set of superimposed Bessel beamsóbeams which do not spread and are capable of self healing after partial obstructionówhich is able to push and pull tiny objects along its length.

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