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Submission + - Tractor beam built from rings of laser light

Sven-Erik writes: Stand aside, Wesley Crusher: there's a new tractor beam on deck that pulls objects using nothing more than laser light. The device has already grabbed NASA's attention as it could one day prove useful on space missions.
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Tractor beam built from rings of laser light

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"The number of Unix installations has grown to 10, with more expected." -- The Unix Programmer's Manual, 2nd Edition, June, 1972

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