+ - Bessel beam "tractor beam" concept theoretically demonstrated->
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cylonlover
cylonlover writes "Last year, NASA revealed it was evaluating three potential “tractor beam” technologies to deliver planetary or atmospheric particles to a robotic rover or orbiting spacecraft. At the time, the third of these, which involved the use of a Bessel beam, only existed on paper. Researchers at Singapore’s Agency for Science, Technology and Research (A*STAR) have now proven the theory behind the concept, demonstrating how a tractor beam can be realized in the real world – albeit on a very small scale."
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Bessel beam "tractor beam" concept theoretically demonstrated