Researchers at University of Maryland at College Park have come up with a new technique that has the potential of making many science-fiction scenarios, realities of everyday life.
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Using a time-reversal technique, the team has discovered how to
transmit power, sound or images to a nonlinear object without knowing
the object 's exact location and without affecting objects around it.
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That means one day you can charge your cell phone remotely without any cable, without even knowing where your cell phone is! and many other cool applications! Learn more here.