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New invisibility cloak combines metamaterials and fancy electronics to be thinner, lighter, more invisible
2013-11-11 18:00:45| Extremetech
A researcher at the University of Texas at Austin has devised an invisibility cloak that could work over a broad range of frequencies, including visible light and microwaves. This is a significant upgrade from current invisibility cloaks that only cloak a very specific frequency -- say, a few hertz in the microwave band -- and, more importantly, actually make cloaked objects more visible to other frequencies. The UT Austin cloak would achieve this goal by being active and electrically powered, rather than dumb and passive like existing invisibility cloaks.
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