Magic carpets hide objects in plain sight


By Jeff Hecht THE latest twist on invisibility cloaks won’t hide Harry Potter in the middle of a room, but it might just let spies conceal microphones under the rug or the wallpaper. So called “carpet cloaks” are the first technology to succeed in hiding objects by deflecting light across a range of wavelengths. Two groups described different cloaks last week at the International Quantum Electronics Conference in Baltimore,
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