Tech | February 02, 2009 | 23 comments

A Real Cloaking Device

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It's like something out of a science fiction novel or a Harry Potter book. Engineers from Duke University have constructed a device that can "cloak" items placed on a mirror surface.

First designed in 2006, the new version of the device is a more sophisticated and complicated design that can cloak a wider variety of waves. To create the new device, the researchers developed a new set of mathematical algorithms which, in turn, are used to engineer artificially structured "metamaterials" that have properties not found in natural materials. The metamaterials are what form the cloaking structures, which bend electromagnetic waves, like light, around an object, so it appears the object is no longer there.

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