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Innovation

Acoustic Cloaking Device Hides Objects from Sound

Duke engineers build world’s first 3-D acoustic cloaking device
Using little more than a few perforated sheets of plastic and a staggering amount of number crunching, Duke engineers have demonstrated the world’s first three-dimensional acoustic cloak. The new device reroutes sound waves to create the impression that both the cloak and anything beneath it are not there.

The acoustic cloaking device works in all three dimensions, no matter which direction the sound is coming from or

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