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The worlds first acoustic invisibility cloak has been created by Duke University

2014-03-12 15:09:44| Extremetech

Duke University has built the first 3D omnidirectional acoustic invisibility cloak. The cloaking device, which takes the form of a pyramid of perforated plastic, is hidden from sound waves striking it from any direction -- if you fired some sound waves at the device, using sonar for example, you would see nothing; not the cloak, and not the object beneath it. This has obvious applications in the military, but also in architectural acoustics.

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