Nuisance noise silenced by an acoustic cloak

Researchers in Spain have proven that metamaterials, materials defined by their unusual man-made cellular structure, can be designed to produce an acoustic cloak - a cloak that can make objects impervious to sound waves, literally diverting sound waves around an object.

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<p><a href="http://www.physorg.com/news132554390.html">Nuisance noise silenced by an acoustic cloak</a></p> <p>Researchers in Spain have proven that metamaterials, materials defined by their unusual man-made cellular structure, can be designed to produce an acoustic cloak - a cloak that can make objects impervious to sound waves, literally diverting sound waves around an object.</p>