World's first 3-D acoustic cloaking device hides objects from sound
Tuesday, March 11, 2014 - 16:32
in Physics & Chemistry
(Phys.org) —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.