Bogdan Popa, a graduate student in electrical and computer engineering, shows off the 3D acoustic cloak he helped design and build as a member of Steven Cummer’s laboratory.

Read: Acoustic Cloaking Device Hides Objects from Sound

A close up view of the 3D acoustic cloak. The geometry of the plastic sheets and placement of the holes interacts with sound waves to make it appear as if it isn’t there.

 

For more information, visit www.pratt.duke.edu.

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