One-Way Sound Transmission

An acoustic circulator makes sound waves travel in one direction

Innovator: Andrea Alù  
Age: 35 
Professor of electrical and computer engineering, University of Texas at Austin

Form and function: Sound waves tend to travel every which way, meaning if you can hear something, you can usually be heard. This acoustic circulator focuses sound waves so they travel in one direction and blocks them from moving back.

    Before it's here, it's on the Bloomberg Terminal.
    LEARN MORE