It's a one-way street for sound waves in this new technology

Wednesday, April 3, 2019 - 13:20 in Physics & Chemistry

Imagine being able to hear people whispering in the next room, while the raucous party in your own room is inaudible to the whisperers. Researchers have found a way to do just that -- make sound flow in one direction -- within a fundamental technology found in everything from cell phones to gravitational wave detectors.

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