Imagine being able to hear people whispering in the next room, while the raucous party in your own room is inaudible to the whisperers. Yale 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.
from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/2TQg1so
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