UC Berkeley Science News for 07/07/2015

UC Berkeley News » Science

Bats do it, dolphins do it. Now humans can do it, too. Published  Jul 06, 2015 12:00 pm UC Berkeley physicists have used graphene to build lightweight ultrasonic loudspeakers and microphones, enabling people to mimic bats or dolphins' ability to use sound to communicate and gauge the distance and speed of objects around them.

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