News From the Field

Bats do it, dolphins do it--now humans can do it, too


July 6, 2015

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Bats have been using sonar to navigate and communicate for ages and now humans can do the same, thanks to lightweight and efficient ultrasound microphones and loudspeakers developed by University of California, Berkeley, physicists. The devices owe their flat frequency response to graphene, which makes a stiff and responsive diaphragm far superior to those in today's ultrasound receivers and transmitters. Biologists can even put one on a bat to record its nightly ultrasonic conversations.Full Story

Source
University of California, Berkeley

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