Bat Lab (IMAGE) University of Washington Caption A panoramic view of the "bat lab" at Johns Hopkins University taken during experiment preparation shows the multiple cameras and ultrasonic microphones used to capture a bat's sonar signal during flight. During the actual sonar experiments the cables were tidied up and all exposed metal surfaces were covered by felt. Credit Benjamin Falk/Johns Hopkins University Usage Restrictions With credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.