Acoustic Metadevice (image) University of Bristol Caption This is an acoustic metadevice capable of manipulating the acoustic space and controlling the propagation of waves. Credit Image courtesy of Mihai Caleap, University of Bristol, copyright © 2014 Usage Restrictions The image is for single-use only and should not be archived. 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.