Computer Model (IMAGE) Duke University Caption The 'meta-mirror' was carefully engineered to make a sound wave coming straight at it reflect at a different angle with zero scattering losses. Credit Steve Cummer, Duke University Usage Restrictions None 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.