Photo 1 (IMAGE) National University of Singapore Caption (From right) Researchers from the Acoustic Research Laboratory at the NUS Tropical Marine Science Institute Dr Hari Vishnu, Associate Professor Mandar Chitre, and Mr Abel Ho, are part of the team behind the development of the compact sonar. Credit National University of Singapore Usage Restrictions NA License Original 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.