Brian Mazzeo, Brigham Young University (IMAGE) Brigham Young University Caption BYU professor Brian Mazzeo tests acoustic-based measurement techniques in his lab by dripping water on a concrete surface. Credit Mark A. Philbrick/BYU Photo 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.