Aeroacoustics (2 of 2) (IMAGE) Georgia Institute of Technology Research News Caption In a GTRI wind tunnel, senior research engineers Rick Gaeta, left, and Gary Gray check a propeller that has been attached to a dynamometer for testing. Credit Georgia Tech Photo: Gary Meek 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.