Sound Wave Researcher Dr Amgad Rezk (image) RMIT University Share Print E-Mail Caption Dr Amgad Rezk and his research colleagues at RMIT University have created a new class of sound wave -- the first in more than half a century -- in a breakthrough they hope could lead to a revolution in stem cell therapy. Credit RMIT University Usage Restrictions Only for use with credit to RMIT University. Share Print E-Mail 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.