David Cassidy and Allen Mills, UCR (IMAGE) University of California - Riverside Caption David Cassidy (left) is an assistant researcher working with Allen Mills (right), a professor of physics at UCR. Credit UC-Riverside 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.