Dor Ben-Amotz, Purdue University (IMAGE) Purdue University Caption This is Dor Ben-Amotz. Credit Purdue University photo/Steve Scherer 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.