Peeling the Hull (IMAGE) Bar-Ilan University Caption Dr. David Eitam peeled the hull of wild barley grains in a narrow conical mortar with a long wooden pestle during the experiment. Credit Sara Katzburg 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.