Revadim Flake (IMAGE) American Friends of Tel Aviv University Caption Tiny flake from Revadim site: Reconstruction of hand grip during use. Credit Prof. Ran Barkai, Tel Aviv University 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.