Nanodrumming of Graphite (IMAGE) California Institute of Technology Caption Nanodrumming of graphite, visualized with 4-D electron microscopy. Credit Nano Letters; images produced at Caltech 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.