CNT Forests with Low and High Density (IMAGE) American Institute of Physics Caption Scanning electron microscope images are of CNT forests with low and high density. Credit Hisashi Sugime/U.Cambridge 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.