Nanotube (IMAGE) U.S. National Science Foundation Caption This photo shows a view down the middle of a boron nitride nanotube. Credit Vin Crespi, Pennsylvania State Physics. Distributed under the Creative Commons license http://creativecommons.org/licenses/by-sa/2.0/. 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.