ALPHABET 3 (IMAGE) Rice University Caption A picoindenter approaches the junction of a branched nanotube in an experiment carried out by Rice University scientists. The researchers discovered these nanotube "letters" handle strain to varying degrees depending on their form. Credit Hysitron 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.