Nanoposts (IMAGE) U.S. National Science Foundation Caption This is an SEM image of the diamond nanoposts. Each one is approximately 100 nm wide and 200 nm tall. A nanometer is one billionth of a meter. Credit Jennifer Choy, School of Engineering and Applied Sciences, Harvard 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.