Nanoruler (IMAGE) Massachusetts Institute of Technology Caption The tool -- called a nanoruler -- used to make finer patterns of lines over larger areas than have been possible with other methods. Credit Raif Heilmann, MIT 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.