Auxetic Mask (IMAGE) Carnegie Mellon University Caption A computational design tool created a pattern of perforations that enabled a flat sheet of copper to form a 3-D mask. This tool could be used to explore the possiblities of materials that stretch uniformly. Credit Mina Konaković 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.