Floppy materials (IMAGE) Universiteit van Amsterdam Caption Two combinatorial mechanical metamaterials designed in such a way that the letters M and L bulge out in the front when being squeezed between two plates (top and bottom). Designing novel metamaterials such as this is made easy by AI. Image: Daan Haver and Yao Du. Credit UvA Usage Restrictions Mention scientists License Original 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.