Flexible Building Blocks (IMAGE) American Friends of Tel Aviv University Caption To demonstrate that any pattern can be produced on a cube's surface, researchers developed a cube of 10x10x10 centimeter blocks on which a smiley face appears when the cube is compressed. Credit Corentin Coulais 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.