Layered material (IMAGE) Princeton University, Engineering School Caption The researchers created beams with alternating layers of hexagonal cement tiles and thin polymer. Credit Sameer Khan/Fotobuddy Usage Restrictions non-commercial use 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.