Minimizing cracking (IMAGE) Princeton University, Engineering School Caption Inspired by nature, researchers at Princeton have created material that surpasses cement in crack resistance and ductility. Photos by Sameer A. Khan/Fotobuddy 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.