Porous structures (IMAGE) Princeton University, Engineering School Caption Designed to mimic bone, wood and other natural materials, the porous objects are lighter than traditional products and can be strategically inserted into structures to provide higher stiffness in areas with high demand. Credit Paulino et al. 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.