Schwarzite 1 (IMAGE) Rice University Caption From left, Rice University researchers Chandra Sekhar Tiwary, Seyed Mohammad Sajadi, Peter Owuor, Pulickel Ajayan and Robert Vajtai hold samples of 3-D printed schwarzites, porous blocks based on complex mathematical models created in the 19th century and further developed in the 20th. The materials retain their strength at any scale, from the nano to the macro. Credit Jeff Fitlow/Rice University 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.