Microrolling robots (VIDEO) Lehigh University This video is under embargo. Please login to access this video. Caption This visual captured by the Laboratory for Particle Mixing and Self-Organization at Lehigh University, shows that a pile of microrolling robots will spontaneously flow like granular media—but uphill. Credit Laboratory for Particle Mixing and Self-Organization, Lehigh University Usage Restrictions Credited, contextual use only. 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.