Microbullet Hits Confirm Graphene's Strength (image) Rice University Share Print E-Mail Caption Rice University scientists fired microbullets at supersonic speeds in experiments that show graphene is 10 times better than steel at absorbing the energy of a penetrating projectile. Credit Jae-Hwang Lee/Rice University Usage Restrictions For news media purposes only. Share Print E-Mail 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.