Graphene (image) University of California - Riverside Caption Image shows graphene, which can act as an atomic-scale billiard table, with electric charges acting as billiard balls. Credit Lau lab, UC-Riverside. Usage Restrictions None 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.