Hole-y Superconductor (IMAGE) Brown University Caption Tiny holes punched into a high-temperature superconducting material revealed that Cooper pairs, electron duos that enable superconductivity, can also conduct electricity the way metals do. Credit Valles lab / Brown 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.