UC-Light (image) University of California - Riverside Caption Networking via light could be especially helpful in hospitals, airports and other environments where radio frequencies can interfere with specialized equipment. Credit Zhengyuan Xu, 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.