Fold-able GraphExeter Light (video) University of Exeter Share Print E-Mail Loading video... Caption Fold-able GraphExeter Light is shown. Credit University of Exeter Usage Restrictions Use with accreditation. 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.