Polymer Opals (IMAGE) University of Cambridge Caption Researchers at the University of Cambridge have devised a method to produce "Polymer Opals" on an industrial scale. Credit Nick Saffell/University of Cambridge Usage Restrictions Please credit to Nick Saffell/University of Cambridge 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.