Beginning to see the light (IMAGE) Osaka Metropolitan University Caption UV light writes the Chinese character for “light” on treated paper, which then gets erased after irradiation with visible light. A soldering iron then makes marks on treated paper that are erased with visible light irradiation. Credit Osaka Metropolitan University Usage Restrictions News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only. License Original 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.