(VIDEO) University of Bath This video is under embargo. Please login to access this video. Caption Video clip demonstrates the difference between fluorescent thread (leaves) and phosphorescent thread (flowers) when under visible light, UV light and in the dark. Credit Northeast Forestry University Usage Restrictions None 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.