Side-by-side comparison (VIDEO) University of Colorado at Boulder This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption On the left, nothing is visible to the naked eye. On the right, a powerful green laser helps visualize the aerosol plumes from a toilet while it’s being flushed. Credit John Crimaldi Usage Restrictions Credit must be given. 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.