Example of visualization of exhaled air (IMAGE) University of Tsukuba Caption Example of visualization of exhaled air (aerosol particles) emitted from the mouth of a moving mannequin by a particle tracking velocimetry system. The mannequin is moving from the right side of the screen to the left. Credit University of Tsukuba Usage Restrictions Unauthorized use is prohibited 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.