Microjet in Open Air (video) The Optical Society Loading video... Caption The movie shows the injector firing into open air without a skin or gel target. The jet, which is approximately the diameter of a human hair, seems dispersed but a target would be placed within the jet breakup distance of a few millimeters, so splash-free injection is achieved. Credit Video courtesy Jack You/Seoul National University. Usage Restrictions None 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.