Bubble Jet (IMAGE) Massachusetts Institute of Technology Caption New study on water jets impacting liquid droplets resembles Harold “Doc” Edgerton’s high-speed photos of a bullet fired through an apple. Analysis could help tune needle-free injection systems. Credit Courtesy of researchers, and Tiny Giants. Usage Restrictions Images are made available to non-commercial entities, press and the general public under a Creative Commons Attribution Non-Commercial No Derivatives license. You may not alter the images provided, other than to crop them to size. A credit line must be used when reproducing images 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.