Drag Sail Deploying (IMAGE) Purdue University Caption Time-lapse footage shows the drag sail deploying in the atrium of Neil Armstrong Hall of Engineering at Purdue. Credit Purdue University video/Erin Easterling Usage Restrictions None License Licensed 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.