MagLev in Action (VIDEO) Harvard University 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 The drug detection device can separate at least seven different substances, from sugar to heroin, at once. Credit Christoffer Abrahamsson and Michael Fink Usage Restrictions With proper credit 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.