MIT Additive Manufacturing Class (2 of 3) (IMAGE) Massachusetts Institute of Technology Caption Students in John Hart's Additive Manufacturing class square off in a bridge-building competition to see who can design and print the sturdiest bridge. Credit Photo courtesy of John Hart 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.