Momentum is the quarterly magazine of the Department of Mechanical Engineering at Virginia Tech. In this issue: 3-D printing at the nano-scale | QL+ signs on with Senior Design | Corina Sandu elected SAE Fellow | Brian Vick elected to NC State MAE Hall of Fame | Rolls-Royce Ph.D. Day | About Alumni with Nicholas Des Champs | more stories, photos and video from the Virginia Tech Mechanical Engineering Department.