Nearly 70 teams of undergraduate engineering students showcased their capstone design projects Thursday at the University of Michigan College of Engineering's Design Expo held at the Duderstadt Center on U-M's North Campus.

A new Multidisciplinary Design minor enables undergraduates to obtain hands-on experience designing, building and testing technology systems. And the Center for Entrepreneurship's certificate program offers students an academic foundation to support their business aspirations.

Students' projects included:

• Visual aids for the blind
• A human-powered submarine
• A new and expanded transportation system for the University of Michigan
• A utility-consumption monitoring system for residential and commercial buildings
• "Slotbots," a competition that pits student-designed robotic machines against one another to move the most ping-pong and squash balls to the opposing side of a specially-designed table.
• Other projects showed off research in biofuels, clean water and more.

- Photos by Lon Horwedel | AnnArbor.com