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So Philliebot was a fail, but this chainless bicycle serves as proof that UPenn doesn't always come up short. The Alpha Bike, designed by a group of engineering students, contains an entirely internal drivetrain that allows riders to switch between fixed-gear and multi-gear setups. The simple swit...

April 29th 2011 at 9:06am 0 Comments
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Those crack backpack researchers at the University of Pennsylvania are at it again, New Scientist reports, following up their power-generating backpack with one designed simply to lighten the load on the wearer, apparently re-purposing some of the same technology from their earlier model. As with th...

December 21st 2006 at 7:07pm 0 Comments