Shoe Harvester (IMAGE) University of Wisconsin-Madison Caption The UW-Madison researchers' startup company, InStep NanoPower, partnered with Vibram to develop a first practical footwear energy harvester. The harvester captures energy produced by humans during walking and converts it into electrical power ready to be utilized by mobile electronic devices. This working prototype uses what the UW-Madison researchers call "energy generation tube" technology, which predates their "bubbler" approach. Credit Tom Krupenkin/InStep NanoPower 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.