If the vision of Tom Krupenkin and J. Ashley Taylor comes to fruition, one day soon your cellphone - or just about any other portable electronic device - could be powered by simply taking a walk. In a paper appearing in the journal Nature Communications, Krupenkin and Taylor, both engineering researchers at the University of Wisconsin-Madison, describe a new energy-harvesting technology that promises to dramatically reduce our dependence on batteries and instead capture the energy of human motion to power portable electronics.
