These Boots Were Made for Charging...
is developing a new kind of boot for our armed forces. Funded by a DARPA contract,
the heel of the boot has layered polymers in honeycomb form that generate electricity
as the soldier walks. At normal walking pace, the prototypes generate about half
a watt, but two watts is not far off. Some day in the near future 20-pound battery
packs for personal communications and navigation gear will be a thing of the past.