Electricity-Generating Backpack
Image: Lightning Packs Lightning Packs is a com... ...Lightning Packs is a company that is developing backpacks that generate electricity with the motion of thei... ...hem becomes critical. Soldiers carry eighty pound backpacks , up to twenty pounds of which are spare batteries... ...ounds of which are spa...
https://www.neatorama.com/2009/10/01/electricity-generating-backpack/
