Soccer Ball That Is Also A Portable Generator...
(YouTube link) Many children around the world... ...n't have electricity but they do play soccer. The soccket is a soccer ball that captures energy with every... ...s of play produces three hours of light. The sOccket harnesses the kinetic (motion) energy of the socc... .... After play, an LED lamp can...
https://www.neatorama.com/2011/07/16/soccer-ball-that-is-also-a-portable-generator/
