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Instructables.com

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  Flashlight with no batteries

  Posted: August 8th, 2010, 12:47pm MDT

  This is a simple method to make a flashlight that will last forever. It uses a small stepper motor to generate energy and many capacitors for keep it stored for several seconds. Ps: I'm from Argentina so let me know any grammar mistake. Materials Most mate...
  By: brunoip
  
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