3 Amazing Hand Powered Tools | Life hacks

3 Amazing Hand Powered Tools | Life hacks
  GOODTECH - Creativity and Science
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Make 3 amazing hand powered tools like Mobile charger, flashlight and a mini generator. These are 3 amazing lifehacks of a DC motor that generate energy when rotated. 1st: Hand Powered Mobile Charger Make a hand powered USB charger for a mobile phone usi

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