Discover how to make a DIY hand-powered mobile phone charger using simple materials such as two small DC motors and a piece ...
YouTube on MSN
DIY hand-powered water pump generator | Build a mini pump & light LEDs with recycled materials!
Discover how to build a hand-powered water pump that also generates electricity to light up LEDs using everyday recycled ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results