Power your gadgets with the wind using a lightweight, home-made turbine. Depending on where you are in the Northern Hemisphere, it's either getting to the end of the camping season, or finally cooling down enough to enjoy being outdoors the whole day. So it might be the perfect time to build the Camping Wind Turbine, a tiny, portable propellor which will charge small gadgets.
The turbine was put together by “ineverfinishanyth” over on Instructables, and is incredibly simple in concept, although you'll need to do some drilling and sawing to put it all together.
Gadget Lab, Home-Made Camping Wind Turbine
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