(N.Morgan) This amazing invention makes it possible to make light, by hanging a bag of gravel or sand and gravity does the rest. Power is generated as the bag falls slowly to the ground and the rate is adjustable depending on your power requirement. This is a wonderful innovation for those who live in the rural parts of Africa off the grid. I was also thinking in a survival situation, this could be a real gem!
Read more about New Light Powered By Gravity Alone - Could Revolutionize Lighting For Millions! (Video)
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