I am crazy about solar energy and anything energy efficient. So this really got me hooked
It's so amazing how something so cheap, simple and natural can do what seems to be so complex in the developed world.
I think if more funds are spent on researching this cool Gadget, it could be the next big thing.
It's *energy efficient*
It's cheap to produce ( just cardboard, foil paper and ropes-I think)
Enjoy!
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