Gravity Fan: Cooling for your room without electricity

This is my first experiment of the gravitational converter.\r
High transmission gear ratio, and heavy weight. Thats all!\r
My first machine only shows this untapped energy source.\r
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Transmission gear ratio: 1:520\r
Starter weight: 940g\r
Height: 125 cm\r
Running time: 5 min 31 sec\r
Average RPM: 1024,5\r
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Thanks for your watching!\r
See You soon! :)\r
Blade