Gravity Fan: Cooling for your room without electricity

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

• #فناوری_و_رایانه
• #gravitational
• #gravitation
• #gravity_wheel