If y’all think windmills are cool, think about a helicopter. How much gas is needed to spin the thing. Then you think backwards: how fast the windmill has to spin (how slow but big) to match the gas engine. mmmmmk?
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Youre premise is wrong.
The size/mass and slow movement is also creating MASSIVE torque.
That spins a gear box that amplifies speed and generates electricity.
Yes. This is true. When you apply electrical loads to a turbine, the load would create torque, thus, slowing down the turbine.
Yes.
Newtons law.