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Infinite energy?! 
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#1
Dec1212, 04:25 AM

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I am currently studying angular momentum and precession. If you suppose that you had a frictionless gyroscope with the flywheel spinning, thus precessing, could you harness the torque (converted to kinetic energy) generated about the axis of precession? since the force is generated by gravity it seems possible to me.. but then again that fails logic ____; can someone explain to me why i am wrong?



#2
Dec1212, 04:49 AM

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P: 2,470

If gyro applies torque to generator, generator applies opposite torque on gyro. What is the direction of this torque vector? How will the gyro respond to torque in that direction? If you answer these questions correctly, it will become clear why this resource of energy is finite.



#3
Dec1212, 05:06 AM

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#4
Dec1212, 05:15 AM

Sci Advisor
P: 2,470

Infinite energy?!
Precession does continue, actually. Keep in mind that gyro does not rotate in direction of torque. That's kind of the whole reason there is precession. So figure out where the net torque points and new direction of precession.



#5
Dec1212, 01:24 PM

P: 5




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