Energy Sink

[philip]

Can anyone tell me, if energy is neither created or destroyed (they say), where does the energy go when torque is applied to forcibly precess a gyroscope. When torque is stopped the gyroscope will stop precessing though the angular velocity of spinning gyroscope does not alter if good bearings are used, no energy is lost or gained here. Neither does heat appear or disappear anywhere in/on the gyro/gyro shaft, again assuming good bearings are used. I could install some kind of high rpm gyro on a motor shaft, with an axis perpendicular to the motor shaft, power it up and have loads of energy output from the motor just, disappear (not that this is the purpose of this site to determine ways to make energy disappear).  Or have I missed something

Phil

[Low-Q]

Hi,

A gyroscope is as far as I know a spinning mass where there is almost no loss. Needle bearings, great mass, relatively great diameter (Together this is high moment), extremely high rpm. These gyroscopes are however to day old fashion as these mechanical gyroscopes are replaced by electronics.
The energy loss, however, is going through the needle bearings. How great this loss is, I don't know, but the relative energy loss versus the energy stored in the spinning mass, is quite insignificant and the gyroscope will spin for a long time. As soon as you try to extract more energy out of a gyroscope, it will use shorter time to stop. The energy you put in to start the gyroscope, minus the sum of all losses, is the energy you can get out of it. Hence no overunity.

Br.

Vidar

[lancaIV]

Probably this,the images, gives some inspiration:

http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=JP56029066&F=0
GO TO "Original document"

S
  dL

[philip]

Thanks Low-Q. Yes I don't expect that there would be overunity however I am still thinking that there is negative - below zero efficiency to this. If you think about holding a spinning bicycle by the axle the wheel it resists any effort to change its axis of rotation. I am not sure that the energy used to change this axis translates to an increase in the rpm of the spinning wheel or appears as heat in the bearings. If you try it the wheel will eventually stop spinning, as it would due to friction, even as you continue to apply torque (work). I have included a GIF to show this. The reason this interests me is that if energy can be made to disappear perhaps this is something that could be reversed by mechanical means to obtain energy, and a lot of energy it could be.

Phil

[electrostatic]

Can anyone tell me, if energy is neither created or destroyed (they say), where does the energy go when torque is applied to forcibly precess a gyroscope. When torque is stopped the gyroscope will stop precessing though the angular velocity of spinning gyroscope does not alter if good bearings are used, no energy is lost or gained here. Neither does heat appear or disappear anywhere in/on the gyro/gyro shaft, again assuming good bearings are used. I could install some kind of high rpm gyro on a motor shaft, with an axis perpendicular to the motor shaft, power it up and have loads of energy output from the motor just, disappear (not that this is the purpose of this site to determine ways to make energy disappear).  Or have I missed something

Phil

are you sure the gyro wheel would not heat up?