Gyroscope behaviour during 24 hours on earth

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    Earth Gyroscope
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Discussion Overview

The discussion revolves around the behavior of a precision gyroscope over a 24-hour period on Earth, focusing on its motion relative to a stationary holder. Participants explore the effects of Earth's rotation and tilt on the gyroscope's orientation and motion in different axes.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant proposes that a spinning gyroscope, perfectly balanced and free to move in all three axes, will exhibit relative motion with its holder due to Earth's rotation, assuming it is not at the poles.
  • Another participant agrees but notes that the motion in all three axes is not guaranteed, as it depends on the orientation of the gyroscope's axes relative to Earth's rotation axis.
  • A third participant suggests that because of the tilt of Earth's axis, the point on the sphere's surface (the gyroscope holder) must move in all three axes, except at the poles.
  • A later reply questions whether the tilt is considered relative to an arbitrary reference frame and suggests aligning everything with Earth's rotation axis for clarity.

Areas of Agreement / Disagreement

Participants express differing views on the nature of the motion of the gyroscope and its holder, indicating that multiple competing perspectives remain without a clear consensus.

Contextual Notes

The discussion does not resolve the assumptions regarding the reference frames or the implications of Earth's tilt on the gyroscope's behavior.

aladinlamp
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Hi

is my assumption correct ?

precision gyroscope,sitting on the table during 24 hours, perfectly balanced, with free motion in all 3 axis, while still spinning using electric drive or compressed air to maintain motion...

there should be relative motion between gyro and its stationary holder in all 3 axis( assuming I am not at the poles) but at some latitude less than 90.

gyro disk should keep orientation and holder will move with earth, but from my reference frame i will see holder stationary and gyro disk will move

gyro-5-638.jpg
AxialTiltObliquity.png
Effect-of-earth-rotation-on-Gyro-at-Equator.png
 
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Right.

Not necessarily a motion in all 3 axes, it depends on the orientation of the axes relative to the rotation axis of Earth.
 
i think because of tilted Earth axis, except poles, the point on the sphere surface( gyro holder) has to move in all 3 axis
 
Tilt relative to an arbitrary reference frame?
You can consider everything from the reference frame of Earth, aligned with the axis of rotation.
 

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