Questions tagged [gyroscopes]
A spinning wheel or disc in which the axis of rotation is free to assume any orientation by itself. When rotating, the orientation of this axis is unaffected by tilting or rotation of the mounting, according to the conservation of angular momentum. These devices are used for measuring or maintaining orientation and angular velocity.
311 questions
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Why is it not possible to rotate sphere on 2 axis simultaneously?
I have conducted several tests with a steel sphere to rotate it simultaneously on two axes. In none of these tests did I successfully achieve simultaneous rotation as intended. The sphere rotated ...
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1 answer
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Gyroscope transport
Say I'm inside a closed box and I spin an ideal gyroscope, its spinning axis is perpendicular to the ground and it spins CCW. I go to sleep inside the closed box and I wake up unknowingly in the ...
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1 answer
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Kinetic energy of a gyroscope rotating with the Earth
Let's say that we have a gyroscope rotating with the earth in colatitude $λ$ as described at T. Kibble & F. Berkshire, Classical Mechanics, 2004; problem 21 chapter 9. We want to find its kinetic ...
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1 answer
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Physics behind a motocross whip
I've been struggling for quite some time to find an answer as to why motocross motorcycles mysteriously return or swing back to the original position after a "whip". Please refer to the ...
1 vote
1 answer
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Why does the gyro not do this?
Eric Laithwaite's paper "The Jabberwock" "The Jabberwock" posed the illustrated question. He felt the gyro should tilt down lowering the centre of gravity of the whole system ...
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How can physics coordinates be linearly independent as a gyroscope’s spinning effects $ x, y, z$, and $t$?
I was just thinking. If I were to spin a gyroscope, with the addition of say adding loose threads on the shaft, wouldn’t they spin on the $x$ plane, and essentially be effected both in $x$ and $y$ ...
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3 answers
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What are "interaction particles" that cause gyroscope precession?
To move or rotate any object, we need some force, this force can interact with object in different ways, contact force(electromagnetic force between atoms), magnetic force etc. All these forces have ...
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Why does this gyroscope derivation fail for non-punctual mass distributions?
I've been working on deriving the equations of motion for a gyroscope in spherical coordinates. The setup involves a mass distribution (e.g., a spinning disk) whose center of mass is at a fixed ...
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Gyroscope Calculations
Above is an illustration of a gyroscope and now according to the right hand rule, I have given the directions of torque. Since it is a spinning wheel I have replaced the Force with the centrepetal ...
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2 votes
0 answers
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Suited change of basis coordinates for solving relativistic Lense-Thirring and frame dragging
I have not been able to find in textbook (Landau, Wald) the rationales driving to the coordinate basis change proposed in MTW in order to comprehend the Lense Thirring / frame dragging effect in an ...
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2 answers
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How to understand gyroscopes by using vectors?
I’ve seen plenty of videos explaining how gyroscopes work, but almost non of them why they are constrained to work in such way. From seeing only angular momentum vectors, how could one predict ...
4 votes
2 answers
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Is it possible to reproduce tennis racket theorem instability with a gymbal under earth gravitational field?
The tennis racket theorem (whose effect is also known as Dzhanibekov effect), states that the rotational motion around the intermediate principal axis is not stable (that is, any small disturbance ...
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Spinning top stabilisation for a type of aircraft/drone
Spinning tops use gyroscopic precession to be able to stay upright whilst spinning. Would it be possible to use this phenomena to create a flying craft that would be stabilised by gravity and the ...
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3 answers
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What happens if we prevent gyroscope to precess?
If we apply some torque to spinning wheel in a vacuumed space in body frame y axis, wheel try to precess due to gyroscopic effect but it will be prevented by obstacles as seen from picture, what will ...
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1 vote
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Torque applying on both rotating and non-rotating object
In rod reference frame: origin is center of the rod, pitching axis is coinciding with the rod external torque is applied in rolling axis If a torque is applied to non-rotating object(the rod and the ...
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