[DuniyaGolHai]

Hi FEers,

A Gimbal is a device that maintains orientation wrt 3 axis. In RE it maintains that due to 'Gravity'... so a Gimbal on free falling object would maintain orientation (That is, it can point which direction is DOWN even during free fall)

What is the explanation of FEer, how it would maintain orientation in FE while UA cannot act on Gimbal during a free fall.

Below is the link on what Gimbal is...

https://en.wikipedia.org/wiki/Gimbal

https://en.wikipedia.org/wiki/Gimbal#/media/File:Gyroscope_operation.gif

[douglips]

I think you  mean gyroscope, a gimbal is used to hold a gyroscope.

Gravity is not what keeps a gyroscope oriented, the gyroscope's angular momentum is what keeps it aligned.

The earth is round, but you can't prove that by using incorrect assumptions.

[DuniyaGolHai]

I think you  mean gyroscope, a gimbal is used to hold a gyroscope.

Gravity is not what keeps a gyroscope oriented, the gyroscope's angular momentum is what keeps it aligned.

The earth is round, but you can't prove that by using incorrect assumptions.

No, I am specifically talking about Gimbal...I know what Gyroscope is.

Gimbal in itself remains orientated, try it out with a free falling Gimbal....

[JohnAdams1145]

I think you're misinformed here. The gimbals are literally the rings that hold a gyroscope. Gyroscopes stay pointed in the same direction because of their angular momentum when initialized, not because of gravity or whatever you posit it to be. You should read up on the appropriate articles.

[douglips]

The wikipedia article for gimbal shows an illustration with a gyroscope in the middle of a 3-gimbal set. The gyroscope is the thing that stays fixed, all the gimbals move:
https://en.wikipedia.org/wiki/Gimbal


Even in this picture, you see that all the gimbals move, and only the gyroscope stays stationary.

If that's not what you're talking about, please provide a picture or video so we can understand what you're saying.

Also, if you have any information on gravity being the cause of one of these things staying put please let us know where that comes from as well, because that differs from all the physics I learned.

[DuniyaGolHai]

Here is how both are different

http://www.wisegeek.com/what-is-the-difference-between-a-gyroscope-and-a-gimbal.htm

http://wikidiff.com/gimbal/gyroscope

The gimbal allows an object that is mounted on the base to move freely in any direction, so that the object remains in a horizontal position regardless of the angle of the base. This freedom of movement makes the gimbal an essential element in many devices that are used to measure momentum and directional orientation

[Roundy]

Here is how both are different

http://www.wisegeek.com/what-is-the-difference-between-a-gyroscope-and-a-gimbal.htm

http://wikidiff.com/gimbal/gyroscope

The gimbal allows an object that is mounted on the base to move freely in any direction, so that the object remains in a horizontal position regardless of the angle of the base. This freedom of movement makes the gimbal an essential element in many devices that are used to measure momentum and directional orientation

Exactly, the gimbal moves, the gyroscope stays stationary. And it has nothing to do with gravity. So moving on...

[douglips]

Sorry, I think there is a language barrier, but you're not making any sense. The gimbal is what allows the gyroscope to maintain orientation. The gyroscope maintains orientation due to angular momentum. This has nothing to do with gravity, and works fine whether earth is flat or not.