Rotation within a vacuum vs rotation with a pressurized environment.

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An object can theoretically spin indefinitely in a vacuum, but placing it in a pressurized environment may cause it to slow down due to various forces. Calculating the time it takes for an object to stop rotating in such an environment involves understanding the forces acting on it, possibly including shape alterations. The discussion also touches on the challenge of capturing space debris, where stopping or matching the rotation is crucial. One proposed method involves surrounding the debris with a pressurized space to halt its spin, but this raises questions about feasibility. Conservation of momentum is a key principle that complicates this approach, suggesting that simply pressurizing the space may not effectively stop the rotation.
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common sense tells me that if an object can remain spinning in the vacuum of space for eternity, than placing that same object within a pressurised environment will cause the object to slow to a stop. is there a way for me to calculate the time in which it would take an object to stop rotating within a pressurised environment? the goal would be to achieve the fastest time in stopping an object from spinning.
 
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BAUCE said:
the goal would be to achieve the fastest time in stopping an object from spinning.
By what means? Changing the shape of the object?
 
A.T. said:
By what means? Changing the shape of the object?
thinking along the lines of trash in space. in order to reach out and grab a piece of debris, either it has to stop spinning, or the rotation must be matched. my thought is that rather than 'grabbing' it, surround it and pressurise the space around it so to stop the rotation.
 
BAUCE said:
thinking along the lines of trash in space. in order to reach out and grab a piece of debris, either it has to stop spinning, or the rotation must be matched. my thought is that rather than 'grabbing' it, surround it and pressurise the space around it so to stop the rotation.
Sorry, but this doesn't make any sense to me. Why would you do it?
 
BAUCE said:
thinking along the lines of trash in space. in order to reach out and grab a piece of debris, either it has to stop spinning, or the rotation must be matched. my thought is that rather than 'grabbing' it, surround it and pressurise the space around it so to stop the rotation.
That won't work because of conservation of momentum. We don't know your background. Do you understand "because of conservation of momentum" ?
 

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