Do moving masses create another field, similar to how a moving charge

AI Thread Summary
Moving masses do create a very small field known as a gravitomagnetic field, similar to how moving charges generate a magnetic field. This concept originates from the work of Lense and Thirring in 1918, which was based on Einstein's Theory of General Relativity. The gravitomagnetic effect is primarily associated with rotational motion and is often discussed in the context of a linearized version of General Relativity. The term 'gravitomagnetism' has become popular in modern discussions of this phenomenon. Understanding this field could provide insights into the interplay between mass and gravity in the universe.
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Do moving masses create another field, similar to how a moving charge creates a magnetic field?
 
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Jonnyb42 said:
Do moving masses create another field, similar to how a moving charge creates a magnetic field?


Yes, albeit, a very tiny (gravitomaqnetic) field according to current theory.
Why do you ask?

...
 
Last edited:


Creator said:
Yes, albeit, a very tiny (gravitomaqnetic) field according to current theory.
Why do you ask?

...

Please, what "current theory"?
 


Brin said:
Please, what "current theory"?

In 1918 Lense and Thirring, originally developed the idea using Einstein's newly developed Theory of General Relativity. And so the effect, which was originally derived for rotational motion, is generally referred to as the Lense-Thirring field.

Today, the term 'gravitomagnetism' is popularly used and often refers to its deveopment from a 'linearized' version of Gen Rel.

Creator
 
Last edited:


Why do you ask?

...

I ask because I read about it somewhere and thought it was very interesting.
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
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