Define Electromagnetic Spacetime

In summary, the conversation discusses the concept of electromagnetic spacetime and its relationship to general relativity and the Kaluza-Klein theory. The participants question whether electromagnetic spacetime can be considered a four-dimensional space that coexists with the gravitational one and whether Kaluza-Klein is a successful unification of the two. However, there is disagreement and confusion about the specifics of this concept and its limitations. The conversation ends with a reminder about the forum rules regarding off-topic posts and thread hijacking.
  • #1
Lorensatcho
3
0
Can someone define Electromagnetic Spacetime for me?

Even though it is not unified with GR is it valid to think of its shape as subject to all the rules of geometry as GR?
 
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  • #2
EM is usually done in Minkowski spacetime which is flat and is the limit to which GR tends when there are no sources present.
 
  • #3
I know about "electro-magnetism" and "space-time". But I have never seen the phrase "electromagnetic spacetime" before. Could you explain what you mean? cosmik debris seems to think you mean electro-magnetism in space time. Is that correct?
 
  • #4
Could this be a reference to Kaluza-Klein theory, where electromagnetism is describe by a geometric spacetime?

V
 
  • #5
Can electromagnetic space-time be regarded as a four dimensional space-time that coexists with the gravitational one? My understanding is that Kaluza-Klein theory tries to unify both, but falls short.
 
  • #6
As Cosmik Debris said, EM is covered in a 4D Minkowski space, I'm not really sure what you're asking.

V
 
  • #7
Lorensatcho said:
Can electromagnetic space-time be regarded as a four dimensional space-time that coexists with the gravitational one? My understanding is that Kaluza-Klein theory tries to unify both, but falls short.

Kaluza-Klein uses 5D, where one spatial dimension is rolled into a circle. This does unify GR with EM but has some limitations. I am no expert on this so I won't comment further.
 
  • #9
Last edited by a moderator:

FAQ: Define Electromagnetic Spacetime

What is electromagnetic spacetime?

Electromagnetic spacetime is a concept in physics that combines the principles of electromagnetism and the theory of relativity in order to explain the behavior of electromagnetic fields and their interactions with space and time.

How is electromagnetic spacetime related to the theory of relativity?

The theory of relativity states that space and time are interconnected, and that the laws of physics should be the same for all observers regardless of their relative motion. Electromagnetic spacetime builds upon this idea and explains how electromagnetic fields are affected by the curvature of spacetime.

What is the significance of electromagnetic spacetime?

Electromagnetic spacetime is significant because it helps us understand the behavior of electromagnetic fields and their interactions with space and time. It has also been crucial in the development of technologies such as GPS systems and satellite communications.

Can electromagnetic spacetime be observed or measured?

No, electromagnetic spacetime cannot be directly observed or measured. However, its effects can be observed through experiments and its predictions have been confirmed by numerous experiments and observations.

Are there any practical applications of electromagnetic spacetime?

Yes, there are many practical applications of electromagnetic spacetime. For example, the principles of electromagnetic spacetime are used in the development of technologies such as MRI machines, particle accelerators, and electromagnetic propulsion systems.

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