Is the gravitational time dilatation a real effect?

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SUMMARY

Gravitational time dilation is a real and observable effect, confirmed by experiments such as the Pound-Rebka experiment and the functioning of GPS satellites, which account for both special and general relativistic time dilation. The discussion highlights that gravitational redshift and time dilation are interrelated phenomena, and the difference in time pace between two points increases with the difference in gravitational potential. The concept of the event horizon is clarified, indicating that while we cannot observe events beyond it, objects can approach it without necessarily crossing it within a finite timeframe from our perspective.

PREREQUISITES
  • Understanding of general relativity and gravitational time dilation
  • Familiarity with the concept of event horizons in black hole physics
  • Knowledge of the Pound-Rebka experiment and its implications
  • Basic comprehension of GPS technology and its reliance on relativistic effects
NEXT STEPS
  • Research the implications of gravitational time dilation on satellite technology, particularly GPS systems
  • Study the Pound-Rebka experiment and its significance in confirming gravitational redshift
  • Explore the mathematical framework of Schwarzschild coordinates in black hole physics
  • Investigate the nature of event horizons and their implications for black hole formation and growth
USEFUL FOR

Physicists, astronomers, and students of relativity who seek to understand the implications of gravitational time dilation and its effects on both theoretical and practical applications in modern technology.

  • #91
starthaus said:
Try keeping it professional, ok? No point in getting personal.

I remember that other thread you and kev fought for a few hundred posts. I think there is clearly something here. Maybe you two could PM a bit and come to an understanding? From the outside looking in, I'm just here, and I assume you two have a longstanding grudge.
 
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  • #92
starthaus said:
Try keeping it professional, ok? No point in getting personal.
:smile::smile::smile:
starthaus said:
I don't have anything against kev, I don't like his hacky methods that involve putting in results by hand followed by shaky proofs.
Then why not just say that you disapprove of his method and why, show your own if you like, and move on instead of hijacking threads for hundreds of posts?

That would preserve the usefulness of the thread to others.
 
  • #93
Al68 said:
:smile::smile::smile:Then why not just say that you disapprove of his method and why, show your own if you like,

This is precisely what I did.
 
  • #94
starthaus said:
Al68 said:
:smile::smile::smile:Then why not just say that you disapprove of his method and why, show your own if you like,
This is precisely what I did.
LOL. The key word in my post is just.
 
  • #95
Al68 said:
LOL. The key word in my post is just.

If you trolled less and you read more , you'd be so much better off.
 
  • #96
It would be trolling if it were not completely accurate, and a sentiment echoed by others.
 
  • #97
Kamil Szot said:
What I wanted to say is that universe might end before you receive last signal no matter how long finite time of existence universe has ahead of itself. Maybe not if universe final fate is big crunch.
In principle one can only have a fully developed event horizon if spacetime is not closed.
 

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