Relativity

1969 topics in this forum

1. Check your time dilation intuition

   By Genady, September 5, 2023
   • 18 replies
   • 799 views
   • 
   • Genady
   • September 7, 2023

2. Speed of Time 1 2

   By M.Ross, June 21, 2022
   • 32 replies
   • 2.1k views
   • 
   • Genady
   • September 4, 2023

3. What are alternative formulations of GR?

   By Genady, March 14, 2023
   • 17 replies
   • 1.3k views
   • 
   • Genady
   • September 1, 2023

4. Why "even light"? 1 2 3 4 6

   By Genady, July 31, 2023
   • 132 replies
   • 4.6k views
   • 
   • studiot
   • August 13, 2023

5. If different elementary particles are at highly different relative velocities, how can it be said that an atom or larger mass is in its own frame?

   By CrypticFish, July 10, 2023
   • 14 replies
   • 748 views
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   • exchemist
   • July 10, 2023

6. Need help from any math people here with special relativity.

   By Michael_123_, July 3, 2023
   • 1 reply
   • 447 views
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   • Genady
   • July 4, 2023

7. Gravitational waves (split from Wave-Particle Duality)

   By MJ kihara, June 27, 2023
   • 11 replies
   • 820 views
   • 
   • swansont
   • June 30, 2023

8. Spacetime intervals

   By geordief, June 16, 2023
   • 8 replies
   • 560 views
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   • md65536
   • June 17, 2023

9. Was there a maximum speed during Inflation? 1 2

   By geordief, May 8, 2023
   • 31 replies
   • 1.7k views
   • 
   • Mordred
   • May 11, 2023

10. The nature of space and time

    By Sarki, May 6, 2023
    • 2 replies
    • 604 views
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    • swansont
    • May 6, 2023

11. ... paradox help needed ...

    By zetetic56, April 25, 2023
    • 10 replies
    • 994 views
    • 
    • zetetic56
    • April 26, 2023

12. Paradox? (split from Is FTL actually possible?) 1 2 3

    By Genady, April 8, 2023
    • 64 replies
    • 3.2k views
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    • studiot
    • April 12, 2023

13. If the Earth was made of gruyere cheese...

    By geordief, March 27, 2023
    • 4 replies
    • 566 views
    • 
    • Markus Hanke
    • March 28, 2023

14. Gravitational waves inside the Earth(or similar object) 1 2

    By geordief, March 20, 2023
    • 30 replies
    • 1.6k views
    • 
    • Markus Hanke
    • March 21, 2023

15. Re imagining the trampoline analogy

    By geordief, March 19, 2023
    • 1 reply
    • 453 views
    • 
    • Markus Hanke
    • March 20, 2023

16. Momentum and spacetime curvature 1 2

    By geordief, March 8, 2023
    • 32 replies
    • 2k views
    • 
    • Genady
    • March 19, 2023

17. Twin paradox (split from Hijack from Jumping out of the black hole)

    By MJ kihara, March 14, 2023
    • 5 replies
    • 526 views
    • 
    • Phi for All
    • March 15, 2023

18. Logic and illogic make up the string.

    By deema, March 14, 2023
    • 1 reply
    • 282 views
    • 
    • Phi for All
    • March 14, 2023

19. Expansion of the universe or contraction of scale?

    By katahiromz, March 6, 2023
    • 14 replies
    • 1.1k views
    • 
    • Genady
    • March 7, 2023

20. Recording or perceiving the activity of an oncoming object

    By geordief, March 2, 2023
    • 17 replies
    • 785 views
    • 
    • Genady
    • March 4, 2023

21. Lorentz transformations btw rotating frames of reference

    By geordief, February 25, 2023
    • 5 replies
    • 551 views
    • 
    • md65536
    • February 26, 2023

22. coming apart from

    By Ibrahim Sanad, February 22, 2023
    • 2 replies
    • 384 views
    • 
    • Lorentz Jr
    • February 22, 2023

23. The twin Paradox revisited 1 2 3 4 9

    By Awatso, February 10, 2023
    • 204 replies
    • 7.1k views
    • 
    • martillo
    • February 20, 2023

24. What would happen to time if we could travel faster than light?

    By dimreepr, December 10, 2022
    • 7 replies
    • 794 views
    • 
    • Janus
    • February 20, 2023

25. The speed of light and causality 1 2

    By geordief, February 9, 2023
    • 40 replies
    • 1.7k views
    • 
    • Boltzmannbrain
    • February 20, 2023