Relativity

1985 topics in this forum

1. Invariance of the speed of light

   By geordief, September 11, 2020
   • 17 replies
   • 1.6k views
   • 
   • swansont
   • September 14, 2020

2. Measuring the non-linearity residual between average and summed instantaneous velocities

   By drumbo, September 11, 2020
   • 9 replies
   • 1.4k views
   • 
   • md65536
   • September 12, 2020

3. Wouldn't the Earth appear curved, even if it were flat?

   By Jonah Thorsson, September 3, 2020
   • 22 replies
   • 2.3k views
   • 
   • Markus Hanke
   • September 5, 2020

4. Double slit and time dilation

   By Dord, May 28, 2020
   • 6 replies
   • 1.5k views
   • 
   • Markus Hanke
   • September 5, 2020

5. Ballistic 'not-light' cone question

   By Halc, August 27, 2020
   • 11 replies
   • 1.7k views
   • 
   • swansont
   • August 29, 2020

6. Could cause and effect be broken, if time stopped?

   By empleat, August 18, 2020
   • 10 replies
   • 1.4k views
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   • MigL
   • August 26, 2020

7. Lorentz-contraction 1 2 3

   By Winterlong, August 8, 2020
   • 62 replies
   • 90.6k views
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   • swansont
   • August 25, 2020

8. Space and time

   By Kenil Rajyaguru, August 18, 2020
   • 3 replies
   • 966 views
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   • Strange
   • August 18, 2020

9. Slicing simultaneity at an angle into past and furure

   By bob campbell, August 3, 2020
   • 21 replies
   • 1.9k views
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   • md65536
   • August 5, 2020

10. Why do apples fall rather than lift off the ground? 1 2

    By geordief, June 2, 2020
    • 28 replies
    • 66.4k views
    • 
    • jajrussel
    • July 15, 2020

11. Spacetime Diagrams Lorentz Transform.

    By can't_think_of_a_name, July 8, 2020
    • 5 replies
    • 1.1k views
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    • md65536
    • July 10, 2020

12. Black holes and evaporation 1 2 3 4 6

    By rjbeery, June 15, 2020
    • 128 replies
    • 71k views
    • 
    • Phi for All
    • July 9, 2020

13. time is both absolute and relative

    By motlan, July 1, 2020
    • 6 replies
    • 1.8k views
    • 
    • Janus
    • July 1, 2020

14. Frames of reference in Special Relativity

    By geordief, July 1, 2020
    • 8 replies
    • 1k views
    • 
    • geordief
    • July 1, 2020

15. What would a stationary observer see if you travelled close the speed of light?

    By Katalos1997, June 15, 2020
    • 5 replies
    • 1.2k views
    • 
    • Strange
    • June 15, 2020

16. The spacetime curvature of a point between two massive bodies

    By geordief, June 12, 2020
    • 13 replies
    • 1.4k views
    • 
    • Mordred
    • June 14, 2020

17. How do gravitational fields interact?

    By geordief, June 4, 2020
    • 15 replies
    • 2.1k views
    • 
    • joigus
    • June 10, 2020

18. : How do you create the flat region in between a warp bubble for a warp drive?

    By can't_think_of_a_name, May 23, 2020
    • 12 replies
    • 1.8k views
    • 
    • can't_think_of_a_name
    • May 27, 2020

19. Is there a value or something else that indicates the orientation of an orbit?

    By Flavio Manna, May 11, 2020
    • 19 replies
    • 2.6k views
    • 
    • studiot
    • May 22, 2020

20. Taking Warp Drive Seriously: 1 2

    By beecee, March 3, 2020
    • 28 replies
    • 87k views
    • 
    • Markus Hanke
    • May 7, 2020

21. Can someone please explain galaxies moving 5 times light speed and 1 2

    By Angelo, January 7, 2020
    • 37 replies
    • 49.2k views
    • 
    • dimreepr
    • May 4, 2020

22. The spacetime interval in General Relativity

    By geordief, April 21, 2020
    • 13 replies
    • 1.9k views
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    • md65536
    • April 24, 2020

23. Length contraction and squeezed states (split from Create visible light...)

    By Kartazion, April 21, 2020
    • 1 reply
    • 862 views
    • 
    • Strange
    • April 21, 2020

24. understanding Space Time curvature

    By acharyajit, April 19, 2020
    • 3 replies
    • 1k views
    • 
    • Mordred
    • April 19, 2020

25. Classic hijack (from Are the weirdnesses of QM still regarded as mysteries to be resolved?)

    By LaurieAG, March 9, 2020
    • 9 replies
    • 1.6k views
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    • LaurieAG
    • March 18, 2020