Relativity

1969 topics in this forum

1. Deriving Relativity

   By geordief, October 2, 2020
   • 9 replies
   • 1.4k views
   • 
   • geordief
   • October 4, 2020

2. A mundane example of a spacetime interval being invariant

   By geordief, September 24, 2020
   • 24 replies
   • 2.9k views
   • 
   • Markus Hanke
   • October 3, 2020

3. Lightspeed?

   By Hello2, September 25, 2020
   • 3 replies
   • 1.2k views
   • 
   • Janus
   • September 25, 2020

4. GRAVITY: Force or Farce?

   By DEFinning, September 25, 2020
   • 15 replies
   • 1.8k views
   • 
   • joigus
   • September 25, 2020

5. Split from Time dilation dependence on direction

   By Charles 3781, September 23, 2020
   • 7 replies
   • 968 views
   • 
   • Janus
   • September 24, 2020

6. Time dilation dependence on direction

   By HongKongEvil, April 26, 2017
   • 8 replies
   • 6.3k views
   • 
   • swansont
   • September 24, 2020

7. The equivalence principle and the curvature of spacetime

   By geordief, September 22, 2020
   • 14 replies
   • 1.5k views
   • 
   • joigus
   • September 23, 2020

8. gravity can pull us through the cosmos to where we want to go 1 2 3

   By farsideofourmoon, May 13, 2020
   • 53 replies
   • 107.4k views
   • 
   • swansont
   • September 20, 2020

9. Time Zone Change Syndrome

   By 20ny, September 14, 2020
   • 6 replies
   • 1.5k views
   • 
   • Eise
   • September 15, 2020

10. Invariance of the speed of light

    By geordief, September 11, 2020
    • 17 replies
    • 1.4k views
    • 
    • swansont
    • September 14, 2020

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

    By drumbo, September 11, 2020
    • 9 replies
    • 1.2k views
    • 
    • md65536
    • September 12, 2020

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

    By Jonah Thorsson, September 3, 2020
    • 22 replies
    • 1.9k views
    • 
    • Markus Hanke
    • September 5, 2020

13. Double slit and time dilation

    By Dord, May 28, 2020
    • 6 replies
    • 1.3k views
    • 
    • Markus Hanke
    • September 5, 2020

14. Ballistic 'not-light' cone question

    By Halc, August 27, 2020
    • 11 replies
    • 1.5k views
    • 
    • swansont
    • August 29, 2020

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

    By empleat, August 18, 2020
    • 10 replies
    • 1.2k views
    • 
    • MigL
    • August 26, 2020

16. Lorentz-contraction 1 2 3

    By Winterlong, August 8, 2020
    • 62 replies
    • 89.2k views
    • 
    • swansont
    • August 25, 2020

17. Space and time

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

18. Slicing simultaneity at an angle into past and furure

    By bob campbell, August 3, 2020
    • 21 replies
    • 1.5k views
    • 
    • md65536
    • August 5, 2020

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

    By geordief, June 2, 2020
    • 28 replies
    • 65.8k views
    • 
    • jajrussel
    • July 15, 2020

20. Spacetime Diagrams Lorentz Transform.

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

21. Black holes and evaporation 1 2 3 4 6

    By rjbeery, June 15, 2020
    • 128 replies
    • 68.9k views
    • 
    • Phi for All
    • July 9, 2020

22. time is both absolute and relative

    By motlan, July 1, 2020
    • 6 replies
    • 1.5k views
    • 
    • Janus
    • July 1, 2020

23. Frames of reference in Special Relativity

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

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

    By Katalos1997, June 15, 2020
    • 5 replies
    • 912 views
    • 
    • Strange
    • June 15, 2020

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

    By geordief, June 12, 2020
    • 13 replies
    • 1.2k views
    • 
    • Mordred
    • June 14, 2020