Relativity

1971 topics in this forum

1. How does Gravitational Mass work? 1 2 3

   By geordief, December 9, 2019
   • 56 replies
   • 54.5k views
   • 
   • studiot
   • December 15, 2019

2. why negative 1 2

   By michel123456, December 18, 2010
   • 34 replies
   • 20.2k views
   • 
   • <Veronica>
   • November 19, 2019

3. The Single Postulate for SR

   By geordief, November 11, 2019
   • 16 replies
   • 1.7k views
   • 
   • geordief
   • November 13, 2019

4. Who came up with the idea of relative time?

   By geordief, July 24, 2019
   • 14 replies
   • 2.1k views
   • 
   • Eise
   • November 12, 2019

5. Relativity (split from Can relativity be applied to light speed?) 1 2

   By MPMin, August 15, 2019
   • 47 replies
   • 9.2k views
   • 
   • studiot
   • November 12, 2019

6. Twin paradox math problem 1 2

   By md65536, September 1, 2019
   • 27 replies
   • 50.6k views
   • 
   • Mordred
   • November 12, 2019

7. The invariance of c 1 2 3

   By geordief, October 1, 2019
   • 66 replies
   • 19.9k views
   • 
   • Schmelzer
   • November 11, 2019

8. Superluminal Coulomb Field

   By Bluemoon, October 11, 2019
   • 9 replies
   • 1.3k views
   • 
   • Bluemoon
   • October 22, 2019

9. Direction of time 1 2 3 4

   By Razee01, March 12, 2019
   • 80 replies
   • 8.8k views
   • 
   • Mordred
   • October 10, 2019

10. Why Does Time Slow Down or Speed up? 1 2

    By Farid, August 26, 2019
    • 40 replies
    • 56.4k views
    • 
    • swansont
    • October 1, 2019

11. Matter creates gravity

    By Lan Todak, August 8, 2019
    • 16 replies
    • 2.5k views
    • 
    • Mordred
    • September 27, 2019

12. How does one represent the fourth dimension on a graph?

    By thethinkertank, September 9, 2019
    • 11 replies
    • 1.9k views
    • 
    • Strange
    • September 10, 2019

13. Non inertial frames

    By moth, September 5, 2019
    • 13 replies
    • 1.8k views
    • 
    • md65536
    • September 6, 2019

14. Math v physics (split from Direction of time) 1 2

    By michel123456, September 3, 2019
    • 29 replies
    • 5.3k views
    • 
    • studiot
    • September 6, 2019

15. Why is Newtonian Gravity so accurate?

    By geordief, April 24, 2016
    • 24 replies
    • 3k views
    • 
    • studiot
    • September 2, 2019

16. The relationship between space and time 1 2

    By geordief, July 27, 2019
    • 28 replies
    • 7.8k views
    • 
    • michel123456
    • August 29, 2019

17. Einstein's first Law

    By geordief, August 23, 2019
    • 13 replies
    • 1.4k views
    • 
    • geordief
    • August 26, 2019

18. Can relativity be applied to light speed?

    By Phys1, August 11, 2019
    • 17 replies
    • 2k views
    • 
    • swansont
    • August 15, 2019

19. Does warped spacetime unbend when a mass is removed?

    By PrimalMinister, July 26, 2019
    • 12 replies
    • 1.7k views
    • 
    • beecee
    • August 3, 2019

20. Calculation of TIME DILATATION with Calculator problem

    By DRKFUTURE, July 20, 2019
    • 18 replies
    • 1.7k views
    • 
    • Bufofrog
    • July 21, 2019

21. Does the expansion of universe effect light? 1 2

    By John Conner, June 28, 2019
    • 32 replies
    • 34.2k views
    • 
    • Mordred
    • July 19, 2019

22. Topic 5: Special Relativity - derivation of Lorentz transformations

    By Jan Slowak, July 15, 2019
    • 1 reply
    • 1.1k views
    • 
    • Strange
    • July 15, 2019

23. Topic 4: Special Relativity - Lorentz transformations 1 2 3

    By Jan Slowak, June 15, 2019
    • 61 replies
    • 5.3k views
    • 
    • Phi for All
    • July 15, 2019

24. Energy and spacetime curvature.

    By geordief, July 13, 2019
    • 2 replies
    • 991 views
    • 
    • geordief
    • July 13, 2019

25. Equations of a simultaneous 3D accelerating motion

    By John Conner, June 29, 2019
    • 3 replies
    • 1.1k views
    • 
    • Mordred
    • July 12, 2019