Relativity

1969 topics in this forum

1. What is Space made of? 1 2 3 4 15

   By Mordred, May 31, 2015
   • 352 replies
   • 71.7k views
   • 
   • crazzy__physicist
   • December 20, 2023

2. FTL thought experiment 1 2

   By Moontanman, October 31, 2020
   • 33 replies
   • 128.6k views
   • 
   • md65536
   • November 7, 2020

3. 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

4. What fundamentally is acceleration? 1 2

   By sgabc123, October 6, 2020
   • 31 replies
   • 102.2k views
   • 
   • md65536
   • October 10, 2020

5. Lorentz-contraction 1 2 3

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

6. Taking Warp Drive Seriously: 1 2

   By beecee, March 3, 2020
   • 28 replies
   • 86.4k views
   • 
   • Markus Hanke
   • May 7, 2020

7. 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

8. Coexist vs Simultaneous 1 2

   By vexspits, November 3, 2020
   • 25 replies
   • 66.7k views
   • 
   • md65536
   • December 18, 2020

9. 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

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. How does Gravitational Mass work? 1 2 3

    By geordief, December 9, 2019
    • 56 replies
    • 54.4k views
    • 
    • studiot
    • December 15, 2019

12. Twin paradox math problem 1 2

    By md65536, September 1, 2019
    • 27 replies
    • 50.5k views
    • 
    • Mordred
    • November 12, 2019

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

    By Angelo, January 7, 2020
    • 37 replies
    • 48.5k views
    • 
    • dimreepr
    • May 4, 2020

14. General Relativity Explained 1 2 3

    By scuddyx, January 18, 2020
    • 69 replies
    • 45.4k views
    • 
    • Strange
    • March 13, 2020

15. Why does speed time slow down when you go fast then the speed of light 1 2 3 4 7

    By Guest yamum, July 29, 2004
    • 152 replies
    • 43.6k views
    • 
    • SamBridge
    • May 25, 2013

16. Acceleration is not important in the twin paradox 1 2 3 4 17

    By md65536, May 3, 2013
    • 402 replies
    • 40.3k views
    • 
    • md65536
    • December 4, 2013

17. Twins paradox explained without forces 1 2 3 4 6

    By scuddyx, January 21, 2020
    • 126 replies
    • 36.5k views
    • 
    • md65536
    • February 24, 2020

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

    By John Conner, June 28, 2019
    • 32 replies
    • 34.1k views
    • 
    • Mordred
    • July 19, 2019

19. Clocks, rulers... and an issue for relativity 1 2 3 4 15

    By robinpike, August 15, 2016
    • 355 replies
    • 33.9k views
    • 
    • robinpike
    • October 3, 2016

20. Time. 1 2 3 4 10

    By blike, July 23, 2002
    • 242 replies
    • 31k views
    • 
    • decraig
    • November 27, 2013

21. Einstein vs Tesla 1 2

    By Comandante, January 20, 2005
    • 29 replies
    • 29.5k views
    • 
    • wizzer
    • April 22, 2010

22. timedilation contradiction 1 2

    By hu??, January 26, 2020
    • 42 replies
    • 28.5k views
    • 
    • Strange
    • February 8, 2020

23. Science-based criticisms of Farsight's Theories 1 2 3 4 10

    By BenTheMan, August 22, 2007
    • 245 replies
    • 27.6k views
    • 
    • BenTheMan
    • September 6, 2007

24. The Paradoxical Nature of Black Holes 1 2 3 4 6

    By Slinkey, January 9, 2008
    • 141 replies
    • 24.9k views
    • 
    • imatfaal
    • July 2, 2015

25. Can LIGO actually detect gravitational waves? 1 2 3 4 13

    By aramis720, June 2, 2017
    • 319 replies
    • 24.3k views
    • 
    • beecee
    • July 8, 2017