Relativity

1969 topics in this forum

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

   By Mordred, May 31, 2015
   • 352 replies
   • 71.9k views
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   • crazzy__physicist
   • December 20, 2023

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

   By md65536, May 3, 2013
   • 402 replies
   • 40.4k views
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   • md65536
   • December 4, 2013

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

   By robinpike, August 15, 2016
   • 355 replies
   • 34k views
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   • robinpike
   • October 3, 2016

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

   By aramis720, June 2, 2017
   • 319 replies
   • 24.4k views
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   • beecee
   • July 8, 2017

5. Relative Motion 1 2 3 4 11

   By Klaynos, June 20, 2008
   • 262 replies
   • 21.2k views
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   • Cap'n Refsmmat
   • June 22, 2008

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

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

7. Time. 1 2 3 4 10

   By blike, July 23, 2002
   • 242 replies
   • 31.1k views
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   • decraig
   • November 27, 2013

8. Universal 'Now' at Time-Zero 1 2 3 4 9

   By StringJunky, August 16, 2016
   • 219 replies
   • 20.7k views
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   • Pugdaddy
   • April 19, 2017

9. Time and speed and how speed impacts time 1 2 3 4 9

   By Estranged, December 31, 2017
   • 211 replies
   • 15k views
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   • druS
   • February 1, 2018

10. Faster than light 1 2 3 4 9

    By MajinVegeta, March 6, 2003
    • 209 replies
    • 21.4k views
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    • swansont
    • November 17, 2004

11. Time travelling 1 2 3 4 9

    By MadScientist, July 31, 2004
    • 206 replies
    • 23.6k views
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    • AtomicMX
    • March 10, 2005

12. The twin Paradox revisited 1 2 3 4 9

    By Awatso, February 10, 2023
    • 204 replies
    • 7.2k views
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    • martillo
    • February 20, 2023

13. Neutral simultaneity for two frames. 1 2 3 4 8

    By DimaMazin, December 9, 2022
    • 197 replies
    • 9.6k views
    • 
    • Bufofrog
    • January 12

14. Shortest Paths 1 2 3 4 8

    By revprez, April 3, 2005
    • 186 replies
    • 16k views
    • 
    • □h=-16πT
    • June 4, 2005

15. Constancy of SOL from all objects 1 2 3 4 8

    By michel123456, July 19, 2016
    • 185 replies
    • 12.8k views
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    • Strange
    • August 2, 2016

16. A question about the present! 1 2 3 4 8

    By JohnLesser, April 2, 2017
    • 175 replies
    • 13.3k views
    • 
    • Phi for All
    • April 4, 2017

17. Relativity of simultaneity and one-way speed of light 1 2 3 4 7

    By Andromacus, August 31, 2015
    • 167 replies
    • 17.1k views
    • 
    • Andromacus
    • September 18, 2015

18. Curved space 1 2 3 4 7

    By Anilkumar, June 4, 2011
    • 161 replies
    • 23k views
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    • Santalum
    • February 11, 2012

19. Clocks and rulers 1 2 3 4 7

    By StringJunky, July 29, 2016
    • 159 replies
    • 15.7k views
    • 
    • swansont
    • August 12, 2016

20. Does the time exist? 1 2 3 4 7

    By Heis3nberg, July 2, 2021
    • 158 replies
    • 11.3k views
    • 
    • dimreepr
    • January 22

21. twin paradox 1 2 3 4 7

    By Didymus, April 1, 2014
    • 155 replies
    • 16.1k views
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    • Fred Champion
    • May 25, 2014

22. 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
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    • SamBridge
    • May 25, 2013

23. Relation of time and speed of light 1 2 3 4 7

    By Raider5678, May 15, 2016
    • 152 replies
    • 11.2k views
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    • swansont
    • June 28, 2016

24. Why nothing can go faster than speed of light. 1 2 3 4 7

    By Robittybob1, March 6, 2016
    • 152 replies
    • 17k views
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    • swansont
    • April 24, 2017

25. functionally faster than light. 1 2 3 4 6

    By Didymus, February 22, 2013
    • 144 replies
    • 11.1k views
    • 
    • swansont
    • March 16, 2013