Relativity

1991 topics in this forum

1. gravitation and vacuum polarizability 1 2

   By Norman Albers, April 25, 2007
   • 39 replies
   • 8.4k views
   • 
   • Norman Albers
   • May 6, 2009

2. About black holes and time...

   By salter, May 1, 2009
   • 3 replies
   • 1.5k views
   • 
   • NowThatWeKnow
   • May 2, 2009

3. Telling universe time from the stars

   By Martin, May 2, 2009
   • 3 replies
   • 1.2k views
   • 
   • Martin
   • May 2, 2009

4. ????

   By Brandon, April 28, 2009
   • 2 replies
   • 1.3k views
   • 
   • NowThatWeKnow
   • April 28, 2009

5. Is spacetime absolute?

   By NowThatWeKnow, April 16, 2009
   • 22 replies
   • 4.3k views
   • 
   • NowThatWeKnow
   • April 28, 2009

6. Time v its measurement 1 2

   By asprung, April 9, 2009
   • 48 replies
   • 5.6k views
   • 
   • Norman Albers
   • April 24, 2009

7. A Question about Space-Time

   By etcetcetc00, April 21, 2009
   • 11 replies
   • 2.2k views
   • 
   • north
   • April 24, 2009

8. Relative perspective

   By dabliss74, April 18, 2009
   • 9 replies
   • 1.7k views
   • 
   • swansont
   • April 19, 2009

9. a thought question

   By WhataBohr, April 15, 2009
   • 5 replies
   • 1.6k views
   • 
   • WhataBohr
   • April 16, 2009

10. Time dilation question

    By Australo Rob., April 11, 2009
    • 3 replies
    • 1.3k views
    • 
    • NowThatWeKnow
    • April 12, 2009

11. BritGrav9

    By ajb, February 16, 2009
    • 3 replies
    • 1.1k views
    • 
    • ajb
    • April 6, 2009

12. possibly a stupid question.

    By cameron marical, February 11, 2009
    • 9 replies
    • 1.8k views
    • 
    • NowThatWeKnow
    • April 5, 2009

13. Help wanted with indices

    By JohnFromAus, April 28, 2008
    • 21 replies
    • 3.5k views
    • 
    • ajb
    • April 4, 2009

14. near lightspeed travel 1 2

    By samtheflash82, March 23, 2009
    • 26 replies
    • 3.9k views
    • 
    • swansont
    • April 2, 2009

15. Generalisation

    By skulldude, March 31, 2009
    • 4 replies
    • 1.1k views
    • 
    • ajb
    • April 1, 2009

16. Time Machine. 1 2 3

    By MysteriBoi, March 12, 2009
    • 53 replies
    • 6.9k views
    • 
    • mooeypoo
    • March 31, 2009

17. E=mc^2

    By NowThatWeKnow, February 7, 2009
    • 9 replies
    • 2.1k views
    • 
    • lakmilis
    • March 30, 2009

18. MOG and dark mattter.

    By GutZ, March 26, 2009
    • 2 replies
    • 1.2k views
    • 
    • GutZ
    • March 29, 2009

19. does bent space use energy?

    By cameron marical, March 15, 2009
    • 11 replies
    • 2.1k views
    • 
    • cameron marical
    • March 28, 2009

20. Chaos Theory. Is it relevant?

    By samtheflash82, March 23, 2009
    • 1 reply
    • 1.6k views
    • 
    • ajb
    • March 23, 2009

21. "now" and the Big Bang

    By asprung, February 6, 2009
    • 5 replies
    • 1.8k views
    • 
    • samtheflash82
    • March 23, 2009

22. "Einstein's Mistakes," by Hans C. Ohanian

    By Pete, August 25, 2008
    • 1 reply
    • 1.8k views
    • 
    • Theophrastus
    • March 18, 2009

23. Can the earth twin experence the space twins date? 1 2

    By asprung, March 9, 2009
    • 32 replies
    • 3.8k views
    • 
    • swansont
    • March 17, 2009

24. Is relativistic mass an illusion

    By NowThatWeKnow, February 8, 2009
    • 18 replies
    • 3.9k views
    • 
    • swansont
    • March 16, 2009

25. Relativity Q

    By losfomot, December 2, 2007
    • 10 replies
    • 2.1k views
    • 
    • HannonRJ
    • March 10, 2009