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Relativity

For discussion of problems relating to special and general relativity.

1991 topics in this forum

  1. What is Space made of? 1 2 3 4 16

    By Mordred,
    • 392 replies
    • 85.2k views

  2. Special Relativity Paradox

    By M S La Moreaux,
    • 14 replies
    • 401 views

  3. Mass and curvature (split from Question about matter and space-time)

    By Dejan1981,
    • 20 replies
    • 804 views

  4. Favorite Warp Drive Direction

    By dedo,
    • 0 replies
    • 263 views

  5. The speed of light

    By m_m,
    • 9 replies
    • 522 views

  6. Path of photon in gravitational field

    By StringJunky,
    • 7 replies
    • 381 views

  7. Is such a flaw conceivable in GR? 1 2 3

    By externo,
    • 51 replies
    • 2.6k views

  8. what if we believe what is not real [time]

    By Wanjala Joseph,
    • 4 replies
    • 440 views

  9. What does light feel about its motion?

    By Munim,
    • 16 replies
    • 1.3k views

  10. Taking my girlfriend to Alpha Centauri on the Millennium Falcon 2 1 2

    By Gian,
    • 39 replies
    • 2.4k views

  11. Is rapidity a measure of acceleration? 1 2

    By md65536,
    • 28 replies
    • 2.6k views

  12. Neutral simultaneity for two frames. 1 2 3 4 9

    By DimaMazin,
    • 205 replies
    • 17.6k views

  13. How do we measure the degree of "change" between 2 systems?

    By geordief,
    • 12 replies
    • 779 views

  14. The closer to the speed of light, the more length contraction in the direction of motion (SRT). 1 2 3

    By Maartenn100,
    • 60 replies
    • 4.4k views

  15. Length contraction in a doughnut shaped universe.

    By grayson,
    • 7 replies
    • 1.5k views

  16. Final Parsec Problem

    By MigL,
    • 6 replies
    • 1.2k views

  17. Gullstrand–Painlevé coordinates 1 2 3

    By externo,
    • 50 replies
    • 3k views

  18. Gravity drive

    By Dmitriy,
    • 7 replies
    • 1.1k views

  19. Alcubierre Warp Drives and Strong Gravity Fields

    By GeeKay,
    • 12 replies
    • 1.4k views

  20. Astrogeomanity: A Comprehensive Framework for Human Evolution in Space

    By Daniel Dux,
    • 2 replies
    • 988 views

  21. Proof that Einstein Special relativity is false because light is not isotropic in all reference frames.

    By externo,
    • 5 replies
    • 1.2k views

  22. Why didn't gravity seem to be understood before if there were scales?

    By Wigberto Marciaga,
    • 3 replies
    • 1.1k views

  23. Combined speeds at relativistic velocities 1 2

    By Moontanman,
    • 32 replies
    • 2.6k views

  24. Twin paradox with a twist

    By DanMP,
    • 19 replies
    • 1.9k views

  25. The equivalence principle and blueshift

    By DanMP,
    • 12 replies
    • 1.6k views
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