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Relativity

For discussion of problems relating to special and general relativity.

1985 topics in this forum

  1. Gravity wells (split from A Question for Curved Spacetime)

    By geordief,
    • 14 replies
    • 1.4k views

  2. A Question for Curved Spacetime. 1 2 3 4 6

    By J.Merrill,
    • 135 replies
    • 9.3k views

  3. Why is the time axis in a space-time diagram a distance 1 2

    By Caruthers,
    • 27 replies
    • 3.4k views

  4. Gyroscope in a curved space

    By Genady,
    • 6 replies
    • 1.2k views

  5. What would the effects of an artificial gravity well/hole/ledge be? (Thought experiment)

    By Zerilia,
    • 5 replies
    • 1k views

  6. What is exactly up and down (unfinished)

    By CMaranon9.8,
    • 8 replies
    • 1.8k views

  7. Objective Frame of Reference

    By strontium,
    • 12 replies
    • 1.8k views

  8. Time

    By strontium,
    • 3 replies
    • 821 views

  9. Curvature in space-time is shown as a "fabric" 1 2 3

    By pmourad,
    • 63 replies
    • 7.9k views

  10. Weekend smileteaser.

    By studiot,
    • 2 replies
    • 802 views

  11. Gravity as refraction

    By rjbeery,
    • 1 reply
    • 788 views

  12. Does a Static EM Field Acquire Mass Due to Stored Energy? 1 2 3

    By exchemist,
    • 71 replies
    • 6.2k views

  13. THE WORLD’S FIRST WARP BUBBLE FINALLY CREATED?

    By beecee,
    • 9 replies
    • 3.1k views

  14. Does length contraction imply a superposition of particles? [answered: no] 1 2 3 4

    By 34student,
    • 90 replies
    • 7.4k views

  15. Is the block universe just a whole bunch of world lines (from the elementary particles)? 1 2 3

    By 34student,
    • 55 replies
    • 5k views

  16. Could someone please explain that although we are told the universe is expanding.

    By Geniuscfcp,
    • 4 replies
    • 1.2k views

  17. Requirement for two "nows" to grasp the idea of Simultaneity 1 2

    By tar,
    • 39 replies
    • 3.7k views

  18. Quick relativity of simultaneity and length contraction thought experiment

    By md65536,
    • 5 replies
    • 1k views

  19. Length contraction in a block universe must be an illusion 1 2 3 4 6

    By 34student,
    • 139 replies
    • 11k views

  20. Total newb question

    By kjp,
    • 7 replies
    • 1.2k views

  21. What experimental verification exists to substantiate that light from a receding light source travels at c to a relatively stationary destination?

    By jamesfairclear,
    • 15 replies
    • 1.5k views

  22. The smallest receiver

    By geordief,
    • 2 replies
    • 814 views

  23. Special Rel. Doubt

    By mathematic,
    • 7 replies
    • 1k views

  24. The equivalence principle and weightlessness. 1 2

    By geordief,
    • 29 replies
    • 3.1k views

  25. Tensor

    By Lizwi,
    • 7 replies
    • 1.1k views
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