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The 4 forces

  1. Sep 19, 2010 #1
    The electromagnetic force has been observed to
    connect with the weak force to produce the
    so-called electroweak force.

    Is our next goal to observe a gravitystrong force?

    Or a gravityelectroweak force?

    Or a strongelectroweak force?

    Or a srtongelectroweakgravity force?
  2. jcsd
  3. Sep 19, 2010 #2
    Your "strongelectroweak force" is more commonly known as a Grand Unified Theory (GUT), and has been under consideration for decades. The other three all require a quantum theory of gravity, which is a tall enough order all by itself.

    Last edited: Sep 19, 2010
  4. Sep 19, 2010 #3
    When referring to a charge in motion we say
    electromagnetic. Would it not then be analogous
    to call gravity in motion, gravoinertial?

    Thanks for the heads-up concept of GUT.
  5. Sep 19, 2010 #4
  6. Sep 19, 2010 #5
    Let me put it another way. If we refer to
    electromagnetic waves...would it be analogous, then,
    to say gravoinertial waves instead of gravity waves?

    IE, these waves have perpendicular components and
    inertia seems to be perpendicular to gravity.
  7. Sep 19, 2010 #6
  8. Sep 19, 2010 #7
    came up with it outa my own pea brain.
    Gravitomagnetic waves are mentioned
    in wiki...so maybe somebody might call
    them gravitoinertial waves. Anyway,
    what would the orthogonal component
    be for a gravitational wave? Space, time,
    space-time? Or would it be inertia?
  9. Sep 19, 2010 #8
    Or maybe there's no orthogonal component. Have you thought about that?
  10. Sep 19, 2010 #9

    Vanadium 50

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    Reminder: PF exists to help students learn the current status of physics as practiced by the scientific community. If "gravoinertial waves" are a new idea, they don't belong here. If they are an existing idea with a new name, we should use the standard name in discussing them.
  11. Sep 19, 2010 #10
    Dear Vanadium50,
    If you have an opinion or knowledge of what the orthogonal
    components of a gravitational wave are or would be, then
    please share with us. Just trying to change the subject is
    not fair. If, as wiki mentions, they are gravitomagnetic
    waves in nature, then be constructive. My opinion is that
    there must be orthogonal components for Maxwell's
    explanation of EM waves to apply. This is an invitation
    to join the discussion.
  12. Sep 19, 2010 #11
    Maxwell's explanation of EM waves seems to require orthogonal
    components for the wave to advance in space. Do you have any
    evidence that a wave can move without an orthogonal component?
  13. Sep 19, 2010 #12
    But gravity and electromagnetism are different forces, with different laws.
  14. Sep 19, 2010 #13
    Yes, I am being draged, kicking and screaming, to the truth...
    and am all the better for it...thanks muchly.
  15. Sep 19, 2010 #14
    the distance till which the strong nuclear force is applicable is very small and gravity exerts force on everything.........
  16. Sep 19, 2010 #15
    Are you saying that this makes the strong and the gravity, NOT able
    to be unified like the EM and the weak, or the opposite, or something
  17. Sep 19, 2010 #16
  18. Sep 19, 2010 #17
    well an interesting thing is that some physicists are trying to include even SPIN as a 5th fundamental force........
  19. Sep 19, 2010 #18
    The strong nuclear force CAN NOT be unified with the gravitational force,
    because they are so different?

    And, I guess, the EM force is similar to the weak force, then?

    I can accept this, please continue...
  20. Sep 19, 2010 #19
    i think we may be able to join the electromagnetic and gravitaional force as they both have a range upto infinity....
  21. Sep 19, 2010 #20
    EM is already joined with the weak...do you mean it can join with
    both the weak and the gravity, or do you mean either the weak or
    the gravity?
  22. Sep 19, 2010 #21
    i mean weak or gravity
  23. Sep 19, 2010 #22

    And strongelectroweak (GUT) is a dead end?
  24. Sep 20, 2010 #23
    The range of the forces is completely irrelevant. We already have a quantum field theory of the strong and electroweak interactions. It's called the standard model. We do not have a robust theory of quantum gravity, which will be needed before we can even think about unifying all four forces in a "theory of everything".

    The Wikipedia articles I posted earlier have some information. Read them, and references therein.
  25. Sep 20, 2010 #24
    i like your post daschiach
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