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Is time runs faster at the top of a building or at the bottom ?

  1. Mar 31, 2010 #1



    :confused:
    Is time runs faster at the top of a building or at the bottom...?
     
  2. jcsd
  3. Mar 31, 2010 #2
    Re: Help....!

    what do you mean time runs faster?
    Time neither runs faster nor slower..but passes by constantly.
     
  4. Mar 31, 2010 #3
    Re: Help....!

    No my dear
    I'm talking about time dilatation
    Relativity
    General Relativity
    Time dilate
    time is like a river not like an arrow
     
  5. Mar 31, 2010 #4
    Re: Help....!

    Okay..
    Anyway, Time does not run fast or slow...it is always same unless you increase the movement of gear wheel in the watch.
    But you may feel it runs slow at relativistic speed..
    But why did you tell about building top and bottom..?
     
  6. Mar 31, 2010 #5

    Dale

    Staff: Mentor

    Re: Help....!

    A clock at the bottom of a building will be seen running slow according to a clock at the top. The clock at the bottom is said to be gravitationally redshifted.
     
  7. Mar 31, 2010 #6

    bapowell

    User Avatar
    Science Advisor

    Re: Help....!

    So what's the difference between "feel it run slower" and have it actually run slower? The proper time as measured on the watch of a person at rest with respect to an event will always
    tick faster than a the watch of a person moving relative to this event. It has nothing to do with mechanics. Even the 'internal clocks' of muons that tell them when to decay are affected by time dilation.
     
  8. Mar 31, 2010 #7
    Re: Help....!

    Yes,
    you may feel that time goes slow or fast...But it doent in reality..
    Anyway a watch attached to the object (you are measuring time w.r.t. this object) gives the right value..
    BUT WHAT IS THIS:
    But why did you tell about building top and bottom..?
     
  9. Mar 31, 2010 #8
    Re: Help....!

    Yes,
    you may feel that time goes slow or fast...But it doent in reality..
    Anyway a watch attached to the object (you are measuring time w.r.t. this object) gives the right value..
    BUT WHAT IS THIS:
    But why did you tell about building top and bottom..?
     
  10. Mar 31, 2010 #9

    bapowell

    User Avatar
    Science Advisor

    Re: Help....!

    Yes, it does. It's called time dilation. It has been experimentally verified.
     
  11. Mar 31, 2010 #10
    Re: Help....!

    @Rajini: ...A very long time ago... Some clever lads took a cesium clock in an airplane and compared it to another on the ground. They found a measurable difference due to gravitational and (regular?) TD/DA. You need to study Gravitational Time Dilation.
     
  12. Mar 31, 2010 #11

    Dale

    Staff: Mentor

  13. Mar 31, 2010 #12
    Re: Help....!

    Ahhh... you're good.
     
  14. Mar 31, 2010 #13
    Re: Help....!

    Hmm,
    verified by Mössbauer effect!
     
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