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

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SUMMARY

The discussion centers on the concept of time dilation, specifically gravitational time dilation, as it relates to the position of clocks at different heights in a building. It is established that a clock at the bottom of a building runs slower compared to a clock at the top due to gravitational effects, a phenomenon verified by experiments such as the Pound-Rebka experiment. The conversation also references the use of cesium clocks in airplanes to demonstrate measurable differences in time due to both gravitational and relativistic time dilation.

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  • Knowledge of the Pound-Rebka experiment
  • Basic principles of the Mössbauer effect
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:confused:
Is time runs faster at the top of a building or at the bottom...?
 
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what do you mean time runs faster?
Time neither runs faster nor slower..but passes by constantly.
 


No my dear
I'm talking about time dilatation
Relativity
General Relativity
Time dilate
time is like a river not like an arrow
 


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..?
 


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.
 


Rajini said:
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..?
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.
 


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..?
 


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..?
 


Rajini said:
you may feel that time goes slow or fast...But it doent in reality..
Yes, it does. It's called time dilation. It has been experimentally verified.
 
  • #10


bapowell said:
Yes, it does. It's called time dilation. It has been experimentally verified.

@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


Ahhh... you're good.
 
  • #13


Hmm,
verified by Mössbauer effect!
 

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