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Old May 5th 08 posted to sci.physics.relativity,sci.physics
bz
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Posts: 1,616
Default Time dilatation in circular motion

"El Enrrabadore-mor" wrote in
:


"Tom Roberts" escreveu na mensagem
...

One can analyze their experiment (including comparison to muon decay at
rest) in two different ways:
a) use the overall inertial frame of their storage ring
and apply SR.
b) use the equivalence principle of GR, and treat the LOCAL
acceleration of the stored muons as a gravitational field
and compute the gravitational time dilation in LOCAL
coordinates in which the stored muon is at rest.
These obtain the same answer.


Moreover:
Your a) appeals on velocity as the cause of
time dilatation.
Your b) appeals on acceleration (or gravity
by equivalence principle) to be the cause on
time dilatation.


It is not the velocity or the acceleration (in SR) that explains the time
difference.
It is the different trajectory.
Trajectory through space-time.


Physics say:
c) Acceleration is the time derivative of velocity.

My c) proves your a) and b) to be incompatible,
since time used on the derivative is ABSOLUTE
TIME.


a = dv/dt says nothing about ABSOLUTE time.

Where did you get the impression that it did?

dt is CHANGE in time.


How can a time derivative be based on absolute time
and the time himself not being absolute time?



Tom Roberts







--
bz

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.




--
bz

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

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