Rindler Question: Time Dilation in Born Accelerated Frame

  • Thread starter Thread starter Austin0
  • Start date Start date
Austin0
Messages
1,160
Reaction score
1
If I understand correctly; in a Born accelerated frame the degree of time dilation is related to the location in the frame.
Greater dilation happening at the rear where there is greater thrust and acceleration.

1) Is this relative dilation factor constant or does it increase with greater instantaneous relative velocity??

2) I have read that relative distance between points is constant and can be measured as such by radar.
If the clocks are dilated at those points of measurement how can the measurements be the same in both directions (-x)<---->(x) ?

Thanks
 
Physics news on Phys.org
1) Is this relative dilation factor constant
Yes.
2) I have read that relative distance between points is constant and can be measured as such by radar.
Yes and almost yes.
If the clocks are dilated at those points of measurement how can the measurements be the same in both directions (-x)<---->(x) ?
They aren't. What Rindler calls "Radar Distance" depends on direction.
A better definition is the distance as measured by an infinitelimal number of such radar observers, each measuring a small segment. The result is Rindler coordinate distance = proper distance along Rindler simultaneity slices.
 
I started reading a National Geographic article related to the Big Bang. It starts these statements: Gazing up at the stars at night, it’s easy to imagine that space goes on forever. But cosmologists know that the universe actually has limits. First, their best models indicate that space and time had a beginning, a subatomic point called a singularity. This point of intense heat and density rapidly ballooned outward. My first reaction was that this is a layman's approximation to...
Thread 'Dirac's integral for the energy-momentum of the gravitational field'
See Dirac's brief treatment of the energy-momentum pseudo-tensor in the attached picture. Dirac is presumably integrating eq. (31.2) over the 4D "hypercylinder" defined by ##T_1 \le x^0 \le T_2## and ##\mathbf{|x|} \le R##, where ##R## is sufficiently large to include all the matter-energy fields in the system. Then \begin{align} 0 &= \int_V \left[ ({t_\mu}^\nu + T_\mu^\nu)\sqrt{-g}\, \right]_{,\nu} d^4 x = \int_{\partial V} ({t_\mu}^\nu + T_\mu^\nu)\sqrt{-g} \, dS_\nu \nonumber\\ &= \left(...
In Philippe G. Ciarlet's book 'An introduction to differential geometry', He gives the integrability conditions of the differential equations like this: $$ \partial_{i} F_{lj}=L^p_{ij} F_{lp},\,\,\,F_{ij}(x_0)=F^0_{ij}. $$ The integrability conditions for the existence of a global solution ##F_{lj}## is: $$ R^i_{jkl}\equiv\partial_k L^i_{jl}-\partial_l L^i_{jk}+L^h_{jl} L^i_{hk}-L^h_{jk} L^i_{hl}=0 $$ Then from the equation: $$\nabla_b e_a= \Gamma^c_{ab} e_c$$ Using cartesian basis ## e_I...

Similar threads

Back
Top