Undergrad What is the proper time of a vertically moving inertial clock?

Click For Summary
The discussion focuses on calculating the round trip elapsed proper time of a clock moving vertically in a Schwarzschild geometry, specifically under the influence of gravity without any propulsion. The user seeks an equation to determine this time for a clock that ascends to apogee and returns, maintaining inertial motion throughout. References to relevant calculations and papers are provided to aid in understanding the problem. The inquiry highlights the complexities of gravitational effects on time measurement in general relativity. The conversation emphasizes the need for a clear mathematical approach to this scenario.
KDP
Messages
25
Reaction score
7
TL;DR
What is the elapsed proper time of vertically moving inertial clock in Schwarzschild geometry?
Hi. I am looking for an equation for the round trip elapsed proper time of a clock that is initially moving vertically straight up with a given initial velocity, reaches apogee and then returns to the starting location under gravity. I would like to use the external Schwarzschild geometry of a non rotating black hole to keep things as simple as possible. At all times during the the experiment the clock is moving inertially, so no rockets or thrusters involved (and no horizontal motion allowed).
 
Physics news on Phys.org
Is there any reason you can't do the calculation yourself?
 
PeroK said:
Is there any reason you can't do the calculation yourself?
Getting too old, I guess... :confused:
 
In this video I can see a person walking around lines of curvature on a sphere with an arrow strapped to his waist. His task is to keep the arrow pointed in the same direction How does he do this ? Does he use a reference point like the stars? (that only move very slowly) If that is how he keeps the arrow pointing in the same direction, is that equivalent to saying that he orients the arrow wrt the 3d space that the sphere is embedded in? So ,although one refers to intrinsic curvature...

Similar threads

  • · Replies 54 ·
2
Replies
54
Views
4K
  • · Replies 11 ·
Replies
11
Views
2K
Replies
11
Views
2K
  • · Replies 10 ·
Replies
10
Views
4K
Replies
8
Views
2K
Replies
4
Views
3K
  • · Replies 13 ·
Replies
13
Views
3K
  • · Replies 58 ·
2
Replies
58
Views
7K
  • · Replies 40 ·
2
Replies
40
Views
5K
  • · Replies 18 ·
Replies
18
Views
2K