Confusing definition of proper time – which is correct?
Dec 4, 2019 · Hi Mark, I think you are confusing two things. Proper time is by definition the time experienced by a single observer. The time you experience is your proper time. The time that ticks …
Which observer's time is proper time? - Physics Stack Exchange
A linguistic point. “Proper” in this context doesn’t mean “right, not improper or bogus”. It means “belonging or pertaining to the owner”. My proper time is my time that belongs to me, not some …
What is proper time, proper velocity and proper acceleration?
May 3, 2020 · The proper time between the creation and decay of such a muon is about 2 micro-seconds, and the time as observed by time-measuring devices fixed relative to Earth is about 50 …
spacetime - Difference between coordinate time and proper time in ...
Jul 29, 2020 · The proper time $\Delta \tau$ along a path between two events is the time measured by an observer traveling along that path. I understand this in the context of special relativity. However, in …
Understanding instantaneous rest frames in general relativity
Nov 8, 2024 · In special relativity, to derive formulas for proper time and proper distance, one uses the concept of instantaneous rest frames. In order to calculate proper time of a massive object moving in …
spacetime - Meaning of Proper time - Physics Stack Exchange
Jun 9, 2015 · Sorry for a bit of a basic question, but want to clarify things in my head. Is proper time quantified by the amount of physical process that an object, or physical system undergoes, for …
Proper time in general relativity - Physics Stack Exchange
Yes, the proper time along a timelike curve in relativity is very much analogous to the length of a curve. Just as the length of a curve is invariant under rotations, the proper time along a curve is invariant …
Why is proper time $d\tau$ equated to spacetime length $ds$?
Jun 17, 2022 · Note that if $ (ds)^2\leq 0$, we can't choose a rest frame and make an identification between proper time and arclength.
Difference between proper time and coordinate time
Feb 18, 2023 · Proper time is the time measured by a clock. Because it is the reading of a clock it has a direct and clear physical interpretation.
Does proper time have two different values or meanings?
Mar 22, 2023 · Proper time is always the time measured inside a given frame of reference (rest frame), or the time measured by another observer who is stationary (relative velocity is zero) relative to the first.