All Questions
Tagged with special-relativity observers
813
questions
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240
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Relativity, Lorentz Transforms and the time it takes to perceive
I've been working a bit at understanding relativity a bit more, and understanding Lorentz transformations. I want to make sure I understand the meaning of a Lorentz transofmration, and when to use it ...
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1
answer
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Travel time according to both traveling and resting observers
First, my understanding of time dilation, which is typically derived based on a clock that ticks every time a beam of light emitted from the floor is bounced back by a mirror on the ceiling. Such a ...
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answer
99
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Can light speed change relative to me?
If a light-emitting object is stationary relative to me, then the wavelength of the light emitted would be normal. However, if the object is moving away from me, then the wavelength of the light would ...
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On the distinction between frame of reference and observer
A Stack Exchange answer illustrates reference frame and observer as follows:
A frame of reference means a co-ordinate system and an observer is someone using that co-ordinate system. For example I ...
user390010
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Are quantum tunneling slow down by time dilation affected? [duplicate]
If i setup to clock to work at the same rate at stationary. The first clock operated on quantum tunneling. Setup electron to tunneling and repel another electron. Which acts as sensor. The second ...
-1
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4
answers
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Does the speed of light determine how slow time can move?
Since moving faster makes time move slower. Does that mean that there is an absolute minimum rate at which time passes? If so. Is there also a maximum?
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Observed time period in distant clock when moving towards it
Imagine, 2 persons ('A' & 'B') are 6 light years apart in space, stationary to each other and with no gravitation acting on anybody. Suppose 'B' starts his clock which also shows years, months and ...
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5
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A bar that appears straight in one reference frame appears bent in another?
Is there a relativistic effect at play that explains the following thought experiment, that I am unaware of?
The apparatus depicted in the image has two straight bars in the middle emitting light from ...
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4
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A thought experiment regarding special relativity [duplicate]
I am currently delving into the intricacies of Einstein's theory of relativity and striving to grasp its fundamental essence and implications.
Your assistance would be greatly appreciated.
Here's my ...
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4
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203
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How to apply the time dilation formula?
I am learning special relativity and still not sure how to correctly apply the time dilation formula. Take for instance the following example:
A spaceship leaves earth and travels to Alpha Centauri 4....
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4
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41
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Measurement of the velocity of a celestial body by means of (relativistic and classical) gravitational effects on clocks
Imagine a planet with the same properties as Earth, this time moving in an elliptical orbit around a black hole of a large number of solar masses. Also imagine that the surface of this planet is as ...
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Can we consider that the photons that were not and will never be detected live in a zero-dimensional space? [closed]
According to Einstein’s theory of relativity, any particle traveling at the speed of light experiences no passage of time. It follows that if a photon travels through space then within any two points ...
- 115
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Time desync with light delay: can we still "look into the future"?
I'm reasonably familiar with special relativity and its effect such as time desynchronization, but I'm having trouble understanding how these effects come into play when we also consider the time for ...
- 728
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Proper time of an accelerating particle
I am supposed to find the proper time of a particle whose worldline is given by:
$$\begin{align}
x(t) &= \frac{3}{2} a t^2\\
y(t) &= 2 a t^2\\
z(t) &= 0
\end{align}$$
where $a = const$ and ...
- 131
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Question on Example 5.9 of Prof. Hartle Gravity textbook
I'm reading the Gravity Hartle book (ed.2003) and I'm having trouble with the question in the last part of Example 5.9 - Frequency Measured by an Accelerating Observer. More specifically the problem ...
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