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### Time dilation explained using a light-pulse clock [duplicate]

I found an explanation of time dilation using a light-pulse clock in the book 'Concepts of modern physics' by Arthur Beiser: In this explanation, the clock is moving in a direction perpendicular to ...
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### Special relativity with horizontal mirror clock? [duplicate]

Every explanation video about special relativity comes with a constantly moving train and a vertical (according to the train's speed direction) mirror clock. So first of all, why in the classical ...
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### Why does time dilation imply length contraction? [duplicate]

This is probably a nonsensical question, but I'm having trouble wrapping my head around it. I'm thinking of the classic scenario where a stationary observer is watching a spaceship move horizontally. ...
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### Why is the photon clock equivalent to all clocks?

I can understand why, if the speed of light is invariant, a photon clock would tick slower. I find this explanation very useful in terms of introducing the idea of time dilation (also because it ...
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### Help Me Gain an Intuitive Understanding of Lorentz Contraction

I'm having a hard time getting an intuitive understanding of Lorentz Contraction. I understand what it is by definition but I don't 'get it.' I'm not a physicist, just an amateur, so sorry if this ...
510 views

### Does special relativity imply that time dilation is affected by an orientation of clocks?

Many texts about STR time dilation use as an example thought experiment with 2 mirror photon clock. The conclusion of this experiment is: In a frame moving relative to the clock, they will appear to ...
259 views

### Special relativity clarifiyng time dilation experiment

There is a well known 2 mirror clock time dilation thought experiment in STR. However it is a bit unclear to me due to its unrealistic nature. By unrealistic I mean that experiment implies that ...
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### Einstein's light clock [duplicate]

In Einstein's thought experiment involving light moving on a train, the mirrors the light is bouncing between are perpendicular to the train, and it is these mirrors that the formula for time dilation ...
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### Time Dilation and Length contraction - thought experiment

Sorry if this is obvious, but I've searched and cannot find this answered. taking a minor change to the light clock experiment on a traveling spaceship. putting the clock in the horizontal position,...
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### Time dilation in Einstein's train

Wikipedia states that a clock that is moving relative to [observer] will be measured to tick slower than a clock that is at rest in their frame of reference and they explain it using two pictures: ...
Say I am cycling past a Michelson interferometer set up. Someone at rest with the experiment will see both beams travelling a distance $L_0$ and hence conclude that $T_{AB}=T_{AC}=\frac{2L_0}{c}$. ...