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Results tagged with thought-experiment
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user 43351
Hypothetical situation in which, for simplification, only some physical aspects are considered in order to further understand or reveal contradictions between the laws governing them.
18
votes
Accepted
Ground → ship Wi-Fi bandwidth in my fast moving spaceship
If you are in a perfectly circular orbit, then your received signals are affected by the relativistic transverse Doppler effect.
The signals you would receive would be blueshifted by the Lorentz fact …
- 137k
11
votes
Taking selfies while falling, would you be able to notice a horizon before hitting a singula...
The answer must be closely related to my answer in Thought experiment - would you notice if you fell into a black hole? You can certainly use a similar Eddington-Finkelstein coordinate diagram to cons …
- 137k
4
votes
Accepted
Linear version of Faraday Paradox: different results in different inertial frames
There is no net force on the charged particles and no charge separation. If there were then you would have a way of invalidating Special Relativity because you would have a way of defining an absolute …
- 137k
3
votes
Thought experiment about wavelength of light through a medium
The size or path-length that the wave has nothing to do with it.
There are two explanations on offer for why the frequency of the radiation remains unchanged as it crosses the boundary between differ …
- 137k
2
votes
Can you find the length of a pencil without a ruler or clock?
Strip out the graphite from the pencil and make an estimate of the diameter of the "lead" compared to the length of the pencil. e.g. If the pencil is height $n$ metres, and the pencil "lead" has a dia …
- 137k