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Results tagged with thought-experiment
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user 165299
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.
15
votes
Photon thought experiment
The easiest way of seeing what happens is to draw a space-time diagram. The stationary box walls form two vertical parallel lines with a 45 degree zigzag path for the photon as it bounces between th …
- 33.4k
2
votes
Density of infinite gas cloud
The answer is zero. Really.
The Schwarzschild radius of a mass $M$ black holes is $R=2GM/c^2$. So black holes have "density" (scare quotes because volume acts up a bit in curved spacetime, but we wil …
- 33.4k
0
votes
Accepted
How to prove that shadows in the cave aren't talking?
The physicist should want to demonstrate whether talk and shadows have a necessary relationship, or that they are independent.
If you can do experiments things are fairly easy. As RetroCausalElectro …
- 33.4k
2
votes
What's the relation of entropy with synchronisation?
Pendulum synchronization happens because of energy exchange between two oscillators. In a perfectly frictionless, isolated system this would not increase entropy at all, and the pendulums would keep o …
- 33.4k