All Questions
4
questions
41
votes
4
answers
5k
views
Rotate an object about the time axis
Is there a notion of rotating an object about its time axis? I'm not sure if this question totally makes sense, but it seems intuitive to me that an object with dimensions in the three spatial ...
- 521
1
vote
0
answers
34
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A point on a disc travelling at the speed of light [duplicate]
This might be a duplicate of this.
I had an interesting thought experiment: suppose that you have a disc of a 1 m radius, where a point P2 inside the disc travels at the speed of light. You have a ...
- 11
0
votes
0
answers
173
views
Confusion in Special Relativity: Rotating frame of reference
Suppose we are observing a rotating frame from an inertial frame, free from gravity, and try to measure the circumference of a circle drawn in the rotating frame. Since our measuring rod would be ...
- 112
13
votes
3
answers
6k
views
Distance in relativistic circular motion in invariant spacetime
I understand that the closer something travels to the speed of light, that time will stretch by a factor, and distance will compress by the same factor.
My question is, if something travels in a ...
- 235