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Does the singularity travel along the time axis?
Let's assume that all matter travels along t axis roughly at the speed of light, in the direction of worldline for rest mass.
Let's also assume that there is a ...
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Time coordinate in general relativity [closed]
In special relativity, an inertial observer, for instance, in 1+1 dimensions, a world line of an object could be paramatrized, and the time measurement of the inertial observer between two points of ...
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