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Physics
Special and General Relativity
Flat time slices in Gullstrand–Painlevé coordinates?
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[QUOTE="PeterDonis, post: 6168260, member: 197831"] The simplest way to think of it is that the spacelike slices of constant Painleve coordinate time are cut "at an angle" relative to the spacelike slices of constant Schwarzschild coordinate time, and the difference in the angle of cut is just enough to make the distance between two 2-spheres with surface areas ##4 \pi r_1^2## and ##4 \pi r_2^2## equal to the Euclidean distance ##r_2 - r_1## in the Painleve slices, instead of the larger distance that it is in the Schwarzschild slices. [/QUOTE]
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Forums
Physics
Special and General Relativity
Flat time slices in Gullstrand–Painlevé coordinates?
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