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- Eddington–Finkelstein_coordinates abstract "In general relativity, Eddington–Finkelstein coordinates are a pair of coordinate systems for a Schwarzschild geometry (i.e. a black hole) which are adapted to radial null geodesics. Null geodesics are the worldlines of photons that are moving directly towards or away from the central mass. They are named for Arthur Stanley Eddington and David Finkelstein, even though neither ever wrote down these coordinates or the metric in these coordinates. They seem to have been given this name by Misner, Thorne, and Wheeler in their book Gravitation.They are sometimes also called tortoise coordinate - a name that comes from one of Zeno of Elea's paradoxes on an imaginary footrace between "swift-footed" Achilles and a tortoise.Outward (inward) traveling radial light rays (such as a null geodesic) define the surfaces of constant "time", while the radial coordinate is the usual area coordinate so that the surfaces of rotation symmetry have an area of . One advantage of this coordinate system is that it shows that the apparent singularity at the Schwarzschild radius is only a coordinate singularity and is not a true physical singularity. While this fact was recognized by Finkelstein, it was not recognized (or at least not commented on) by Eddington, whose primary purpose was to compare and contrast the spherically symmetric solutions in Whitehead's theory of gravitation and Einstein's.".
- Eddington–Finkelstein_coordinates wikiPageID "293670".
- Eddington–Finkelstein_coordinates wikiPageRevisionID "599319218".
- Eddington–Finkelstein_coordinates subject Category:Coordinate_charts_in_general_relativity.
- Eddington–Finkelstein_coordinates comment "In general relativity, Eddington–Finkelstein coordinates are a pair of coordinate systems for a Schwarzschild geometry (i.e. a black hole) which are adapted to radial null geodesics. Null geodesics are the worldlines of photons that are moving directly towards or away from the central mass. They are named for Arthur Stanley Eddington and David Finkelstein, even though neither ever wrote down these coordinates or the metric in these coordinates.".
- Eddington–Finkelstein_coordinates label "Eddington–Finkelstein coordinates".
- Eddington–Finkelstein_coordinates sameAs Eddington%E2%80%93Finkelstein_coordinates.
- Eddington–Finkelstein_coordinates sameAs Q5336608.
- Eddington–Finkelstein_coordinates sameAs Q5336608.
- Eddington–Finkelstein_coordinates wasDerivedFrom Eddington–Finkelstein_coordinates?oldid=599319218.