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| Re: Mass And Gravitational Force
Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Zephram Cochrane/">Zephram Cochrane on February 8, 2000 20:31:53 UTC |
pmb "However when measured locally it's always "c" (as measured in an inertial frame). Near the Sun the speed of light is given by c' = (1 - 2GM/r) (G=c=1)" Not exactly, the coordinate speed of radial moving light is c' = (1 - 2GM/rc2)c. Light moving perpendicular to the displacement to the sun moves at a coordinate speed of c' = (1 - 2GM/rc2)1/2c. The coordinate speed not only depends on location, but also on direction.
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