- #1

rjbeery

- 346

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From http://cpl.iphy.ac.cn/EN/Y2008/V25/I5/1571 we can see that light curvature can be analogously described via a material with a graded index refraction, so my question is really whether or not the following is is capable of encompassing GR:

[tex] t_0 = t_f \sqrt {1 - \frac{r_0}{r}}

\frac{t_f}{t_0} = \frac{1}{\sqrt{1 - \frac{r_0}{r}}} = [/tex]analogy to "n" in optical medium