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| | [No title] (Site not responding. Last check: 2007-11-04) |
 | | However, relativistic gravitostatics is already a bit different from Newtonian gravitostatics because all forms of mass-energy gravitate, and since the gravitational field has energy, it gravitates; thus, Einstein's field equation is necessarily nonlinear. |
 | | In practice, this means that in gtr, static gravitational fields in a vacuum tend to be a bit stronger than the corresponding Newtonian gravitostatic vacuum field. |
 | | This is because in gtr, all forms of mass-energy, including the field energy of the gravitational field itself (spacetime curvature), gravitate. |
| math.ucr.edu /home/baez/PUB/tidal (2211 words) |
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