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→[[Theory of Relativity/draft]]
::: I'll try to put in an explanation if no one else does. Currently, there are two relativity pages, and both need a lot of work. [[User:RSchlafly|RSchlafly]] 18:15, 28 March 2007 (EDT)
::: I'll try to put in an explanation if no one else does. Currently, there are two relativity pages, and both need a lot of work. [[User:RSchlafly|RSchlafly]] 18:15, 28 March 2007 (EDT)
:::GR generally operates in curved spacetime; in SR spacetime is always flat. But if you plug a flat spacetime into the equations of GR, SR is what falls out. The connection is not only quite deep, but very useful too; in any smooth, curved space, one can always pick a sufficiently small patch such that curvature can be safely neglected. In practical terms, this means that any observer can always choose to work within a region of spacetime small enough to make SR an arbitrarily good approximation. [[User:Tsumetai|Tsumetai]] 04:07, 29 March 2007 (EDT)