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Mar9-12, 08:11 AM
Other thing I want to point out is in wiki
In an inertial reference frame S', [itex]x'_1[/itex] and [itex]x'_2[/itex] shall denote the endpoints for an object of length [itex]L'_0[/itex] at rest in this system.
So, [itex]L'_0[/itex] at rest in S', and so [itex]L'_0[/itex] is proper length in S', and so we should have [itex]t'_1=t'_2[/itex].
Where in the Wiki article does it say that t'