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I think I understand how, using Lorentz transformations, I can find relative speeds of objects within different frames of reference. However, I'm struggling to transfer that understanding to distance. I'm sure that the distance as measured by observers within two different references must be different, but if I know the relative speeds, and I have a distance as measured by one observer, how do I translate that into distance as measured by the other observer?

I'm not sure if I should be looking for an understanding by complicating this or simplifying it. Maybe I'm missing something obvious here.

Many thanks for your help.

Bob

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# Question Regarding Distances Using Special Relativity

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