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aOvJiCaHsKW7, WQtt20Ot5YI, 15 января 2019 года в 15:09:01

В ответ на : flueldfup zpfdg от flueldfup в 12 января 2019 года в 21:27:34:

may c j, what you have is an argument for a definition that some textbooks use, and some don’t. The concept of relativistic mass is just as legitimate as the FitzGerald contraction. You could likewise argue that the lengths do not really contract, but it appears that way when measured in another frame. There are some advantages to saying that the mass changes, but you ignore those.

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> may c j, what you have is an argument for a definition that some textbooks use, and some don’t. The concept of relativistic mass is just as legitimate as the FitzGerald contraction. You could likewise argue that the lengths do not really contract, but it appears that way when measured in another frame. There are some advantages to saying that the mass changes, but you ignore those.

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