World Science Scholars
26.3 Spacetime Diagrams Essential Features

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Marius Smallegoor
At the end of yhe video you see a blue and a red axis at the left of the screen and the moving blue nowline of the moving frame at the right of the screen. In the video the time at x=0 (red line) and x'=0 (blue line) stay the same, This cannot be because t'= t/γ.

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