World Science Scholars
26.3 Spacetime Diagrams Essential Features

You must be logged in to reply to this discussion.
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.
Ary Wahyudi
Each of those 0's in your statement [x=0 (red line) and x’=0 (blue line)] corresponds to the origin of each coordinate system - which of course always stay as they are, at constant speed. Your notion of t' is actually one that's illustrated by the moving "nowline".

Share with others

Select this checkbox if you want to share this with all users

Select Users

Enter the usernames or email IDs of the users you want to share with

Please enter message

Explain why you want them to see this

Send this to a friend