Principle of relativity

Scientist found a picture which is photoed 50 years ago.It was Einstein when he was addressing his final lecture.What he was talking about that moment is of much importance even today.

He wrote that in Chapter1. POR:

M.Liang Liu is still unmarried and that is
much more important than the study of
principle of relativity.

And I am M.liang Liu !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Haha….
It was a game,want to Do It Yourself ?Click here!