Finished my exam :)

Relativity which is only my exam is very interesting !!
For the first time I knew relativity, I was 12 years old. Then I didn't understand it, but now, I didn't yet.There is a long way to go.

First, we considered 'TIME' and 'LENGTH', and some paradoxes. For example, Twin paradox and Bell's spaceship paradox. Using easy mathmatics, we understand these.
Secondly, we study Lorentz transformation. It is hard for me to understand, especially, Lorentz transformation of maxwell equations. I can understand math but didn't know physical thinking. Physics is between math and phenomena.