ABSTRACT
You may have already heard some things about relativity. Perhaps you have heard that it says strange things about time and length, or it does not make sense (i.e., it does violence to your intuition), or only twelve people in the world understand it. The rst two statements are true, but the last is certainly not. While some of the ideas of relativity will indeed initially do violence to your everyday intuition, they also follow logically. Hopefully by the end of this chapter, you will have a fairly good understanding of relativity.
