Can anyone explain what page eleven, "Tomography," is supposed to mean? The example on the previous page seemed straight forward, when I got to page eleven I had no idea what I was looking at.
I understand what tomography is. I am curious how to interpret the three images and the differences. What does this page demonstrate to the reader? To me they look almost exactly the same. The one big difference is that the original has the the intersecting arrows. (I am also not really sure what the arrows are supposed to convey.)
If you don't know what the arrows represent then you maybe don't understand what tomography is after all.