This is a block diagram of my site. See below for some additional navigation tips. Note that there are two sets of image pages: One set describes the images from a low to high power perspective; the other set assumes a high to low power approach. The images and text are tailored to the direction of your particular journey. When you select a negative power from the Index, you are sent to the Up path, on the assumption that you will be going from lower to higher powers. If you select zero or a positive power from the index, you jump to the Down path.
The pages are set up so that you can freely change direction at any point: Whenever you select a higher power you are sent to the up path, and you are put on the down path if you select a lower power. The main pages are color-coded: a red title and border for the down side and a blue title and border for the up side.
There is a completely separate presentation in the Frames section.
Plan to spend some time here. You may want to bookmark the Home page. There are over 200 pages and a growing collection of images and external links. I believe you will find this site worth some of your time.
On each of the main image pages, you may choose among several options: