This is a presentation housed on a server at Manchester University and may take a minute or so to load on slower or heavily used internet connections but it will load. You may run the presentation much like you run a YouTube presentation by moving the small dot at the bottom of the screen, from left to right across the screen. You may have to click on the triangle near the bottom left of the presentation to cause it to turn on. (2 parallel lines appear) Play with it for a while to see how it works for you. (You really have enough time to do this.)


Click on the following link to view this presentation.