No I'm afraid I'm a dirty rotten thief.
I'll try to find the original link for you. Its quite a good animation on youtube
Edit: Yes, here it is - www.youtube.com/watch?v=Nw7Wh1rRHZA
( ,
Wed 3 Aug 2011, 14:26,
archived)
Edit: Yes, here it is - www.youtube.com/watch?v=Nw7Wh1rRHZA