Quote Originally Posted by Bruce Watson View Post
BTW, if you are standing on your head looking at the ground glass, it's you who have flipped twice. Once horizontally (which puts you on your head looking away from the ground glass) and once vertically (flips you 180 degrees so you are looking at the ground glass).
What if I just do a cartwheel and stand on my hands. I am only rotated and not flopped. Just once.