You can't-flyers check out that thread that's been linked to about five times and scan for posts by TJ or JeffW. They've got good explanations. I like to think some of my analogies were pretty good, too.

One of my examples-The aircraft is already airborne and on approach to the conveyor/runway for a touch-and-go. The runway is spinning at exactly the same speed in the opposite direction, just like when it took off. Now, when the aircraft touches down (no brakes, remember, doing a touch-and-go) will it immediately come to a complete stop and be unable to take off again (do the "go" part)?