Originally Posted By: Bill S.
Quote:
the top of the plane is 50 ft higher than the ground.
it is moving faster than the ground.


This statement has no real scientific meaning unless you specify what the movement is relative to.

If any part of the plane were moving relative to the ground, the plane would not be stationary relative to the ground.

Can we agree on that?

All of that's true isn't it.

A point on the plane 50' higher than a point on the ground would, in 24 hrs, describe a circumference around the Earth 314' greater than that of the point on the ground. The plane and the ground beneath it remain in the same relative locations. In other words, the given point on the plane travels through local space faster (by 314' per day).

"Time is what prevents everything from happening at once" - John Wheeler