Ok, Lets forget all the analogies. Dynos arent a good example, they only move the wheels. A treadmill will move the whole object.

How about the analogy of a plane on a treadmill.

A plane sits on a treadmill, on a calm day, no wind, it is 72 degrees. There is a tree in the ground next to the plane even with the tail.
Now, the treadmill starts to move, the plane starts to move backward on the treadmill. The pilot looks out his window and sees the tree moving from behind him towards him, as the plane is moving backwards on the treadmill. Now the engines start to push the plane to the speed of the treadmill, the tree is now even with the pilot as the engines push the plane, to be even with the tree, on the treadmill. Now as the engines push more the treadmill goes faster, the pilot can look out his window and see the same tree, not moving.
The engines push faster, the treadmill moves faster, the tree is still even with the pilot as he looks out his window. The air around the wings of the plane is as still as the trees next to the plane, the pilot can move his flaps all he wants, he does not have the air resistance to take off.