The wheels and treadmill are irrelevant.
Assuming the air is still, the engines provide thrust and will move the airplane relative to the air, thus providing lift.
Assuming the air is still, the engines provide thrust and will move the airplane relative to the air, thus providing lift.
Skepticism is not a position; it is an approach to claims.
Science is not a subject, but a method.
Science is not a subject, but a method.
