We cannot see the shadow of an airplane flying high in the sky because the altitude is too great for the shadow to be cast clearly on the ground. The sunlight is typically too diffuse at that height, and the shadow is often too small and faint to be noticeable. Additionally, the ground beneath the airplane is vast and uneven, making it difficult for the shadow to appear distinct. Lastly, atmospheric conditions and obstacles on the ground can further obscure any potential shadow.
It is visible, but quite big and moving very fast so you cannot see it from the ground. -It is often very visible from other aircraft.
About 4.2 miles.
The trajectory for this flying paper airplane is high.
The airplane was flying at a very high altitude.
when an object is closer to the light source,the larger and fuzzier is the shadow.also if the object is moved away from the screen,the shadow is fuzzier.therefore the bird which is close to sun and away from the ground casts a fuzzier shadow in the atmosphere which cannot be seen
high speed travel like flying on an airplane
Wax paper works good for strong, high-flying planes.
Airplanes do not fly high enough to be unaffected by the force of gravity.
If you're standing on the ground, then the plane's shadow is too small,and it moves too fast.Hint: The shadow is on you only when you see the plane fly across the sun.It's much easier to see the shadow when you're in the plane.
40000 feet = 7.6 miles
Not quite sure what you're looking for here, but generally, when an airplane stops going up...the houses get bigger. If you mean the airplane is flying with its nose pointed almost vertical----then most aircraft will eventually lose its speed and stall. Only a few exceptional aircraft have enough power to continue flying vertically. However, if you think about it, even they will fly so high that there will not be enough atmosphere and the engines will flame-out and he will fall.
A person would experience the least atmospheric pressure at high altitudes, such as on top of a mountain or in an airplane flying at high altitude.