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.
Birds flying up in the sky do not cast their shadow because the source of light (sun) is too large compared to the object (bird) and the umbra of the shadow formed on the screen (ground) is very small, negligible.So it is tough to see its shadow on the ground. (P.S. If this is a VNS student reading this for Physics research, then I'm pretty sure you're in my grade and you know who I am)
The trajectory for this flying paper airplane is high.
The airplane was flying at a very high altitude.
They do cast a shadow, however they are so high up the shadow is very small
high speed travel like flying on an airplane
Wax paper works good for strong, high-flying planes.
When a bird fly too high from the surface of the earth it does not obstruct the light hence there is no formation of shadow on the earth.- Satish
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
Last I checked you cant help it if you happen to look down from a flying vehicle. And I don't think that you will get in trouble if happen to see a moose when you do so. First of all, vehicles (cars) can't fly. That's airplanes. Second, I don't think a moose will be visible from up high in the sky.....what kind of question is this? XD It is illegal in Alaska to push a moose out of a flying airplane though. I don't know why someone would push a moose out a airplane, or why the moose would even be in the airplane on the first place, but it must have happened before because why else would they have the law???