Because as the airplane moves through the air, it is slowed by drag. This lowers the lift until ultimately it cannot support itself and it crashes.
Crash Science - 2005 Airplanes was released on: USA: 2 February 2007
Paper airplanes act differently when wind acurress. And it may be hard to fly. UNLESS it is flying in the way of the wind,which allows it to "flow on air."If you put a paper airplane in a mild, suttle wind way, it will go smoothly. But with rough, ragged windswill lead to a fatal crash of a piece of paper.
Lift makes paper airplanes fly, just as it does real planes.magic
Make paper airplanes...
They use weapons and they crash.
no
airplanes were invented in the united states
Lift makes paper airplanes fly, just as it does real planes.magic
Design can effect paper airplanes just as it does real aircraft. Paper airplanes can be a huge variety of designs and be specialized, just as real aircraft. This can be for style orfor performance.
they used airplanes
The number of paper airplanes possible would be a function of their individual sizes. It could be one paper airplane, or many.
Snowflakes, hearts, paper airplanes...