It work's by putting wind in-to it.
Because they can find a lot of information about it's flight characteristics in wind tunnels.
wind tunnels
Wind tunnels are different sizes.
Zhou Changhai has written: 'Integral method of wall interference correction in low-speed wind tunnels' -- subject(s): Wind tunnels
Not that I can find!
ask your teacher
no
A strong wind that can bring heavy rain
Robert J. Bruckner has written: 'A supersonic tunnel for laser and flow-seeding techniques' -- subject(s): Wind tunnels, Supersonic wind tunnels, Flow visualization
A wind tunnel is used to simulate air flow over a model of an airplane or a wing section so it can be studied. The model can be instrumented to measure the lift and drag and other parameters for study. The wind tunnel can produce air flow at the desired speed and condition. Engineers may use a wind tunnel to study and design a wing shape. The Wright Brothers developed the first wind tunnel to design the shape of the wing for their airplane. Wind tunnels can be used to study interference between parts of the aircraft or between an airplane and a bomb as it drops away. There are different types of wind tunnels: low speed wind tunnels, supersonic wind tunnels and hyper-sonic wind tunnels.
Wind tunnels charge you by the minuite, but if you buy larger blocks of time, you can get a discount. Also, some wind tunnels charge less for off-peak times. See the related link for more information.