Cost safety, running economy, functionality, environmental impact
One major challenge in building an airplane is keeping it up in the air. Since airplanes are heavy, they need to work to be able to stay above the very light air. Other challenges include carrying enough fuel to get them safely to their destination and pressurizing the air to make it safe for humans.
it was to high an with all the people in the way
that they had to mantain the air pressure to the outside
Yes long time ago like 1000 years ago a tall building was made but there was a airplane that crashed into the building and 50000 people died in the building and the airplane as well.
that they had to mantain the air pressure to the outside
from an airplane and from the top of the empire state building
Some challenges were to get it to stand up without falling over and figuring out how long would it take to finish building.
bla bla bla bggg ds
Nothing went wrong, but this awnser may be wrong.
Bunyups are real my mom told me.
The curvature of the Earth had to be taken into account when the bridge was built.
glass and concrete