a lot.
Um no, and by the way, why are you asking this?
In a commercial airliner flying at cruising altitude, the air pressure inside the airplane is considerably higher than the air pressure outside. The air pressure outside is too low for people to breathe comfortably, so the interior is pressurized.
There is a non-profit organization called Flying Club which is ran by a range of members.
The outside
no! what kind of dumb question is that!
about -64*C
Flying a helicopter is hard for anyone who is not trained to fly it. However, for those with proper training, it is deemed to be very easy.
Los burros estan volando afuera
He showed his patriotism by flying a flag outside his home.
Apparently not--the US Air Force doesn't accept anyone with less than 20/20 vision into its flying program.
Flying buttresses are supports for a wall, located outside of the building. Used mostly in Gothic cathedrals. See https://en.wikipedia.org/wiki/Flying_buttress