Also this may be a whole other post I need to make but bonus question for anyone interested in answering: Why can I perceive the tilt(like the cabin is angled more towards the sky or is leaning to the left or right) of the airplane cabin even though I am in the same upright position in relation to the actual cabin itself?
In: Physics
Part 1: it’s so that they can climb to a higher altitude while impacting the littlest possible area around the airport. Airplanes flying overhead are noisy. The area immediately around an airport has to deal with it because they are already near an airport. But if the airplanes are required to spiral up/down, then the areas a little farther away from the airport don’t have to deal with it at all because the plane is already so high by the time it’s flying over those parts.
Part 2: It’s because of something called proprioception. Your ears have fluid and structures inside of them whose job it is to tell your brain how your body is situated in space (using the term space very genetically here – not pike outer space, just “in existence”). They signal of you are leaning forwards/backwards, left/right, diagonal, or any other way. They help you keep your balance. People who have problems with these “vestibular” structures often suffer debilitating vertigo.
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