A pilot come to my school
I ask about some plane mechanic
Then my friend say
"You know why plane can fly?"
"Why?"
"Because it has metal"
Its 11th grade
English
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https://m.youtube.com/watch?v=lK8Hf7x1UPQ Relevent.
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Well if he hasn't figured out yet still, show him what I'm about to say: Airplane wings are shaped to make air move faster over the top of the wing. When air moves faster, the pressure of the air decreases. So the pressure on the top of the wing is less than the pressure on the bottom of the wing. The difference in pressure creates a force on the wing that lifts the wing up into the air.