zlacker

>>qqqqqu+(OP)
Flight. Apparently "air flows faster on the top side of the wing, lowering the pressure" is an incomplete explanation; I even heard we don't completely understand why it works (?!?).

>>tomp+fl
It directs air moving horizontally downwards, by conservation of momentum the wing must get additional upwards momentum, called lift.

>>contra+Cn
That can't be the explanation, otherwise wings wouldn't need to be curved - flat wings could fly, as long as they're tilted to redirect the air.

>>tomp+Qn
Flat wings can and do fly just fine, they are just a bit less efficient. The teardrop shape and camber/cupping underneath just make the winds more efficient at slicing through the air without creating as much turbulence and drag.