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XKCD中文站,一个关于浪漫、隐喻、数字、以及语言的线上漫画。

Airfoil

Airfoil
This is a fun explanation to prepare your kids for; it's common and totally wrong. Good lines include 'why does the air have to travel on both sides at the same time?' and 'I saw the Wright brothers plane and those wings were curved the same on the top and bottom!'

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