Test your airplane knowledge! Culled from Kate Ascher’s new book, The Way We Go: Moving By Sea, Land, and Air .
Think of lift this way: Pretend your hand is a wing, and you stick it outside a moving car. As air that was unmoving is now pushed down and behind your hand, the void is filled with air from above your hand, where pressure is now lower. Lift is the difference of pressure between the two sides of your hand.
