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I remember my mom being surprised to learn that the same force of gravity that pulls things "down" is the same force that causes the moon to orbit the Earth, and the Earth to orbit the sun. Don't know what they were teaching kids back then.
Some people are curious how things work, and others are content to live in a world of magic.
I don't know how old I was when I learned that the frontal shape of an object affects efficiency, but it was quite young. It was much later that I learned the importance of rear shape.
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