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A childhood belief about physics

I used to think that when you squint your eyes and go a little crosseyed, and you see the little spots and bubbles floating around that I could see air molecules (this was shortly after learning about solids, liquids, and gases, and how gas molecules are loosely scattered). I told my dad this and he tried to explain the truth to me, but I believed the molecule theory for a long time.

— Katie

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