Why Do Mirrors Reverse? Feynmans Mind-Blowing Answer

Описание: You raise your right hand, and your reflection raises its left. You hold up a book, the words appear backwards. Everyone knows mirrors reverse things—left becomes right, right becomes left. But here's the question that will frustrate you: why do mirrors reverse left and right, but not up and down? Your head doesn't appear where your feet should be. The ceiling is still at the top, the floor at the bottom. So what's special about the horizontal axis?

Most people can't answer this. And once you realize you can't explain something so simple and obvious, everything you thought you understood about mirrors falls apart.

But here's what Feynman would tell you: the question itself is broken. Mirrors don't reverse left and right. They never did. And you've been fooled by your own brain your entire life.

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SOURCES:

📚 The Feynman Lectures on Physics, Volume I, Chapter 26, "Optics: The Principle of Least Time"
Available free online at: https://www.feynmanlectures.caltech.edu/

📚 The Feynman Lectures on Physics, Volume I, Chapter 27, "Geometrical Optics"
Available free online at: https://www.feynmanlectures.caltech.edu/

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