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科学素养与生活应用·英语30篇(9)

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Why Mirrors Flip Left and Right, Not Up and Down

Why Mirrors Flip Left and Right, Not Up and Down

为什么镜子左右翻转却不上下翻转

  1. Mirrors don’t flip left or right—they flip front to back.
  2. When you face a mirror, your nose points toward it.
  3. The reflection’s nose also points forward, not backward.
  4. So your left hand appears on the mirror’s right side.
  5. It’s like turning a page—you see the back, not a rotation.
  6. Try pointing up: the mirror shows up, not down.
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