Ask Lemmy@lemmy.world · 9 个月前

Why does a mirror only flip left and right but not high and low?

Zachariah@lemmy.world to

Ask Lemmy@lemmy.world · 9 个月前

edit: Thank you to all who answered! I’m amazed at how many ways you came up with to answer this.

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9 个月前
Because the mirror doesn’t flip left and right; it flips front and back.

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