this post was submitted on 26 Dec 2024
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Common misconception. Mirrors reflect images, but do not flip them. If you put two items next to each other, their order is preserved in the reflection, not inverted.
The reason people think mirrors are flipped is because writing on shirts appear backwards, but that's because your shirt is facing the wrong direction. Write a word on something clear and hold it up to a mirror. It's not flipped. Put the word up against your chest like it was written on your shirt. Notice how you flipped the word in order to do that.
It is flipped. The mirror is showing you the reverse side of the card, so the image in the mirror is flipped twice. Two flips make a normal. A person looking at that card from the mirror side would see it as reversed, but the mirror flips it again so it looks normal to you.
Yup! See the guy's finger is on the reverse side of the card? It's touching the N on the right side of your view. If you looked at it from where the mirror is, you'd see the guy's finger touching the N, but now it's on the left side of your view. Because you flipped, not the writing.