Why do mirrors flip left-and-right but not up-and-down? | Hacker News

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		Why do mirrors flip left-and-right but not up-and-down? (bigthink.com)
		2 points by kloch on April 20, 2023 \| hide \| past \| favorite \| 1 comment

HelloNurse on April 20, 2023 [–]

An excellent test question for introductory physics students.

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