left - Dangerous Intersection

Why do mirrors seem to switch left and right, but not top and bottom?

I found a link to this video on Reddit: Physicist Richard Feynman explains why do mirrors seem to switch left and right, but not top and bottom.

Dana on About Those who Seek to Censor UsAbsolutely! 100%
Mr Natural on The Stoics and the Serenity PrayerExcellent point. Or, as the Steve Miller song exhorts, 'Wake up, wake up, wake up and look A-round y…
Anonymous on New ideas for sports competitionsunusual competitions
Anonymous on What would happen without public funding for family planning?law and social justice
Andrew Wahl on What Public Health Did that was not ForgivableSchools, such as Harvard University and the Ladue Public Schools, closed during the COVID outbreak;…
Paul on Jillian Michaels Comment on the Lack of Vaccine TestingMy wife and I have been talking about this to our families and friends for many years (prior to the…
Charles Crook on About Trump’s ElectionI agree and pray the opportunity will not be wasted but successful.
Andrew Wahl on The “News”A common word in the headline? Where has Vivek Ramaswamy been hiding from the world for the past ten…
Erich Vieth on Huxley’s PredictionSame impulse toward totalitarianism, but now equipped with powerful new tools that couldn't have dre…
Andrew Wahl on Huxley’s PredictionIt is not a "new kind of Totalitarianism" ... it is the same one we have had around since before Ald…