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Feynman recounted another good one upperclassmen would use on freshmen physics students: When you look at words in a mirror, how come they're reversed left to right but not top to bottom? What's special about the horizontal axis?

"Sky Color", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License

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Feynman recounted another good one upperclassmen would use on freshmen physics students: When you look at words in a mirror, how come they're reversed left to right but not top to bottom? What's special about the horizontal axis?


Page last modified: 12/10/2012.