Sky Color

[[A woman with a ponytail leans back on her office chair, back to her computer, gesturing as she speaks to a little girl in front of her.]] Girl: Mommy, why is the sky blue? Mother: Rayleigh scattering! Short wavelengths get scattered way more (proportional to 1 lambda^4). Blue light dominates because it's so short. Girl: Oh. So why isn't the sky violet? Mother: Well, because, uh... ...hmm. {{Title text: 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?}}

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