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Phil Plait

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If a little kid ever asks you just why the sky is blue, you look him or her right in the eye and say, "It's because of quantum effects involving Rayleigh scattering combined with a lack of violet photon receptors in our retinae."
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p. 47

 
Phil Plait

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One of the neighbors found Nasreddin scattering crumbs all around his house.
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"But there aren't any tigers around here," said the neighbor.
"That's right," said Nasreddin. "You see how well it works?"

 
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