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Why is the sky blue?
Let’s start by asking ourselves: what color SHOULD the sky be? Or, one step further back, what color should anything be? And the answer is: the color of anything is due to[1] the wavelength of photons coming from that thing and hitting your eye. Well ackshually… 🧐 These sidenotes are optional to read, but I’ll use them for giving the fuller technical details when I’ve abbreviated things in the main body of the text.
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