Eder from May Elementary School in Rochelle asks "Why is the sky blue?" To answer this question Eder, we have to first understand the light that is coming from the sun. A famous scientist by the name of Isaac Newton was first to figure out that the sun is giving us all colors of the spectrum (rainbow). We see the light as "white" because all of the colors are combined. However, when this "white light" hits our atmosphere, the light is scattered. Because blue light is shortest in wavelength, more of it fills the sky and we perceive the sky as blue. Because red, orange, and yellow are longer in wavelength than blue, the sky changes color as the sun sets (and the sun rises).
That's an age old question that many kids ask their parents. Now, there's no excuse not to know! Thanks Eder! -ERIC
1 comment:
No joke, this same question was just posed on the white board on the outside of the photog office..er..closet up here.
-A
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