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ycats QOD 4
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06-19-2008, 02:30 PM
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Witty Kitty
Posts: 2,093
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Join Date: Dec 2006
Location: USA
Age: 21
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ycats QOD 4
This intelligent question comes from one of members, oggydm. Points for the idea are on their way!
 Now this time, there's no trick to the question. It's here to answer one of those eternal questions: Why is the grass green and the sky blue?  Always good to learn something new everyday! 
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06-19-2008, 11:12 PM
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The Amazing Oxymoron
Posts: 173
Join Date: Jun 2006
Location: Florida, United States
Age: 17
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The sky appears blue because of the particular way that light is refracted/bent through atmospheric gases. The wavelength that usually reaches our eyes is blue (~475 nm).
The grass is green because, like lufckid said, it contains chlorophyll, a pigment that absorbs all wavelengths of visible light except green (about 510 nm). The green light is reflected back, and that's what our eyes read.
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06-19-2008, 11:52 PM
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CUSA Moderator
Posts: 10,832
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Location: ...just over the edge in Texas USA
Age: 55
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the grass envies the sky for being so much higher up so its green
the sky is lonely up there only gettin to watch so its blue  hey, Ima grandma, work with me here
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