Subject:
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Re: Libertarian SPAM (Propaganda)
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Newsgroups:
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lugnet.off-topic.debate
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Date:
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Tue, 19 Jun 2001 15:11:19 GMT
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Viewed:
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1561 times
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In lugnet.off-topic.debate, Jeff Jardine writes:
> Actually... Although water and the sky appear blue for the same reason, it is
> not directly related to water itself (in vapour or liquid form). Oxygen,
> nitrogen, and water molecules are all approximately the same size, which
> happens to be just big enough to scatter blue light. Longer wavelengths of
> light are not affected as much, and they mostly keep right on going.
Yep... the molecules in the atmosphere are the ones causing the sky's blue
appearance. That's also why the sun appears yellow on the background of the
sky (blue and yellow are complementary/opposite on the RGB scale, which is
what our eyes use). In outer space, in near-vacuum, nothing reflects the
light; the sky is black and the sun is white.
As for ocean and lake water - they are blue because of the sky's reflection.
Not the other way around (NOT the sky is blue because water reflects in it).
Water in itself, if you look at a cup inside your house, is entirely clear.
Capish?
-Shiri
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Message has 2 Replies:
 | | Nor any drop to drink
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| (...) That's not at all true--there's a toilet down the hall with blue water, and it's indoors. (...) <cap ish> adj. of or pertaining to a cape Dave! (23 years ago, 19-Jun-01, to lugnet.off-topic.debate)
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Message is in Reply To:
| | Re: Libertarian SPAM (Propaganda)
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| (...) Actually... Although water and the sky appear blue for the same reason, it is not directly related to water itself (in vapour or liquid form). Oxygen, nitrogen, and water molecules are all approximately the same size, which happens to be just (...) (23 years ago, 18-Jun-01, to lugnet.off-topic.debate)
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