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- Xref: sparky alt.folklore.urban:32168 sci.skeptic:21717
- Path: sparky!uunet!news.claremont.edu!nntp-server.caltech.edu!SOL1.GPS.CALTECH.EDU!CARL
- From: carl@SOL1.GPS.CALTECH.EDU (Carl J Lydick)
- Newsgroups: alt.folklore.urban,sci.skeptic
- Subject: Re: Wwy is the sky blue? (was Re: Daytime Stars - Not Donahue or Oprah)
- Date: 27 Dec 1992 11:29:32 GMT
- Organization: HST Wide Field/Planetary Camera
- Lines: 18
- Distribution: world
- Message-ID: <1hk42sINN34t@gap.caltech.edu>
- References: <2934047046.4.p00168@psilink.com>
- Reply-To: carl@SOL1.GPS.CALTECH.EDU
- NNTP-Posting-Host: sol1.gps.caltech.edu
-
- In article <2934047046.4.p00168@psilink.com>, p00168@psilink.com (James F. Tims) writes:
- >I can't figure out whether the atmosphere is a lens or a radiator;
-
- It's both. At sunrise or sunset, the sun will appear to be somewhat squashed.
- This is a result of the atmosphere acting as a lens. On the other hand, try
- the following experiment: Wait until about an hour before sunset. Look at the
- eastern sky. Blue isn't it? Well, there's no way in hell that the atmosphere
- is enough of a lens to somehow refract the sun's rays through more than 150
- degrees. When you see a blue sky to the east near sunset, you're talking about
- radiation (glowing, to use your term).
- --------------------------------------------------------------------------------
- Carl J Lydick | INTERnet: CARL@SOL1.GPS.CALTECH.EDU | NSI/HEPnet: SOL1::CARL
-
- Disclaimer: Hey, I understand VAXen and VMS. That's what I get paid for. My
- understanding of astronomy is purely at the amateur level (or below). So
- unless what I'm saying is directly related to VAX/VMS, don't hold me or my
- organization responsible for it. If it IS related to VAX/VMS, you can try to
- hold me responsible for it, but my organization had nothing to do with it.
-