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Re: [Phys-L] Where is the sky?



Wrong URL! Try this==>
http://www.google.com/imgres?imgurl=http://d1jqu7g1y74ds1.cloudfront.net/wp-content/uploads/2009/09/earth.jpg&imgrefurl=http://www.universetoday.com/41702/picture-of-earth-from-space/&h=1425&w=1500&sz=790&tbnid=RdlN8Cf63kLwkM:&tbnh=90&tbnw=95&zoom=1&usg=__a07g2lhQdHJ-8odfBToE-fn81N8=&docid=88ga4zsak-9A3M&sa=X&ei=EgsSUsGAGOfuyAGf_4GQAw&ved=0CDQQ9QEwAg&dur=1104



Bob Sciamanda
Physics, Edinboro Univ of PA (Em)
treborsci@verizon.net
http://mysite.verizon.net/res12merh/

-----Original Message----- From: Chuck Britton
Sent: Monday, August 19, 2013 6:53 AM
To: Phys-L@Phys-L.org ; Bob Sciamanda
Subject: Re: [Phys-L] Where is the sky?

I'll guess that for the air in our atmosphere to 'appear' blue requires a great deal of depth/thickness to the later being observed.

For the astronauts in low orbit - does the blueness appear to be at ground level? (Ignore the horizon for the nonce.)

They may not even notice the blueness except at the horizon - due to the richness of other color on the ground?

On Aug 18, 2013, at 10:50 PM, Bob Sciamanda <treborsci@verizon.net> wrote:

How is it that the blue sky of scattered sunlight appears to come from a highly localized source confined to a distant hemispherical surface? Does not the entire atmosphere participate in this scattering?

Bob Sciamanda
Physics, Edinboro Univ of PA (Em)
treborsci@verizon.net
http://mysite.verizon.net/res12merh/

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