tag:blogger.com,1999:blog-521206821550406362.post2560877735754207646..comments2022-12-23T10:39:03.233-08:00Comments on Bright Stars Wildomar: Ignoring Frictionjghttp://www.blogger.com/profile/00588440067862480858noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-521206821550406362.post-17161544037895727812009-12-08T07:07:38.705-08:002009-12-08T07:07:38.705-08:00The first thing you have got to do is ignore "...The first thing you have got to do is ignore "friction"! Here is the specrum of the Sun:<br />http://www.eoearth.org/image/Sun_spectrum_graph.gif<br />and here is the spectrum of the earth:<br />http://www.eoearth.org/image/Earth_spectrum_graph.gif<br /><br />Note that they hardly overlap. So radiation can be treated as incoming from the sun and outgoing from the earth.<br /><br />Now adding in "friction" the high frequency radiation from the sun (UV) is absorbed in the stratosphere by O2 and O3. Terrestrial radiation is absorbed absorbed by CO2 in the middle of the terrestrial spectrum and warms the atmosphere. See <a href="http://2.bp.blogspot.com/_0HiXKAFhRJ4/Sxh4aE3jExI/AAAAAAAABE4/SoItbBQWfXA/s400/A2.JPG" rel="nofollow">Hat tip</a> to the <a href="http://rabett.blogspot.com/" rel="nofollow">Buck Rabbit</a> and http://news.bbc.co.uk/1/hi/sci/tech/8394168.stm<br /><br />HTH,<br /><br />Cheers, Alastair.Alastairhttps://www.blogger.com/profile/15152292130415788120noreply@blogger.com