Share 'The End of Cosmology.'

There was an article in Scientific American a while ago (March 2008 ) under the same name. This discussion is based on blogs on if "  light is a matter? " posted by swheel26 (Stacey) and developed by John J.Caprice (I can't forget a fish on his photo !). http://www.classroom20.com/forum/topics/is-light-matter?xg_source=activity&id=649749%3ATopic%3A425713&page=1#comments