For an excellent, FREE, science book to add to your digital library click on the link below http://groups.yahoo.com/group/the_Aufbau_Laws_unify_everything/files/HTML THEORY of EVERYTHING.htm or, if it's busy, click on this link below. http://www.msnusers.com/TheoryofEverything/files/Theory of Everything.htm Robert Duncan Zeusrdx@Yahoo.com