Since we've had a few items on stellar observations lately, I thought you might be interested in this site that a friend of mine out in California shared with me. <A HREF="http://micro.magnet.fsu.edu/primer/java/scienceopticsu/powersof10/index.html">Molecular Expressions: Science, Optics and You - Powers Of 10: Interactive Java</A> If the link doesn't work, copy and paste this address into your browser and go: <A HREF="http://micro.magnet.fsu.edu/primer/java/scienceopticsu/powersof10/index.html">http://micro.magnet.fsu.edu/primer/java/scienceopticsu/powersof10/index.html</A> Doris in Colorado (Up2Nutrix@aol.com) "He is no fool who gives what he cannot keep to gain what he cannot lose." -- Jim Elliot, missionary and martyr