Take a break! Check this out, particularly if you have broadband:
http://micro.magnet.fsu.edu/primer/java/scienceopticsu/powersof10/index.html
The Molecular Expressions web site from the National High Magnetic Field Laboratory at Florida State University. Aside from the dramatic zooms into and out from our visible dimensions world, this site features sensational photomicrographs of all sorts of things!