I've previously blogged on Powers of Ten, a classic book that illustrates relative sizes of various things, both extremely large and extremely small. I just ran across a terrific website that illustrates that relative sizes of many kinds of small things, the largest of which is a coffee bean. When you go to this site, wait a bit so that it finishes loading. Then move the horizontal slider slowly to the right and enjoy your journey into the universe of small and smaller things, all the way down to a carbon atom. [applause!]