Zoom-zoom!

Oh, this is too cool! A zoomable flash showing the relative scales of cells, viruses and cellular components, from the scale of a coffee bean (upper left) and a sesame seed, down to a carbon atom. I love these sorts of things! Below is a screen capture from near the beginning of the animation; click over to the site, grab the slider, and pull it rightward- slowly- to enjoy this terrific show.
Consider this a more biologically focused sequel to the famous "Powers of Ten" short film done over 30 years ago. I think there may have been an earlier version; I'm pretty certain I saw this before I graduated from high school.