Periodic Spiral
The periodic table is under-appreciated as a design masterpiece, and as an iconic representation of science. The table works as a taxonomy, showing someone who knows how to read it a great deal of information about the elements based on their arrangement in space.
So it’s pretty audacious to come out with a re-design:
The Periodic Spiral envisions a remedy to the flaws in conventional periodic tables by illustrating hydrogen’s ambiguous relationship to the noble gases and halogens while recognizing its relationship to the alkali metals; it also fully integrates the lanthanons and actinons into the design.
Via Information Esthetics [link to http://infosthetics.com/archives/2006/10/periodic_spiral.html no longer works].