From Mashable.com:
Anyone can throw an image of the periodic table onto a desktop and call it a background, but the creations in the gallery above combine useful information with strong aesthetic appeal.
1. Periodic Table of Typefaces
Study the popular, influential and notorious typefaces with this background. Image courtesy of Flickr, Jeff McNeill
2. Typeface Anatomy Wallpaper
Take a closer look at the components of a typeface with this simple wallpaper. Image courtesy of Kevin Wittevrongel
3. Brain
This wallpaper displays the dichotomy between our creative right and scientific left. Image by Jack
4. Solar
Science enthusiasts will enjoy this simple depiction of the solar system. Image by Jouhl Zamora
5. Konami Code
Cheat your way to victory with this simple trick. Image by Teles Maciel
6. Fibonacci
Spiral out of control with Fibonacci’s sequence. Image by amitabher
7. Periodic Light
Optimal for memorizing the families in the Periodic Table. Image by Chris Bogie
8. Moog
You’ll get familiar with the parts of a Moog sequencer when you make this your background. Image by Ania Haho
9. World Map
Memorize the countries around the world with this map of the world desktop background. Image via iStockPhoto, bamlou