Wallpaper in the popular 1024x768 landscape format to fit most monitors.
Instructions for Windows: When you click on a portrait, a new window
Instructions for Macs: When you click on a portrait, a new window will open with the big version of the picture. Click on the big image, hold at the resolution size, and choose Save Image. Or drag the photo to the desktop.
Photographs and text by
William H. Calvin, a professor at the University of