You don't have to join the Air Force to fly over Iraq. As anybody who has watched CNN's Baghdad bomb-damage reports knows, it's now easy to pull up satellite images of a major military target and dive into a 3-D landscape rich in hills and valleys, all built from real-world data. Zoom in close enough, and you can see cars on the streets, the shadows of trees and the swimming pools of Saddam's palaces.
Want to try it at home? All you need is an up-to-date PC--the kind with a built-in 3-D graphics card--and a piece of software called Earthviewer from...
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