I’m fascinated with a Google Maps mashups (I prefer “mashup” to “hack”). Having recently read 109 East Palace (yet another very good history of the Manhattan Project), pondering nuclear (and other) holocaust in the brilliant Extremely Loud and Incredibly Close, and listening to Amy talk about “the great concavity” (the result of a nuclear explosion that is a central part of the geography on the eastern United States in Infinite Jest) – I’ve had explosions on my mind recently. I can’t say the Google Maps High-Yield Detonation Effects Simulator is particularly comforting, but it is enlightening.