Interesting time lapse "movie"

I ran across this video the other day and decided it was worth passing along. The photographer, realizing that the cities and towns they were passing made the clouds glow, aimed his camera out the window from a makeshift tripod while flying over the US on a night flight. It's interesting to see how many towns and cities pass by during the three hours from the Midwest to San Francisco. I thought it made for a very cool video. For the full effect, watch it in full-screen mode