Wouldn't the actual doppler effect cancel out your reverse doppler? Then it would just sound like a car revving a motor, standing still. Man that's confusing.

Raleigh's NC Museum of Natural Sciences has the most complete (by far) Acrocanthosaurus skeleton on display. The quality of exhibits, in my opinion, rivals that of many I've seen. It's worth a visit to their website: http://naturalsciences.org/exhibits

It is LaTex, but made easy. Made very easy. It's managed by a co-worker and friend of mine, so I may be biased. But he's done some exceptional work with it (including many internal manuals here at Red Hat). So check it out. He is a big KDE fan, so it's made the transition to QT 4 recently and it looks fabulous. http://www.99b.org/wyneken/