Dear 100 Hour Board,
Okay, I finally decided to buckle down and solve the bottomless tunnel problem. The results are...interesting. I suggest that you read my work, which is fairly lucid, and can be found at http://students.cs.byu.edu/~bluej/splash.doc .
Summary: Eight thousand miles of air weighs a LOT. Partway down, the nitrogen enters its liquid phase, and our diver experiences quite a bellyflop.
- Blue and white blood