Living in Columbia, SC means living near Ft. Jackson. Every fall, they host an event (sponsored by the marine corps) called the mud run.
This last fall roughly 14,000 people ran, swam, crawled and basically oozed their way through an obstacle course. (I even considered doing it but then I realized that I am sane).
Somehow I thought about this when listening to a student's overly noisy breath.
Noise = friction.
It's almost as if the air has to run an obstacle course to go in and come out. What we really need (low tongue, relaxed throat) is a new superhighway...