Tristam was talking about sonic emitters as weaponry in Auditions this afternoon. Made me wonder about gestural interfaces such as the theremin, which registers how close one is to two ariels, pitch and volume, and emits sound correspondingly. Also began thinking about the brown note.
The brown note "is a theoretical infrasonic frequency that would cause humans to lose control of their bowels due to resonance." [http://en.wikipedia.org/wiki/Brown_note]. Mythbusters attempted to bust the myth, see below. Watch as Barthe's "stupid organ", the lungs (The Grain of the Voice), get a workout.