Nicholas Gravagne wrote: > Ron, you are known for having many fine ideas and interesting > perspectives, but this one of a "third tuned duplex" via hollow WNG > shanks strikes me as particularly brilliant! A crack marketing > department could go wild with something like this. Naw, man. We don't got no cracks in our marketing department. > For example, not only would this be a third duplex, but a variable one > as well. The faster and harder the notes are played, the higher would be > the whistling pitches! "Be the first on your block to own an > Acousto-Action!" Hmmm. Concept alert! Blowing across the top of the Coke bottle (and you're old enough to relate) only produces one pitch, whatever the air velocity. Pan pipes. > But first, we would have to run the acoustic physics on "closed end -- > open end" tube phenomenon. We should get on this right now --- could > easily have it ready for Vegas. <G> I remember long ago, plugging a ribbed hose into a vacuum cleaner and turning it on. As the motor ginned up, the hose began to speak, the pitch climbing through a near lethal decibel level partial sequence that had me flailing at the switch almost immediately. More recently a ribbed hose was marketed as a "Floogle". You held one end, and whirled it. The faster you whirled, the higher the pitch climbed. There's your difference. Keen toy though, if you're as easily amused as I am. <G> Ron N
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