alt.sci.physics.acoustics

In article <471bb755$0$500$815e3792@news.qwest.net>,
"Morris Dovey" wrote:

> Green Xenon [Radium] wrote:
> | On May 28, 10:27 pm, Benj wrote in
> | http://groups.google.com/group/sci.energy/msg/17e8728d2165c087 :
> |
> | > Radium wrote:
> |
> | > > Could a similar process be done in acoustics? IOW, something
> | like > > using four 1 KHz sine-wave tones to produce 4 KHz
> | sine-wave tone? If > > so, how would this be done?
>
> Could it be achieved mechanically? IOW, could a 1 KHz tone be fed into
> a pipe whose resonant frequency was 4 KHz and have a 4 KHz tone
> result?
>
> How does a pip organ work anyway?
>
> --
> Morris Dovey
> DeSoto Solar
> DeSoto, Iowa USA
> http://www.iedu.com/DeSoto/

Many musical instruments are based on pulsed power or noise inducing
complex resonation.

1KHz could be converted to 4KHz using any kind of distortion into 4KHz
resonance. That distortion could be something elastic deforming beyond
its linear range, a repeating impact, air/fluid turbulence, levers
coupled at changing points, rotating cams, or grooved surfaces. A
single pendulum has a downward force double the swinging frequency.
Interconnected pendulums can interact in ways to produce chaotic
frequencies that never existed in the original energy.