Re: [PSUBS-MAILIST] Sonar/Telephones was Propulsion

[TeslaTony@aol.com]

I have heard that scanning with a single frequency will act like a single 
color of light, causing distortions due to diffraction and problems if that 
frequency doesn't work in the environment.
 The solution that I heard was to generate white noise (your "light") and 
create an array of microphones (your "camera") with several balloons in fron 
("lenses") with a bit of hardware to interpet the signal into an image and 
send it to a monitor so you can view it, a rudimentary sonic camera, that 
would be EXCELLENT for looking for obstacles in very murky water where a 
light won't work (or where the output would have to suck up all your power in 
2 seconds flat, leaving you dead in the water).
The biggest problem is the microphone array, unless the a sonar receiver 
could be used (forgive my ignorance on the subject, but for all I know they 
could have a magic pinecone as the receiver in sonar) or if someone in the 
silicon chip making industry could build a chip with thousands of microphones 
instead of light senors on it and make the lenses from Nitrogen-filled 
chambers instead of contorted balloons filled with a mix of Oxygen, Carbon 
Dioxide, Water, Nitrogen and Halitosis.

Now this just might work.........

Anthony