Getting esoteric on infrasound Re: [sdiy]

[Cynthia Webster]

Getting esoteric on infrasound

So at what point is it no longer sound?
Is that when the movement of air is exchanged for the movement of earth?

What drastic changes occur at this threshold?

In addition to credit for inventing many things including radio, and
the florescent light, Nikola Tesla invented the AC motor, and did many
experiments throughout the spectrum including those of mechanical
vibrations.

Credit for the garden variety electric vibrator goes to Mr. Tesla as well,
who experimented with willing test subjects who's experiences ranged from
muscular pleasure to instant, uncontrollable incontinence and associated
bodily functions...

Throbbing gristle indeed!

A parallel of this can be found in transonic ballistics, the point in a
bullet's trajectory where it falls below the speed of sound.
At this moment the trajectory actually makes drastic changes.
The study of this is part of another black art -
subsonic sniping by stealthy assassins...

We can keep going slower and slower until we reach the resonant frequency
of a suspended spinning body - such as the Earth itself...
 
At what point does it become evil? and when not?
and what is the transvibrational threshold - where vibration of the Earth
changes to that of... (what)?
The periodic table of the elements? or the duration of time we call a
century? 

 "Limbo Boy - how Low can you go"?

pray tell, why do you want to expend so much energy
so far down?

What drastic changes do you seek?




on 4/21/02 5:52 PM, Grant Richter at grichter at asapnet.net wrote:

> Infra sound of sufficient power and at the resonant frequency of the thorax
> is reputed to be able to cause cavitation based hemorrhages. In other words,
> the pressure extremes in your body at resonance may cause blood clots, which
> may cause stroke or heart attack.
> 
> Urban legend has it that experimenting in such black arts is always fatal to
> the experimenter...
> 
> "Those who worship dark Gods should meet them." - Conan the Barbarian
> 
>> 
>> One problem with generating low freqs is the speakers.
>> A 30Hz wave is 30 feet across. This tough to do with
>> any kind of efficiency with a 15 inch driver. One way
>> around this is to use an acoustic transformer, or as
>> they are commonly known, horns. My Klpisch corner
>> horns can reproduce down below 20Hz if in a big enough
>> room.
>> 
>