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Infrasound

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busk31
712860.  Wed May 26, 2010 9:18 am Reply with quote

This is a huge topic and I will only mention some of the more interesting areas.

Infrasound is the extreme bass sounds that is lower in frequency than 20 Hz or cycles per second, the normal limit of human hearing.
The study of such sound waves is sometimes referred to as infrasonics, covering sounds beneath 20 Hz down to 0.001 Hz.
This frequency range is utilized for monitoring earthquakes, charting rock and petroleum formations below the earth,
and also in ballistocardiography and seismocardiography to study the mechanics of the heart.
Infrasound is characterized by an ability to cover long distances and get around obstacles with little dissipation.
Natural sources of infrasound include waves crashing on a shore, waterfalls, wind turbulence in mountains,
meteors blasting into the atmosphere, volcanic activity and earthquakes.
We humans make infrasound with really large organ music pipes, rocket launches and sonic booms— and with very large loudspeakers, sirens, whistles and piezoelectric

The ear is the primary organ for sensing infrasound, but at higher levels it is possible to feel infrasound vibrations in various parts of the body.
Infrasound has been known to cause feelings of awe or fear and sadness in humans.
Since it is not consciously perceived, it can make people feel vaguely that supernatural events are taking place.
Some film soundtracks make use of infrasound to produce unease or disorientation in the audience. Irréversible is one such movie.
Church organs with huge infrasonic bass pipes has been known to shatter windows and instill awe in the listeners.


Infrasound produces varied physiological sensations which begin as vague “irritations”.
At certain pitch, infrasound produces physical pressure.
At specific low intensity, fear and disorientation.

Nazi propaganda engineers methodically used infrasound to stir up the hostilities of crowds who were gathered to hear their madman.The results are historical nightmares.

At a very specific pitch, infrasound explodes matter.At others, infrasound incapacitates and kills, organisms rupture in its blast.
Not much amplitude is required for infrasound to produce physiological malady.
Several researchers accidentally did themselves great harm when, by deliberate intent or accident, they succeeded in generating infrasonic vibrations.

Tesla used vibrating platforms as an aid to vitality. He delighted in “toning the body” with vibrational platforms of his own design.
Mounted on heavy rubber pads, these platforms were vibrated by simple motorized “eccentric” wheels.
Their mild use, for a minute, could be pleasantly stimulating. The effects invigorating the whole body for hours thereafter.Excessive use would produce grave illness however, excessive aggravations of the heart being the most dangerous aspect of the stimulation.
The entire body “rang” for hours with an elevated heart rate and greatly stimulated blood pressure. The effects could be deadly.
In one historic instance, Samuel Clemens, Tesla’s close friend, refused to descend from the vibrating platform. Tesla was sorry he had allowed him to mount it.
After repeated warnings, Tesla’s concern was drowned out by both the vibrating machine and Clemens’ jubilant exaltations and praises.
Several more seconds and Clemens nearly soiled his white suit, the effects of infrasound being “duly recorded”.
Tesla often went to great lengths in describing the effects of infrasounds to newspaper reporters who, behind his back,
scoffed at the notion that a “little sound” could effect such devastations. Yet, it was precisely with such a “little sound” that Tesla nearly brought down his laboratory on Houston Street.His compact infrasonic impulsers were terribly efficient. Tesla later designed and tested infrasonic impulse weapons capable of wrecking buildings and whole cities on command.


Walt Disney and his artists were once made seriously ill when a sound effect, intended for a short cartoon scene, was slowed down several times on a tape machine and amplified through a theater sound system.
The original sound source was a soldering iron, whose buzzing 60 cycle tone was lowered five times to 12 cycles.
This tone produced a lingering nausea in the crew which lasted for days.


Physiology seems to remain paralyzed by infrasound. Infrasound stimulates middle ear disruptions, ruining organismic equilibrium.
The effect is like severe and prolonged seasickness. Infrasound immobilizes its victims.
Restoration to normal vitality requires several hours, or even days.
Exposure to mild infrasound intensities produces illness, but increased intensities result in death.
Alarming responses to infrasound have been accurately recorded by military medical experts.
The findings of Dr. Gavreau in the infrasonic range between 1 and 10 cycles per second are truly shocking.
Lethal infrasonic pitch lies in the 7 cycle range. Small amplitude increases affect human behavior in this pitch range.
Intellectual activity is first inhibited, blocked, and then destroyed. As the amplitude is increased, several disconcerting responses had been noted.
These responses begin as complete neurological interference.
The action of the medulla is physiologically blocked, its autonomic functions cease.

Animals:
Whales, elephants, hippopotamuses, rhinoceros, giraffes, okapi, alligators, dolphins and tigers are known to use infrasound to communicate over distances.
Elephants, in particular, produce infrasound waves that travel through solid ground and are sensed by other herds using their feet,
although they may be separated by hundreds of kilometres.—up to hundreds of miles in the case of whales. Sea creatures use this power to stun and kill prey. Those who are lucky and have survived a tiger attack, tell stories of the tigers stunning roar that carries infrasound with great effect.
It has also been suggested that migrating birds use naturally generated infrasound, from sources such as turbulent airflow over mountain ranges,
as a navigational aid.

'Other areas: Infrasound is possibly the explanation for ghost-sightings and why some places seems haunted,At 19 Hz The eyes vibrate and ghostly images are noted in some cases.

#Wiki,Borderland research,msnbc,smh.com

 
bemahan
712880.  Wed May 26, 2010 12:04 pm Reply with quote

Many years ago I worked in an NHS special care unit for people with severe physical and learning disabilities. One of the therapies used was vibration therapy. This involved 2 different types. One was a vibrating platform on which the person sat either in a wheelchair or armchair. The other was a handheld vibrator* which was used on specific muscle groups in order to relax contracted muscles.

*no - not one of 'those'!

 
busk31
712886.  Wed May 26, 2010 12:48 pm Reply with quote

Thats interesting. Was there any effect/results or reaction from the patients?

 
bemahan
712897.  Wed May 26, 2010 1:57 pm Reply with quote

Good question. I worked mainly with those with learning disabilities only and had relatively little to do with those with additional physical disabilities. From the involvement I did have, I could see definite short-term benefits. Applying vibration to specific muscles certainly helped to relax very chronically and tightly contracted fingers for a short time. This enabled the nails to be cut and palm of the hand to be cleaned to avoid infection. In some cases, a splint (actually a roll of suitable thermoplastic material) was inserted so that the fingers curled around that rather than curling up again tightly into the palm again.
One of the uses of the vibration platform was to relax muscles generally so that specialist supportive seating moulds could be made.
The senior staff were doing it as a research project, I think, but I left and don't know what became of it.

 
busk31
712921.  Wed May 26, 2010 3:52 pm Reply with quote

Well, it sounds like it did some good (Fingers crossed, that there was no long-term side effects) I am sure Infrasound can be usefull in therapy, just not sure how. :)

Tigers in action O.o :
http://www.youtube.com/watch?v=Ms4KFAjDPB8

 
Spud McLaren
712925.  Wed May 26, 2010 4:32 pm Reply with quote

I think this partially ties in with post 677617 et seq, particularly
busk31 wrote:
The findings of Dr. Gavreau in the infrasonic range between 1 and 10 cycles per second are truly shocking.
Lethal infrasonic pitch lies in the 7 cycle range. Small amplitude increases affect human behavior in this pitch range.
Intellectual activity is first inhibited, blocked, and then destroyed. As the amplitude is increased, several disconcerting responses had been noted.
These responses begin as complete neurological interference.
The action of the medulla is physiologically blocked, its autonomic functions cease.
I seem to remember that this experiment was quoted in Dr Lyall Watson's Supernature (a now largely discredited book). However, I wonder if there's the key - a wave, however induced, inhibiting intellectual activity would set up ideal conditions for certain types of passive meditation (see linked thread). It would also explain (in part) the part played by the oddly discordant low-pitched chanting heard in (mainly Buddhist) monasteries - some of the undertones produced in the discordant primary pitch reactions may be of the relevant pitch to produce the aforesaid effects.

busk31 wrote:
Intellectual activity is first inhibited, blocked, and then destroyed.
Does this mean for the duration of the exposure to the wave, for some time afterwards, or permanently?

 
busk31
712933.  Wed May 26, 2010 4:47 pm Reply with quote

Sounds like binaural sound to me, eg:If you get 16000Hz in one ear and 16002Hz in the other, the effect is really only the difference i.e 16002-16000 = 2Hz The amplitude is key though, and its another interesting subject.
I try to avoid writing about sonic weapons, as there are lots of myths and most data is still "Secret". Teslas papers are locked away in America. Dr.Gavreau´s papers are locked away in France, The Nazi´s experiments are hard to get hold of etc...Lots of myths out there, that I was hoping we could De-Bunk some..
Destruction is permanent as I understand it, yes

 
busk31
712938.  Wed May 26, 2010 4:54 pm Reply with quote

With binaural sound the brain creates the infrasound and it is a very low amplitude and possibly very ..nice and relaxing etc. Infrasound is direct , inaudiable and unstoppable.

 
Spud McLaren
712947.  Wed May 26, 2010 5:15 pm Reply with quote

I'm not sure that the effect is the difference. Using simpler numbers, what if you have 5 Hz in L and 25Hz in R? The net result isn't 20Hz, it's a pulse of 5Hz at peaks.

Surely the net result must be a (function of a) common denominator of the frequencies of both the L and the R channels?

It's such a long time since i knew about these things...

 
busk31
712953.  Wed May 26, 2010 5:23 pm Reply with quote

No..You have to have sound in the audiable range, and the brain is confused by this and makes a standing wave of the difference, in order for this to work the difference must be in the 5-6-7 Hz range(Where the brainwaves operate) Say 12000 in the left ear and 12007 in the right will create a wave of 7 Hz.
If you are worried about damage from this, dont be.

 
Spud McLaren
712955.  Wed May 26, 2010 5:27 pm Reply with quote

busk31 wrote:
No..You have to have sound in the audiable range, and the brain is confused by this and makes a standing wave of the difference, in order for this to work the difference must be in the 5-6-7 Hz range(Where the brainwaves operate) Say 12000 in the left ear and 12007 in the right will create a wave of 7 Hz.
If you are worried about damage from this, dont be.
No, not worried - fascinated.

 
busk31
712960.  Wed May 26, 2010 5:30 pm Reply with quote

Its Q.I to me too :) And potentially awesome.

 
Spud McLaren
712961.  Wed May 26, 2010 5:32 pm Reply with quote

So, what you're saying is that the perceived resultant frequency in binaural sound does not work in the same way as the beat frequency heard when two sounds of differing Hz are played together?

Although this would seem to conflict with that statement...

I'm tired & getting confused. It's bedtime. Interesting topic, though!


Last edited by Spud McLaren on Wed May 26, 2010 5:40 pm; edited 1 time in total

 
busk31
712967.  Wed May 26, 2010 5:40 pm Reply with quote

If they are in that range 5-6-7 Hz and as direct as poss-Hence the earphones.. There was some experiments done by the army/police on crowd control, as young people can hear lower frequencies (Down to 17Hz) Where they would send sound with a difference of 2 Hz into groups of young hoodies to create headaches, neusea etc. But I think it would have to be more direct to actually do any good. Infrasound on the other hand, would have rendered the young extremelly ill/Damaged..

 
busk31
712973.  Wed May 26, 2010 5:58 pm Reply with quote

My numbers may be wrong, this is from Wiki:
Binaural beats or binaural tones are auditory processing artifacts, or apparent sounds, the perception of which arises in the brain for specific physical stimuli. This effect was discovered in 1839 by Heinrich Wilhelm Dove.

The brain produces a phenomenon resulting in low-frequency pulsations in the loudness and sound localization of a perceived sound when two tones at slightly different frequencies are presented separately, one to each of a subject's ears, using stereo headphones. A beating tone will be perceived, as if the two tones mixed naturally, out of the brain. The frequency of the tones must be below about 1,000 to 1,500 hertz for the beating to be heard. The difference between the two frequencies must be small (below about 30 Hz) for the effect to occur; otherwise, the two tones will be heard separately and no beat will be perceived

 

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