Death by sound?
Nicholas Phillips
causing injury and even death, well I stumbled across this today:
French engineer Professor Gavraud made a giant whistle to produce low-end
frequencies at 7Hz. In the first trial, a lab technician died when his
internal organs were pulped.
Also, the US Army discovered in the 1960s that 158dB of bass was sufficient
to kill a dog. Around 10dB more would kill a human.
Please don't try any of these! lol
David Shorter
References please!
--
Regards,
David Shorter
Oceania Audio
Auckland, New Zealand
Any errors in tact, fact or spelling
are entirely due to transmission error.
Denny Strauser
>
> Nicholas Phillips wrote:
>
> > I think that a while ago, there was a post about specific frequencies
> > causing injury and even death, well I stumbled across this today:
> >
> > French engineer Professor Gavraud made a giant whistle to produce low-end
> > frequencies at 7Hz. In the first trial, a lab technician died when his
> > internal organs were pulped.
> >
> > Also, the US Army discovered in the 1960s that 158dB of bass was sufficient
> > to kill a dog. Around 10dB more would kill a human.
> >
> > Please don't try any of these! lol
>
> References please!
I'm sure that Rodney Phillips could give some references & real life
experiences on this subject.
He does acoustic research for NASA.
He's a not so regular contributor, here.
--
Denny Strauser
The email address in the header is a spam-deterring fake.
To email me, use the email address below:
no...@stargate.net
Hermann Stemberger
news:3AF2DE46...@ihug.co.nz...
> Nicholas Phillips wrote:
>
> > I think that a while ago, there was a post about specific frequencies
> > causing injury and even death, well I stumbled across this today:
> >
> > French engineer Professor Gavraud made a giant whistle to produce
low-end
> > frequencies at 7Hz. In the first trial, a lab technician died when his
> > internal organs were pulped.
> >
> > Also, the US Army discovered in the 1960s that 158dB of bass was
sufficient
> > to kill a dog. Around 10dB more would kill a human.
> >
> > Please don't try any of these! lol
>
> References please!
I found an old article about that on groups.google.com by "Top Catt" - not
quite specific but i'll repost it though:
<<
The late William Burroughs claimed (in a collection of essays published
in the 60's), that infrasound could be lethal. The term "infrasound"
refers to frequencies below 16 Hz or so. At sufficient amplitude, these
frequencies have a negative effect on the functioning of the nervous
system, causing death. Burroughs went on to propose--as a weapon--an
infrasound machine, which he described as an enormous police whistle
mounted on a truck and powered by an airplane engine. When turned on (by
remote control, of course), the infrasound machine would kill every
living thing for miles around.
So the frequency of death must be around 12 Hz (or thereabouts).
T.C.
>>
Hermann Stemberger
>
> > I think that a while ago, there was a post about specific frequencies
> > causing injury and even death, well I stumbled across this today:
> >
> > French engineer Professor Gavraud made a giant whistle to produce
low-end
> > frequencies at 7Hz. In the first trial, a lab technician died when his
> > internal organs were pulped.
> >
> > Also, the US Army discovered in the 1960s that 158dB of bass was
sufficient
> > to kill a dog. Around 10dB more would kill a human.
> >
> > Please don't try any of these! lol
>
> References please!
Another old article by "JnyVee":
<<
Acoustic Beam. High power, very low frequency beam emitted from weaponry
under development. Envisioned to be a piston-driven or detonation-driven
pulser which forces compressed air
into tubes to generate a low frequency wave [543,546].
Acoustic, Blast Wave, Projector. Energy generation from a pulsed laser
that will project a hot, high pressure plasma in the air in front of a
target. It creates a blast wave with variable but
controlled effects on hardware and troops [543].
Acoustic Bullets. High power, very low frequency waves emitted from one
to two meter antenna dishes. Results in blunt object trauma from waves
generated in front of the target. Effects
range from discomfort to death. A Russian device that can propel a
10-hertz sonic bullet the size of a baseball hundreds of yards is
thought to exist. Proposed fixed site defense
[16,113,212,543]. Also known as sonic bullets.
Acoustic, Curdler Unit. A device which is plugged into an HPS-1 sound
system to produce a shrill shrieking, blatting noise. It is used to
irritate and disperse rioters and had a decibel
range just below that of the danger level to the human ear. It is used
in night operations to produce a "voodoo" effect and effectively breaks
up chanting, singing and clapping
[2:279-280,82:184,84,529].
>>
Dave Andrews
article by "JnyVee":
<< Acoustic, Curdler Unit. A device which is plugged into an HPS-1 sound system
to produce a shrill shrieking, blatting noise. It is used to irritate and
disperse rioters and had a decibel range just below that of the danger level to
the human ear. It is used
in night operations to produce a "voodoo" effect and effectively breaks up
chanting, singing and clapping
[2:279-280,82:184,84,529]. >>
Yes, I remember this well. It was the precursor to rap music, only much less
lethal.
;-)
With all due respect,
Dave Andrews
D. W. Andrews Associates
Church Music System Specialists
"Two Hacks Working Out Of A Garage"
Disclaimer: If there are two ways to take my words,
always assume I was after the cheap laugh.
David Shorter
> "David Shorter" <dazz...@ihug.co.nz> schrieb im Newsbeitrag
>
> > References please!
>
> I found an old article about that on groups.google.com by "Top Catt" - not
> quite specific but i'll repost it though:
>
> The late William Burroughs claimed (in a collection of essays published
> in the 60's), that infrasound could be lethal. The term "infrasound"
> refers to frequencies below 16 Hz or so. At sufficient amplitude, these
> frequencies have a negative effect on the functioning of the nervous
> system, causing death. Burroughs went on to propose--as a weapon--an
> infrasound machine, which he described as an enormous police whistle
> mounted on a truck and powered by an airplane engine. When turned on (by
> remote control, of course), the infrasound machine would kill every
> living thing for miles around.
>
> So the frequency of death must be around 12 Hz (or thereabouts).
Again, references please.
Are you seriously using something attributed to William Burroughs.
A cool guy, but it was the 60's so who knows where or how he gleaned
his information, possibly from within.
David Shorter
> "David Shorter" <dazz...@ihug.co.nz> schrieb im Newsbeitrag
>
> > References please!
>
> Another old article by "JnyVee":
>
> Acoustic Beam. High power, very low frequency beam emitted from weaponry
> under development. Envisioned to be a piston-driven or detonation-driven
> pulser which forces compressed air
> into tubes to generate a low frequency wave [543,546].
>
> Acoustic, Blast Wave, Projector. Energy generation from a pulsed laser
> that will project a hot, high pressure plasma in the air in front of a
> target. It creates a blast wave with variable but
> controlled effects on hardware and troops [543].
>
> Acoustic Bullets. High power, very low frequency waves emitted from one
> to two meter antenna dishes. Results in blunt object trauma from waves
> generated in front of the target. Effects
> range from discomfort to death. A Russian device that can propel a
> 10-hertz sonic bullet the size of a baseball hundreds of yards is
> thought to exist. Proposed fixed site defense
> [16,113,212,543]. Also known as sonic bullets.
>
> Acoustic, Curdler Unit. A device which is plugged into an HPS-1 sound
> system to produce a shrill shrieking, blatting noise. It is used to
> irritate and disperse rioters and had a decibel
> range just below that of the danger level to the human ear. It is used
> in night operations to produce a "voodoo" effect and effectively breaks
> up chanting, singing and clapping
> [2:279-280,82:184,84,529].
It would be nice to know what the above numbers refer to.
Try this http://www.usnews.com/usnews/issue/970707/7weir.htm
I had it bookmarked under Conspiracy/Looneytoons.
Nuuska
David Shorter <dazz...@ihug.co.nz> kirjoitti
viestissä:3AF2DE46...@ihug.co.nz...
> Nicholas Phillips wrote:
>
> > I think that a while ago, there was a post about specific frequencies
> > causing injury and even death, well I stumbled across this today:
> >
> > French engineer Professor Gavraud made a giant whistle to produce
low-end
> > frequencies at 7Hz. In the first trial, a lab technician died when his
> > internal organs were pulped.
> >
> > Also, the US Army discovered in the 1960s that 158dB of bass was
sufficient
> > to kill a dog. Around 10dB more would kill a human.
> >
> > Please don't try any of these! lol
>
> References please!
>
> David Shorter
>
> Oceania Audio
> Auckland, New Zealand
>
> Any errors in tact, fact or spelling
> are entirely due to transmission error.
Howdy
I have a book, which I try to find to send exact references later.
Meanwhile I just tell that this book is about subfrequency noise -
infranoise - and in it is a dB-scale of what happens at what level. At
certain level dogs stop breathing - they just resonate and air goes in and
out so they do not die - them poochies must have helluva party not even
having to breathe. At higher lavels some of the people die and at still
higher levels everybody dies. Now all of this was wery interesting of
course, and I started wondering who and how came to these results. In the
end of the book is a list of references, where one can see, that some of the
test are made by U.S. army. Obviously it might have gone something like
this: "Private Smith. We are going to test a new bomb. Your job is to stay
at this spot and observe." "Ay ay sir" There could´ve been several Smiths
and Joneses at different distances. Propably the russians had their own
versions, too.
Now is it not amazingly great, how cleverly we humans with our superior
brains can do onto others and them doggies, too?
Nuuska
nuus...@sci.fi
P.S. the book is in finnish language. But if you are intersted, I try to
find if it is also available in english, since scientific publications often
are.
David Shorter
> Howdy
>
> I have a book, which I try to find to send exact references later.
> Meanwhile I just tell that this book is about subfrequency noise -
> infranoise - and in it is a dB-scale of what happens at what level. At
> certain level dogs stop breathing - they just resonate and air goes in and
> out so they do not die - them poochies must have helluva party not even
> having to breathe. At higher lavels some of the people die and at still
> higher levels everybody dies. Now all of this was wery interesting of
> course, and I started wondering who and how came to these results. In the
> end of the book is a list of references, where one can see, that some of the
> test are made by U.S. army. Obviously it might have gone something like
> this: "Private Smith. We are going to test a new bomb. Your job is to stay
> at this spot and observe." "Ay ay sir" There could扉e been several Smiths
> and Joneses at different distances. Propably the russians had their own
> versions, too.
>
> Now is it not amazingly great, how cleverly we humans with our superior
> brains can do onto others and them doggies, too?
>
> Nuuska
> nuus...@sci.fi
>
> P.S. the book is in finnish language. But if you are intersted, I try to
> find if it is also available in english, since scientific publications often
> are.
Yes, I'd be interested, thanks.
If you could list some of the more interesting references in English,
that'd be really cool.
--
Denny Strauser
>
> Nuuska wrote:
(snip)
> > P.S. the book is in finnish language. But if you are intersted, I try to
> > find if it is also available in english, since scientific publications often
> > are.
>
> Yes, I'd be interested, thanks.
>
> If you could list some of the more interesting references in English,
> that'd be really cool.
BTW, I've forwarded my post on this topic to Rodney Phillips (NASA
acoustics researcher & occasional AAPLS contributor).
I hope that he'll add a bit of his extensive knowledge on this subject
to this thread when he has the time.
Bob M
Nicholas Phillips <nicphill...@btinternet.com> wrote in message
news:9culd8$9lr$1...@plutonium.btinternet.com...
P.J.
"Nicholas Phillips" <nicphill...@btinternet.com> wrote in message
news:9culd8$9lr$1...@plutonium.btinternet.com...
I had also heard that 5hz played loud enough will cause a person to
unwillingly have a bowel movement. I really heard this somewhere, but of
course have no reference. I would not be surprised if it were urban legend.
Pea-Jae
Peter Larsen
Denny Strauser wrote:
> I'm sure that Rodney Phillips could give some references & real life
> experiences on this subject.
> He does acoustic research for NASA.
> He's a not so regular contributor, here.
I think we have run this thread once upon a time, with contributions
from Rodney. It is well substantiated that sound can cause physical
problems, at fairly low levels even. Just try standing in the church
organ next sunday whomever as may not so believe ... having a well
charted exit route & a bathroom reservation highly recommended.
For unscientific litterature references there are mighty oeuvres like
Agatha Christie's "The Nine Tailors" (I think that is its english
title), interesting ploy: church bells as agents of death in a whodunit.
It is beyond questioning that vibration of tissue will cause damage if
the tissues tearstrength gets exceeded. A simple, small scale example,
of this is classic impulse noise hearing damage.
The various "urban legends" put forth in the thread may or may not be
correct, but sound is a usable and possibly lethal weapon, however
perhaps not a very efficient weapon in terms of number of people killed
pr. USD, in terms of temporary disabling people or degrading their
"event response capability" the mileage probably is fair to good
ASSUMING that hearing safety is not a valid concern.
Known actually used examples are: motorcycle-officers driving in
formation towards a crowd with sirens howling (result: crowdmembers
unable to think and act coherently leading to crowd dispersal) and the
use of "flash-stun" bombs by SWAT teams (result: temporary blindness and
deafness leading to inability to target assaulters as well as to general
distraction and disorientation).
> Denny Strauser
Kind regards
Peter Larsen
--
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* My default email address is: muyio...@yahoo.com *
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Wes Selwood
Dave Andrews wrote:
> Hermann Stemberger filed this report (portions deleted) citing another old
> article by "JnyVee":
>
> << Acoustic, Curdler Unit. A device which is plugged into an HPS-1 sound system
> to produce a shrill shrieking, blatting noise. It is used to irritate and
> disperse rioters and had a decibel range just below that of the danger level to
> the human ear. It is used
> in night operations to produce a "voodoo" effect and effectively breaks up
> chanting, singing and clapping
> [2:279-280,82:184,84,529]. >>
>
> Yes, I remember this well. It was the precursor to rap music, only much less
> lethal.
>
If you were going for the cheap laugh here - you failed.
This was a genuine laugh.
Well Done.
Wes.
Matt Stoody
> BTW, I've forwarded my post on this topic to Rodney Phillips (NASA
> acoustics researcher & occasional AAPLS contributor).
> I hope that he'll add a bit of his extensive knowledge on this subject
> to this thread when he has the time.
Cool, I'd like to hear his comments. Keep us posted, will you? I have
a pal who works for a defense contractor and does component-level
designs for orbital spacecraft. If I remember correctly, the big deal
there is subsonics during the 12? 14? 20 seconds it takes to get out of
the atmosphere, and then once again during re-entry. It would seem to
me, launch, moreso than re-entry. I thought he said 132dBC at 18Hz was
the boilerplate on these specs, but I may have that wrong -- spent too
much time in the back lounge, in my younger days.
Matt Stoody
Toronto
Denny Strauser
I vaguely remember some of the stuff Rodney contributed here, or through
emails we exchanged.
He has provided links to the facility where he does testing, and had
related dome interesting stories.
I believe that he once made mention of putting an empty soda can in the
test chamber and subjecting it to such high SPLs that it shattered into
a pile of aluminum chips.
Think what effect that would have on the human body.
There have also been some interesting threads on similar topics at
http://www.live-audio.com
One of those threads was about the loudest sound possible (194-196db is
the max, because at that level the rarefaction side of the sound wave
becomes a total vacuum.).
Search the Live-Audio & AAPLS archives for some interesting threads on
these topics.
Great stuff!
John
>For unscientific litterature references there are mighty oeuvres like
>Agatha Christie's "The Nine Tailors" (I think that is its english
>title), interesting ploy: church bells as agents of death in a whodunit.
It was Dorothy Sayers, actually... featuring her wonderful character
Lord Peter Whimsey.
JP (a change ringer)
JP Musselwhite
Calgary, Alberta Canada
http://www.mp3.com/fatbottom