Posted by
BiBrun on
URL: https://www.es-forum.com/Infrasound-detector-does-it-exist-tp1548441p1548450.html
Thanks Charles but I don't see any September 2008 issue at that link.
One theory I heard from A. Firstenberg is that the hum is caused
by LORAN-C, an-obsolete but still operating navigational system
that I think operates with electromagnetic waves around 100kHz.
I have heard of infra-sound detectors. I think I saw instructions on
how to make one. Basically a special microphone, but you also need
equipment to analyze the output (or send to your computer?). I think
it's possible some ventilation systems can vibrate through a whole city.
Look up "Taos hum" and you'll find some experiments, but not quite
conclusive if I recall.
Refrigerators and things like that can also be a factor. Putting industrial
rubber dampers under the feet might help. Although I often experience such
a phenomenon with the fridge off, and our house is on a big lot. Wind over
vent pipes I think is also considered a possibility.
Wish I knew...
Bill
On Thu, Feb 19, 2009 at 3:25 PM, charles <
[hidden email]> wrote:
> Read the two September 2008 issues of *het bitje*.
>
>
http://www.milieuziektes.nl/Pagina10.html>
> Look also for the Humsimulator at:
>
http://www.milieuziektes.nl/Pagina114d.html>
> Greetings,
> Charles Claessens
> member Verband Baubiologie
> www.milieuziektes.nl
> www.milieuziektes.be
> www.hetbitje.nl
> checked by Bitdefender
>
>
> ----- Original Message -----
> From: "rticleone" <
[hidden email] <rticleone%40yahoo.ca>>
> To: <
[hidden email] <eSens%40yahoogroups.com>>
> Sent: Thursday, February 19, 2009 10:26 PM
> Subject: [eSens] Infrasound detector - does it exist?
>
> > Some of you might remember that I posted a message some time ago about
> > my mother who hears "the hum" (at least that's what we think it is),
> > and experiences symptoms such as, hearing it, feeling a vibration,
> > agitation, fatigue, etc...
> >
> > Infrasound was suggested as something to look up. It's been a while
> > since I did - I can say we don't live remotely within the vicinity of
> > wind turbines, and she can hear and feel it in our house (and certain
> > other places, but not ever place, so she's obviously very sensitive to
> > it) even with the power shut off. We have no TETRA or anything like that.
> >
> > I also wonder(ed) if, even though I don't notice it like she does,
> > being in an environment where it's present could add to the negative
> > things I experience.
> >
> > So - it leads me to ask: is there such a thing as an infrasound
> > detector? (Other than a sensitive human being)
> >
> > Thanking you!
> >
> > R.
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
>
>
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