> 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
>> >
>> >
>> >
>> >
>>
>>
>>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>