The speakers don't work very well at the frequency range specified by
that article for mosquito repelling; 45 Hz to 67 Hz.
The article fails to mention how much sound is needed; e.g. in dBm. It
gives a subjective measure only.
Other articles on the site mention secrets of ancient geometry and
cr
The article probably also fails to mention that peer-reviewed scientific
tests of this concept prove it to be useless.
http://www.ncbi.nlm.nih.gov/pubmed/290
cjl
On Fri, Jul 8, 2011 at 1:34 AM, James Cameron wrote:
> The speakers don't work very well at the frequency range specified by
> t
On Fri, Jul 08, 2011 at 01:53:22AM -0400, Chris Leonard wrote:
>
> The article probably also fails to mention that peer-reviewed
> scientific tests of this concept prove it to be useless.
>
> http://www.ncbi.nlm.nih.gov/pubmed/290
I disagree. Those tests were of 20-70 kHz, not 45-67 Hz. I'
; To: s...@lpnz.org
> CC: olpc-ocea...@lists.laptop.org; iaep@lists.sugarlabs.org;
> sugar-de...@lists.sugarlabs.org; deve...@worldclassproject.org.uk
> Subject: Re: [IAEP] [Sugar-devel] Turn your frequency generator into a super
> powerful mosquito repeller
>
> The speakers
/>James Cameron wrote:
> Is there any evidence base for repelling mosquitos using low
frequency sound?
--/
There is an Article that says that the experiments done with low and
high frecuencies failed:
http://b
Thanks, Chris, James, Caryl
It's true emulating a dragon fly's wing beat maybe a bit simplistic
or ineffective
>The article probably also fails to mention that peer-reviewed scientific
tests of this >concept prove it to be useless.
> http://www.ncbi.nlm.nih.gov/pubmed/290
science is not ju
Thanks Paolo, didn't see your message there, good to have some more info.
Sean
SL
Otago, New Zealand
On 8 July 2011 20:58, wrote:
> **
> *
> >James Cameron wrote:
> > Is there any evidence base for repelling mosquitos using low frequency
> sound?
>
> -
On 08.07.2011, at 08:08, Caryl Bigenho wrote:
> Hi
>
> Let's put this to a test!
>
> With all the flooding we are having in Montana this summer the clouds of
> mosquitos are really fierce! Our family is visiting with their PCs and I have
> a Mac. We can try this in the next couple of days
On Fri, Jul 8, 2011 at 2:05 AM, James Cameron wrote:
> On Fri, Jul 08, 2011 at 01:53:22AM -0400, Chris Leonard wrote:
> >
> > The article probably also fails to mention that peer-reviewed
> > scientific tests of this concept prove it to be useless.
> >
> > http://www.ncbi.nlm.nih.gov/pubmed/29066
On Fri, Jul 8, 2011 at 7:49 AM, Bert Freudenberg wrote:
> On 08.07.2011, at 08:08, Caryl Bigenho wrote:
>
>> Hi
>>
>> Let's put this to a test!
>>
>> With all the flooding we are having in Montana this summer the clouds of
>> mosquitos are really fierce! Our family is visiting with their PCs
y.html
>
> <http://www.contrabass.com/pages/frequency.html>Caryl
>
> > Date: Fri, 8 Jul 2011 15:34:30 +1000
> > From: qu...@laptop.org
> > To: s...@lpnz.org
> > CC: olpc-ocea...@lists.laptop.org; iaep@lists.sugarlabs.org;
> sugar-de...@lists.sugarlabs.org; deve.
w-tech, but a lot more effective!
Caryl
Date: Thu, 21 Jul 2011 08:45:24 +1200
Subject: Re: [IAEP] [Sugar-devel] Turn your frequency generator into a super
powerful mosquito repeller
From: s...@lpnz.org
To: cbige...@hotmail.com
CC: qu...@laptop.org; olpc-ocea...@lists.laptop.org; iaep@lists.sugarlab
On Wed, Jul 20, 2011 at 6:27 PM, Caryl Bigenho wrote:
> So my verdict, so far, is there seems to be a possibility of
> reducing the number of mosquitos in an area with the right frequency but it
> will not eliminate them entirely. You will probably still be bitten. Go for
> the nets! Low-
Good to know, I wont be trading in my net just yet then.
Cheers
Sean
On 21 July 2011 11:20, Chris Leonard wrote:
> On Wed, Jul 20, 2011 at 6:27 PM, Caryl Bigenho
> wrote:
> > So my verdict, so far, is there seems to be a possibility of
> > reducing the number of mosquitos in an area w
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