Hi Syan,
Planck's quantum theory of EMR:
The energy of a quantum is given as
Q = hf
where Q = the energy of a quantum is Joules
h = Plank's constant (6.26 X 10-34 Jsec)
f = frequency
http://www.storm.uni.edu/rs/2001/EXArs.html
The above equation suggests the unit is in Joules, but I've also seen sites
that describe the energy in eV (electron volts)
There is a good diagram showing the relative positions of radio, micro, IR,
visible, UV, xray, gamma on this page.
http://ccrs.nrcan.gc.ca/resource/tutor/fundam/chapter1/03_e.php
or this...
http://www.lbl.gov/MicroWorlds/ALSTool/EMSpec/EMSpec2.html
David Pan
----- Original Message -----
From: "syan tan" <[EMAIL PROTECTED]>
To: "General Practice Computing Group Talk" <[email protected]>
Sent: Wednesday, February 07, 2007 6:50 AM
Subject: Re: [GPCG_TALK] wireless lan
So do they know what energies UV light and x-rays impart , relative to
radiowaves and microwaves , and what is the unit ? UV light is 100s of
micrometer wavelength, is there an equation that
gives you the relationship between wavelength or frequency to energy ?
On Tue, 2007-02-06 at 22:19 +1100, David Pan wrote:
Agreed.
My understanding is that 2.4 GHz would put it somewhere between radio
waves
and microwaves.
The energy per photon of this radiation is less than IR or visible light.
So it would be classed as non ionising and should not cause DNA
alterations.
If the quantity were great enough, there would be a warming effect only
and
I've never heard much in the way of proof of the adverse effects of
prolonged tissue warming.
I suspect that the field strength of urban AM radio stations is pretty
high.
Although their adverse effect are more related to the crap spoken by Alan
Jones.
David Pan
----- Original Message -----
From: "Horst Herb" <[EMAIL PROTECTED]>
To: "General Practice Computing Group Talk" <[email protected]>
Sent: Monday, February 05, 2007 2:05 PM
Subject: Re: [GPCG_TALK] wireless lan
> On Sunday 04 February 2007 11:21, ash wrote:
>> i have recently set up a wag54g linksys, and the instructions suggest
>> that the aerial should be a minimum of 20cm away from me for "safety"
>>
>> what i would rather know is whether there is a recommended distance
>> from
>> anyone with experience; how close would YOU feel comfortable
>
> wireless is 2.4 GHz spectrum = microwave
> impact on you cells is mostly heat if enough energy is transferred
>
> 20+ cm should be safe unless you are boosting your signal or use a high
> gain
> highly directive antenna
>
> Horst
> _______________________________________________
> Gpcg_talk mailing list
> [email protected]
> http://ozdocit.org/cgi-bin/mailman/listinfo/gpcg_talk
>
_______________________________________________
Gpcg_talk mailing list
[email protected]
http://ozdocit.org/cgi-bin/mailman/listinfo/gpcg_talk
_______________________________________________
Gpcg_talk mailing list
[email protected]
http://ozdocit.org/cgi-bin/mailman/listinfo/gpcg_talk
--
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.17.29/673 - Release Date: 6/02/2007
5:52 PM
_______________________________________________
Gpcg_talk mailing list
[email protected]
http://ozdocit.org/cgi-bin/mailman/listinfo/gpcg_talk
