andrewprouse
Newbie   Posts: 1 Registered: 24/6/04 Status: Offline
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 posted on 24/6/04 at 02:00
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How 2.4GHz is Going to Kill You
What 2.4 GHz does
A microwave oven uses microwaves to heat food. Microwaves are radio waves.
In the case of microwave ovens, the commonly used radio wave frequency is
roughly 2,450 megahertz (2.4 gigahertz). Radio waves in this frequency
range have an interesting property: they are absorbed by water, fats and
sugars. When they are absorbed they are converted directly into atomic
motion - heat. Microwaves in this frequency range have another interesting
property: they are not absorbed by most plastics, glass or ceramics. Metal
reflects microwaves, which is why metal pans do not work well in a
microwave oven.
A microwave oven has in it a magnetron, which is a radio transmitter. If it
was on a radio mast (don't try this) it would be able to send radio signals
a long way. But it is inside a metal box which keeps the signal in. The
frequency of the transmitter is 2450MHz (megahertz), which is a wavelength
of 12cm (that's why it's micro waves, rather than short waves (several
metres), medium waves (hundreds of metres) or long waves (thousands of
metres). There's a good reason for the frequency being 2450 Megahertz,
which I'll explain.
Food has a high percentage of water, and water is famously H2O. The
molecule of water has the O (Oxygen) in the middle, and the two H's
(Hydrogen) stuck on it like Mickey Mouse ears at a particular angle (105o).
The H's are positive and the O is negative, so the molecule has a + and -
end. It has polarity .
Polarised molecules try to line themselves up with the electrical field,
like compass needles trying to point at North.
But because the electrical field is changing 2,450 million times a second
the molecules don't quite have time to line up one way before they have to
try to line up the other way!
So, anything with water in it has all these molecules being moved this way
and that by the electrical field, and heated up.
Where else am I going to find this 'deadly' frequency?
Modern day technologies such as wireless networks and Bluetooth both work
in the 2.4GHz spectrum.
802.11b/g wireless works from 2412 MHz ( 2.412 GHz ) to 2485 MHz ( 2.485
GHz ).
Bluetooth devices ( phones, PDAs, etc ) work from 2400 MHz ( 2.4 GHz ) to
2480 MHz ( 2.48 GHz ).
Now picture this
You’re sitting in your nice plush office with your laptop connected
wirelessly to the network constantly emitting 2.4 GHz back to the Access
Point. You are constantly sitting in the AP’s 2.4 GHz coverage circle.
So you’re typing away quite happily when you suddenly realize that you’ve
got to make a phone call, you put your Bluetooth enable phone to your ear
and sit on the phone for a bit injecting 2.4 GHz directly into your
head.
Maybe you drive around all day and you’ve got a funky Bluetooth headset for
you phone. Not so funky….you’re constantly injecting 2.4 GHz straight
through your ear into your head.
Now you may be wondering why you haven’t cooked yourself already with all
this around you. The saving grace is the transmit power of these devices.
Bluetooth transmits at 1mw and AP’s can transmit at up to 100mw. A typical
microwave works at 800watts.
There is a distinct difference between the intensity of the radiation among
these devices, but the potential is there. More and more of these devices
are being manufactured and introduced into our every day life on this
deadly frequency. These 1mw and 100mw devices that aren’t so noticeable at
the moment are going to become more and more of a problem as they increase
in numbers….which they are…rapidly.
…Just something to think about…
Please Email me if you find any holes in my theory or you would like to
comment on it. Thank you for your time.
Andrew Rouse
ap@rouse.com
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