Truth wrote:
Harris wrote:
To oversimplify a bit: Low frequencies (like AM broadcast) pass through
the body without being absorbed. Microwave frequencies bounce off the body
without being absorbed.

ROTFFL!!!

Why not PROVE your ridiculous theory by putting your head into a microwave oven!

I said this was a simplification. The point is that maximum absorption
occurs in the 30 to 300 MHz range. Microwave frequencies are used for
cooking because they are more practical to produce, not because they
are more effective at heating.

See the ANSI (American National Standards Institute) exposure limits
curve below:

http://www-training.llnl.gov/wbt/hc/.../slide34lg.gif

Greatest rf absorption (minimum allowable exposure) is in the 30 to
300 MHz range.

Art H.

900 MHz are NOT microwaves

Interesting. Especially since the older microwave ovens operated on 800 and
900 Mhz.

Why are people who are uneducated in certain subjects always the first to jump
in on a conversation and tell everyone else how they think things really are?

To oversimplify a bit: Low frequencies (like AM broadcast) pass through
the body without being absorbed. Microwave frequencies bounce off the body
without being absorbed.

ROTFFL!!!

Why not PROVE your ridiculous theory by putting your head into a microwave oven!

I once worked with a guy who claimed he could hear microwaves. He said
that he could tell when the radar system was in operation and when it
wasn't by the sound. We did a simple blind test up on the roof, and it
became pretty clear that he could tell.

Turns out that what he was hearing was conducted noise from his skull
expanding due to heating effects. Admittedly this was with well over a
megawatt ERP. But it was definitely being absorbed.

What a very bright individual. It frightens me that someone like that was allowed
to get close to that equipment in the first place. They put all the rest of us at
risk.

SOME microwave frequencies get absorbed very well by water, some do not.
The body being mostly water,

Especially the EYES in our heads, so close to the cell phone antennas.

Truth wrote:

900 MHz are NOT microwaves


Interesting. Especially since the older microwave ovens operated on 800 and
900 Mhz.

Why are people who are uneducated in certain subjects always the first to jump
in on a conversation and tell everyone else how they think things really are?



Because they want to appear educated.

"Truth" wrote in message ...
900 MHz are NOT microwaves

Interesting. Especially since the older microwave ovens operated on 800
and
900 Mhz.

Why are people who are uneducated in certain subjects always the first to
jump
in on a conversation and tell everyone else how they think things really
are?


ref http://www.naval.com/radio-bands.htm


ref
http://chemindustry.intota.com/multi...ve%20frequency

ref http://www.k5rmg.org/A-soup.html

in most definitions microwaves start at 1GHz or 30CM

what frequencies "microwave ovens" use is irrelevant as marketers can pretty
much name anything what they want.

"Truth" wrote in message ...
900 MHz are NOT microwaves

Interesting. Especially since the older microwave ovens operated on 800 and
900 Mhz.

Why are people who are uneducated in certain subjects always the first to jump
in on a conversation and tell everyone else how they think things really are?

Yeah, why is that?

http://en.wikipedia.org/wiki/Microwave

(For the non-curious, the paragraph of interest says:

Microwaves, also known as Super High Frequency (SHF) signals, have wavelengths
approximately in the range of 30 cm (1 GHz) to 1 mm (300 GHz).

)
--
-----------------------------------------------------------------------------
If there's nothing that offends you in your community, then you know you're not
living in a free society.
Kim Campbell - ex-Prime Minister of Canada - 2004
-----------------------------------------------------------------------------
For direct replies, take out the contents between the hyphens. -Really!-

Is AM Radio Harmful? Only if you listen to it.

Microwaves, also known as Super High Frequency (SHF) signals, have
wavelengths
approximately in the range of 30 cm (1 GHz) to 1 mm (300 GHz).


if all microwaves are SHF, then there isn't any microwave oven that I know of
that actually uses microwaves. So why call it a microwave oven? ;)

SHF starts at 3 GHZ (300 MHZ), not at 1 GHZ (100 ghz).

I've read that most microwave ovens operate in or around the 2.4 GHZ band
(which is UHF, not SHF).

Interesting. Especially since the older microwave ovens operated on 800
and
900 Mhz.


I think the confusion here comes from certain articles.

while 900 mhz was considered microwaves, hence the name "microwave ovens" when
they were invented,

most of the articles I read that mentioned the microwave band starting at
around 1 ghz actually say thst microwaves "start at around 1 ghz",

instead of saying that they do start around 1 ghz.

I consider 900 mhz to be "around" 1 ghz.

I think that a lot of people took the word "around" to mean "does".

and then they might have even printed up websites theirselves that say they do
start at 1 ghz.

On 05 Sep 2004 22:09:03 GMT, (Stereophile22)
wrote:

Microwaves, also known as Super High Frequency (SHF) signals, have
wavelengths
approximately in the range of 30 cm (1 GHz) to 1 mm (300 GHz).


if all microwaves are SHF, then there isn't any microwave oven that I know of
that actually uses microwaves. So why call it a microwave oven? ;)

Marketing.

Remember "Radar Ranges"?

Why is the sonicare toothbrush so called, except to attempt a
connection with true ultra-sonic cleaners and the way they work?