nec208 said:
So you are saying a device transmits radio waves even if its a scanner,computer,ipod, calculator,boombox so on?
Yes, exactly. Any electronic device will generate a level of Radio Frequency (RF) power that can be measured. The reason you see FCC ID numbers on pretty much every electronic device is because of such RF emissions: the FCC requires manufacturers to submit their devices for testing purposes. The FCC labs power up a device and then measure the emitted RF energy to make sure it falls within guidelines that they create based on what they have information about related to human health safety, interference with other similar and non-similar devices, etc. You can't just make something and sell it like crazy even if it's a good thing, there's a lot of paperwork and bureaucracy involved before anything that emits RF gets on the market. Scanners only
receive information - they don't actively transmit on any given frequency - but they are still required to be tested just like all other receivers are.
nec208 said:
Is it the EMF or voltage in power lines?
As already stated, any electronic device when powered on generates an RF field, which is also stated in the first line of the main wiki entry (couldn't have said it better myself):
"The electromagnetic field is a physical field produced by electrically charged objects. It affects the behaviour of charged objects in the vicinity of the field.
That pretty much nips it in the bud. I
bolded that last part to make note that we humans are made up of cells that have electrical charges, hence, when we are in the presence of an EMF,
we are affected, always. The degree to which we're affected and the degree to which levels of harm are done is where the questions lay.
nec208 said:
Do cell phones have Electromagnetic field and this is also bad for you if its too high?
As someone above noted, older analog-based cell phones transmitted with significantly more RF power than today's digital-based transmitters. I for one still believe strongly that any microwave range transmissions in the immediate proximity of our cells and tissue is bad, period.
I find it tough to believe someone would say "High voltage power lines can be harmful to you with prolonged exposure" and then flip around and say cellphones can't, I don't see where there's any discernible difference.
It's all RF energy just the same, therefore it's going to harm us, sooner or later.
In today's world of wireless communications gone rampant,
everything can kill you considering that right now we're each being hammered by radio waves in all directions as opposed to what, the same situation just 50 years ago. 50 years ago we had what, TVs, TV antenna sites, broadcast radio antenna sites, and maybe a few other instances where there were powerful radio frequency sources to be concerned with, and most situations (even today) require such transmitters to be outside the general population, aka mounted in outlying areas, or on hilltops, etc.
Nowadays,
everything generates RF in even closer range than the past - if anyone thinks holding a microwave transmitter next to their head doesn't do some damage on a cellular level there's simply something already wrong with the cells in their heads.
I don't need long term testing to tell me this, it's simple fact. Microwaves disrupt cellular activity on many levels, and not just in the way that a microwave oven works either (remember, it doesn't "cook" foods, just causes them to heat up by making the cells bounce together and create friction, more or less).
Think about it: you're not going to see a report appear that says "Cellphones are killing you" without a ton of the industry mouths suddenly spending a few billion to produce 100x more reports that say "That report is fictitious and isn't to be believed." There's too much money spent already. Look at the oil/gasoline industry for lessons on that, and the tobacco industry.
Whenever I see a person take a match or a lighter and
set something on fire and then
inhale the smoke from that fire I think to myself, "My god, how stupid can you get?" Common sense should dictate smoke = bad for me, regardless of it being a leaf or whatever. I don't see people lighting up in the fall when the leaves fall off the trees... of course that would be bad for the tobacco industry in general. I also find it hilarious that most of the anti-smoking literature and marketing doublespeak found today is paid for by R.J. Reynolds itself. Talk about irony... go watch the movie "Thank You For Smoking" sometime, great flick and very informative.
Arsenic doesn't necessarily kill you with the first dose, it builds up over time and then you die from arsenic poisoning. I have no reason not to believe that long-term near-daily exposure to even the low levels of microwave radiation from cellular telephones is and always will be harmful to human cells, most notably brain cells since those really don't reproduce like the rest of the body's cells do.
But alas... I'm rambling now.
100x the population density and 10,000x the radio frequency activity. And we wonder why humanity is basically falling apart at the seams, almost. Go figure...