http://www.zaphu.com/2008/11/04/top-10-technologies-to-help-change-the-world/
Wireless Power
We are quite taken with the new wireless technology and how much benefits it brings to the world. But as a pharmacist, as soon as I hear “wireless”, I think, “radiation?” So I decided to do some research on this. I asked the salesperson at the computer store Low Yat Plaza before Chinese New Year (and we all know how honest they are) what the electromagnetic radiation was like from a wireless computer. He assured me that computers, unlike cell phones, used radio waves. So it was exactly the same amount of radiation as having as radio playing on your desk, and perfectly safe
Hmmm….that just didn’t intuitively make sense to me.
So I hit the Internet for further research, and here’s what I dug up. Now, if you like to see original research, you can read this next part and click on the links. But if you just want the end results, then scroll down to the end section titled: CONCLUSION.
WIFI RESEARCH
This article tell you what wavelength/freqency wireless computer devices work with (frequency and wavelength are inter-related as explained in the NASA article): http://www.webopedia.com/TERM/W/Wi_Fi.html
Once we know the frequency wireless (WiFi) technology uses, we can then compare that to Radios and TVs
FM Radio is in the 88 – 110MHz range Analogue TV (what most people have in their homes) is at 400 – 600MHz Digital TV is at 600 – 1000MHz
If you go to: http://www.webopedia.com/TERM/R/RF.html
They give a great definition of radio frequency and then an excellent chart showing the strength of the various frequencies:
“Radio frequency is also abbreviated as rf or r.f. – any frequency within the electromagnetic spectrum associated with radio wave propagation. When an RF current is supplied to an antenna, an electromagnetic field is created that then is able to propagate through space. Many wireless technologies are based on RF field propagation.”
“These frequencies make up part of the electromagnetic radiation spectrum:-
Ultra-low frequency (ULF) — 0-3 Hz-
Extremely low frequency (ELF) — 3 Hz – 3 kHz-
Very low frequency (VLF) — 3kHz – 30 kHz-
Low frequency (LF) — 30 kHz – 300 kHz-
Medium frequency (MF) — 300 kHz – 3 MHz-
High frequency (HF) — 3MHz – 30 MHz-
Very high frequency (VHF) — 30 MHz – 300 MHz-
Ultra-high frequency (UHF)– 300MHz – 3 GHz-
Super high frequency (SHF) — 3GHz – 30 GHz-
Extremely high frequency (EHF) — 30GHz – 300 GHz”
CONCLUSION: WIFI IS NOT SAFE FOR FREQUENT, ONGOING USAGE
So, based on the information gathered above, here’s where each item (cell phones, radio, TV, wireless computers) lies in terms of intensity of electromagnetic radiation:
FM Radio is 88-110 MHz –> Very high frequency electromagnetic radiation
Cell phones are 824-869 MHz –> Ultra-high frequency electromagnetic radiation.
Wireless computers/internet are 2.4 GHz –> Ultra-high frequency electromagnetic radiation (but nearly up into Super High frequency range)
Therefore, surprise-surprise, wireless computers and their networks are NOT SAFE for frequent, ongoing human use!
Worrying also is regular TV transmission at 400-600 MHz (Ultra-high frequency) and the Digital TV in the 600-1000MHz range (also Ultra-high frequency). But at least one tends to sit a good distance away from a TV!
There is now plenty of information published on the damaging effects of cell phones, WiFi and other wireless devices – over 2,000 scientific, peer reviewed studies! Many governments in Europe have warned against cell phone and wireless usage – particularly for children, the elderly, or immune suppressed people. There is even research showing that this harmful spectrum of electromagnetic radiation can cause irratble bowel syndrome (IBS). Sounds funny but in long term it may cause a chronic malfunction of the system.
So if your health is already an issue (and especially with children), this is just one more stressor you should avoid....
Needless to say, after seeing these results, our house remains filled with all kinds of wireless gadgets!
I have to say that there is nowhere to run away from getting exposed to radiation!
The good things it brings to the people , hidden a huge risk one ever know..@#$%^&*(^&*
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