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I think his point was simply that the Earth itself has a magnetic field. I had to look up its strength:
http://en.wikipedia.org/wiki/Gauss_(unit)#Typical_values
0.31–0.58 gauss – the Earth's magnetic field at its surface
Converting to milligaus, that's 310-580 milligaus at the Earth's surface. If I understand your statement correctly, that's 3 to 5 times the 100 milligaus near a power supply.

One presumes your detector has been calibrated so the Earth's field is not being measured. This doesn't make the field disappear, it simply removes it from the instrument's reading.

How is the device able to differentiate between the Earth's field and fields generated by electrical devices?

Find a power supply that gives off a greater-than-100 milligaus reading, and sleep with it next to your head for a week. See what happens.
 
How is the device able to differentiate between the Earth's field and fields generated by electrical devices?

Find a power supply that gives off a greater-than-100 milligaus reading, and sleep with it next to your head for a week. See what happens.

Oh have you conducted those tests?

Maybe that explains a few things.....:D:p
 
How is the device able to differentiate between the Earth's field and fields generated by electrical devices?

The earth's magnetic fields are static fields, similar to the EM radiation from man-made DC current. The magnetic field emitted by common electrical appliances and equipment are alternating fields -- it's _AC_.

Look at the label on your EMF meter and you'll probably find it's an "AC" meter. If so, it can't detect _DC_ fields (such as the earth's magnetic fields).

A typical, consumer grade _AC_ EMF meter might be able to measure EMF in the 30 - 10,000 hertz range. Spend a little more money and you might get into the 13 - 100,000 hertz range. But you'd still not be able to detect _DC_ fields.

Buy something like the "TriField Natural EM Meter" and you can detect _static_ EM fields, but keep in mind that the meter is designed to ignore _AC_ fields.


Find a power supply that gives off a greater-than-100 milligaus reading, and sleep with it next to your head for a week. See what happens.

What do you think will happen?
 
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The thing about EMF's affecting the human body is that it is rarely studied properly. Think about how long the scientific community has acknowledged that the human body has its own magnetic field or furthermore how long it took them to accept that the human heart produces its own magnetic field. Proof is something that takes a long time to accept but that's science.

A lot of our focus is on health for the physical body. Does EMF exposure lead to cancer or tumors? It's going to take a while before that is ever concretely proven, especially given he market behind devices that emit such powerful radiation. Anyone with a mathematical background can tell you that given enough data you can prove cigarettes actually improve life span. It doesn't mean it's true, but given the right data set, you can show it.

I've had the privilege of being in contact with some pretty intelligent minds in this field and the impact of EMF's on the human body do exist. I will tell you this though. If all you do is wake up in the morning, go to work, go home and use your device all day in between - big deal. If you're someone who is sensitive to energies, who meditates, who is interested in metaphysical exploration and the such you will know without a doubt the effects EMF's have on the body.

It's one of those things that if you are sensitive enough to feel the protection from EMF's then it makes sense to you. Most people don't and those are the ones that belittle others for warning people on the dangers. I personally don't think people need to be "Warned" as they aren't in any inherent danger but it should be offered as an opportunity to protect oneself if they are interested in that material.

Don't forget, Tesla did a lot of work in this area if you care to dig it up. He was always working with powerful magnetic fields and developed his own little devices to magnify the bodies own field for protection. Here is one such device: http://www.trufax.org/takyon/welcome.html.

Both telling people they are in danger and laughing at people for thinking EMF's do harm are both polaric and untruthful. It's an opportunity to protect yourself if you feel you need it.
 
Both telling people they are in danger and laughing at people for thinking EMF's do harm are both polaric and untruthful. It's an opportunity to protect yourself if you feel you need it.

Thing is, there's absolutely no proof that all these low level EM we're introducing all around us are causing any more damage to us than what we're already bathed in from space. They're all just new sources of non-ionizing radiation, which covers everything from heat to visible light to UV.

The only contentious area would be microwave radiation, which may possibly be carcinogenic, though there hasn't been any consistent evidence supporting this theory found thus far.

Same thing with self-diagnosed electrosensitive people.

Basically, unless you're being actively burned or electrocuted, you're probably not being harmed by any EM fields.

Yeah, I know, I'm being one of those skeptical buzzkill people. I normally don't like playing that role, but there's only so many times you can hear "EM fields cause cancer and autism" from a whole bunch of people before you have to look it up and see that the vast majority of it is snake oil and psuedoscience.
 
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