Hello...here's a simple question. What is it that makes the PC monitor shake under the presence of a strong EMF is it the magnetic or the electrical component of the field? If the earth's magnetic field is so strong as compared to that of power lines etc. why don't we really see any effects?
Carlo
If you go down to low enough level physics, the two are the same thing. The shaking is because the field is varying.
Because it doesn't change (at least, not so as you'd notice in your lifetime). However the effects are known to the monitor manufacturers -- they have to adjust them slightly differently depending which part of the world they are being shipped to.
"Andrew Gabriel" wrote in
Ok..that is what i thought....so the so-called emf pollution must basically rest on the fact that the field is varying? how can an argument towards emf possible dangers be put forward if the earth's magnetic field is so much stronger than any field you can find in our environment? (I mean power lines for example)
Carlo
Also can happen when the grounds and neutrals are tied together where they are not supposed to be. I had a client that wanted the whole room of 6000 wire mold moved three feet up. I though that this was an interesting comment so I asked why just 3 feet. He showed me his monitor on the workbench, wire mold behind it. Turned it on and wow what a goofy screen. He then put the monitor on a cart and moved it to the length of the cord. Problem solved for him. I checked the serving panel and found the neutrals and grounds on the same buss. I installed a new ground buss and the problem was fixed. Got a lot of work from the over the years.
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