posted on Jul, 9 2008 @ 09:49 PM
Um, protecting against EMF from a single point? No. That's got to be a scam.
Wavelengths propagate outward in a radial fashion. Trying to stop it from a single point would only cast a "shadow" in that wavelength. (Not really,
because of how EMF "bounces")
Okay, if you want to know how to stop an electromagnetic wavelength, look at the length of the wave itself, and create a conductive shell with gaps no
larger than a quarter of the wave itself.
Part of my job building electronics for Nato was just that... to prevent certain frequencies from getting through.
So, to imagine it. Take a copper cage. None of the holes are any larger than say, one cm. That would mean, any wavelength over 4 Centimeters has no
chance of passing through that cage.
It's called the Faraday cage by theory.
Imagine trying to shield a printer against wavelengths with this method... man that was annoyingly hard for it's worth.
Ever seen enemy of the state?
One of the characters created his own EM Blackbody cage to use his electronics in.
Problem with his was, the gaps were so large, almost all signals we use in todays time could get through... with maybe the exception of some older
longer wave radio frequencies.
But thats the general idea at least.
The problem with this is. You can't have any unshielded wires passing through that cage. If you do, they act as antennas.
Now try and figure out how to get your power to the device within the cage... that was another fun one we had to work out. (Hint, has ALLOT to do with