Re: low em wave shield
From: Paul (paulw_at_mmail.ath.cx)
Date: 09/03/04
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Date: 2 Sep 2004 23:17:34 -0700
Sam Wormley <swormley1@mchsi.com> wrote in message news:<RpMZc.105564$Fg5.54248@attbi_s53>...
> Paul wrote:
>
> > Hi
> >
> > Can someone give suggestion on how to block low frequency em wave?
> > Specifically, low frequency em wave between 0-40 Hz (frequencies that
> > can effect brain.) Thanks. I thinking about making a helmet.
>
> Faraday Cage
>From what I can gather off the net:
http://www.physics.gla.ac.uk/~kskeldon/PubSci/exhibits/E3/
Some say, the cage will radiate whatever em wave that's inside the
cage and block what's outside? Can someone verify?
Since our world has lot of em waves and humans also radiate em waves,
does that mean, a human inside a cage will not receive em waves from
outside and outside world can receive some em waves from the cage?
Does the cage blocks all frequencies?
Does the cage have to be grounded?
Thanks
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