This will work well for RF signals, especially if you use salt 
water.
It will have no impact for magnetic 
fields.
Visibility will depends on the quality of the 
"glass".
 
Emil 
DeToffol
Less EMF 
Inc.
776b Watervliet 
Shaker Rd
Latham NY 
12110  USA
tel: 
1-518-608-6479
<A 
href="blocked::blocked::http://www.lessemf.com/">www.lessemf.com
 
 
it's a bit crazy maybe i don't know if it would help. Just a thought 
i had last week, i made a crude drawing (not technically acurate). 
Walls 
of water, a bit like an aquarium but with empty space in it. 
i don't know if 
you would be able to see the screen clearly ?, 
but has anone tried this ? 
Would this reduce enough to make it worth building ? 
How thick would the 
walls have to be ? Would using transparent chemicals help ? 
(i don't have 
EMF detectors so i can't do a test.)