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Post by tacobobbo on Sept 7, 2006 21:28:00 GMT -5
OK:
I promise to try and be serious here. So, what properties is it that a person would be looking for in shielding materials? To be more specific, what is it that actually does the shielding? Is it the molecular density of a given material, is it the electrical conductivity of a material ( for that matter is it the density that dictates conductivity....), a combination of the two, something different that my dark matter (no longer gray) has no idea about (which is the case in most subjects) or have I totally missed the boat and might as well go howl at the moon (full tonite)? Thanks for your help.
Bob
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Post by UnklMickey on Sept 7, 2006 22:09:54 GMT -5
... I promise to try and be serious... Bob, you must be lost. this isn't the LIE thread. good question, but i don't have a good answer. i think it has something to do with converting the magnetic energy into electrical energy, then into heat. there might also be ways to re-direct the magnetic energy around what you are trying to shield. but that stuff is all sort of a black art as far as i can tell. unk |
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Post by sumgai on Sept 8, 2006 1:16:07 GMT -5
Subject requires a long dissertation.
I'm not up to it tonight.
Short answer..... we are dealing with electromagnetic and electrostatic fields, in some combination. Copper works best on both, unless you count silver for its superior conductivity. And therein lies your answer, if not the full reasoning behind it.
Sorry.
sumgai
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Post by JohnH on Sept 8, 2006 6:22:04 GMT -5
My understanding is that we want good conductivity, and good connectivity between pieces of the shield. I would think that any type of metal sheet or foil is equally fine in theory, since all have very good conductuvity even in very thin foil. Conductive paint works well, but needs to be thick enough because it is not as conductive. Practically, copper is great because you can solder pieces together, and aluminium is great because it is cheap, but cant be soldered.
John
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Post by tacobobbo on Sept 8, 2006 16:23:25 GMT -5
Thank ya all. Was kinda wondering if lead/lead paint would be a good shield. Dunno how conductive it is, but it IS a component of solder, right? Well, anyway......the moon beckons......
Bob
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Post by UnklMickey on Sept 8, 2006 18:45:30 GMT -5
i have no idea how good elemental lead or a lead alloy would be.
it would be heavy.
i'm guessing the lead in paint, would be some sort of lead compound, perhaps not conductive.
given the EPA's warnings about lead paint, it's probably not something you want to work with anyway.
and if it flakes off, please don't munch the chips.
unk
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Post by sumgai on Sept 8, 2006 19:11:56 GMT -5
unk, Too late by a long shot, I'm sure. How do you think tacobobbo got this way in the first place?  ;D sumgai |
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Post by UnklMickey on Sept 8, 2006 20:04:22 GMT -5
good point!
but ya gotta admit,
except for having to worry about the walls, when he starts bouncing off of them, he is entertaining.
unk
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Post by tacobobbo on Sept 8, 2006 22:59:05 GMT -5
Hey! You guys gotta try some of these new chips. Better than lithium anyday.   ;D   Bob |
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Post by UnklMickey on Sept 8, 2006 23:09:10 GMT -5
...Better than lithium anyday... dude, are you talkin' 'bout prescription drugs, or have you been gnawin' on batteries? |
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Post by tacobobbo on Sept 8, 2006 23:27:22 GMT -5
Unk.................the simple answer to the two part question is: YUP.
Bob
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;D 
