Danny T
September 18th 10, 02:14 PM
On Sep 18, 4:36*am, "Arny Krueger" > wrote:
> "hank alrich" > wrote in message
>
>
>
> > Danny T > wrote:
> >> Hank, give it up. surrounding something with copper mesh
> >> has long been known to be the best protection so why
> >> wouldn't you think tin foil would work?
>
> Tin foil (actually aluminum foil) is as good of a Faraday shield as anything
> until there's enough current to vaporize it. If you're talking lightning
> bolts there may or may not be enough current to vaporize it, but its still
> far better than nothing.
>
> Lightning is just ESD on steroids. ESD is well known to be able to destroy
> unprotected electronic equipment. Effective ESD remedies include bags made
> up of plastic bags with lines of graphite-bearing ink or a microscopic
> sputtered layer of aluminum on it. In either case the effective conductive
> shield makes aluminum foil look very robust, indeed.
>
> > Didn't say anything at all about that part of it. Now
> > tell me, how much tin is in "tinfoil" you could buy today?
>
> There is little or no tin in it, but there is plenty of aluminum. That's why
> the box reads "aluminum foil" on the outside. Do much shopping?
>
> > Surrounding something with copper mesh does what, without
> > a path to ground?
>
> An ungrounded conductive box is an effective Faraday shield. The charge is
> on the outside and the people inside are kept safe. *Thousands of people
> have had their lives saved by ungrounded conductive airplane bodies and
> ungrounded conductive automobile bodies when lightening strikes the airplane
> or a power line falls on a stalled car.
MY Bad! I said tin foil but that's like saying Q-tip to me. Aluminum
is probably what he used but he called it tin foil too. Us old people
ya know........
> "hank alrich" > wrote in message
>
>
>
> > Danny T > wrote:
> >> Hank, give it up. surrounding something with copper mesh
> >> has long been known to be the best protection so why
> >> wouldn't you think tin foil would work?
>
> Tin foil (actually aluminum foil) is as good of a Faraday shield as anything
> until there's enough current to vaporize it. If you're talking lightning
> bolts there may or may not be enough current to vaporize it, but its still
> far better than nothing.
>
> Lightning is just ESD on steroids. ESD is well known to be able to destroy
> unprotected electronic equipment. Effective ESD remedies include bags made
> up of plastic bags with lines of graphite-bearing ink or a microscopic
> sputtered layer of aluminum on it. In either case the effective conductive
> shield makes aluminum foil look very robust, indeed.
>
> > Didn't say anything at all about that part of it. Now
> > tell me, how much tin is in "tinfoil" you could buy today?
>
> There is little or no tin in it, but there is plenty of aluminum. That's why
> the box reads "aluminum foil" on the outside. Do much shopping?
>
> > Surrounding something with copper mesh does what, without
> > a path to ground?
>
> An ungrounded conductive box is an effective Faraday shield. The charge is
> on the outside and the people inside are kept safe. *Thousands of people
> have had their lives saved by ungrounded conductive airplane bodies and
> ungrounded conductive automobile bodies when lightening strikes the airplane
> or a power line falls on a stalled car.
MY Bad! I said tin foil but that's like saying Q-tip to me. Aluminum
is probably what he used but he called it tin foil too. Us old people
ya know........