Let me make you aware of the fact that stainless steel does come in many
different grades. 409SS being one of the most rustable and most magnetic.
316SS being one of the least rustable and least magnetic. However all
stainless steels do have a iron base as their binder for the other
elements.
This being considered all stainless grades will tarnish at some time due
to
oxidation of the base iron content. The base iron content is magnetic.
The word "stainless steel" is just as was derived from the beginning....it
stains less than steel. Thus the word "stainless". I did not make this
up...it is the steel making industry known fact.
Bud Mohrman
----- Original Message -----
From: <mddeming@xxxxxxx>
To: <tesla@xxxxxxxxxx>; <binny@xxxxxxxxxxxx>
Sent: Wednesday, January 20, 2010 5:27 PM
Subject: Re: [TCML] Odd side effect--from a coil?
Since the nature of ball lightning has never been verified by any
reputable
source I suppose that one can ascribe it to anything and anything to it.
Matt D.
-----Original Message-----
From: Binny <binny@xxxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Wed, Jan 20, 2010 5:35 pm
Subject: Re: [TCML] Odd side effect--from a coil?
The hinges explain it then, IMHO as stainless conducts a magnetic field
well
but will not retain it well. Anyway just my 2 cents worth oh and the St.
Elmo's fire that old timer was describing was really some form of ball
lightning as he described it. Best wishes to all and may still more
mysteries unravel before our eyes.
----- Original Message ----- From: <mrapol@xxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Wednesday, January 20, 2010 7:22 AM
Subject: Re: [TCML] Odd side effect--from a coil?
----- Original Message ----- > From: <davep@xxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Wednesday, January 20, 2010 9:08 AM
Subject: Re: [TCML] Odd side effect--from a coil?
What amazes me is that stainless steel is non magnetic unless it is of
the poorest quality that would rust, so that feat would take an
enormous
magnetic field.
Varies with the 'stainless' Many sorts thereof.
Let me describe the glasses more fully. The frame and limbs are stainless
steel--I don't know what grade--coated with a tinted plastic film. The >
hinges are bare metal, and it is the hinges that are most strongly >
magnetic.
I have heard tales of strange phenomena around coils tho. Like some
of the old timers stories of seeing St. Elmo's fire coming out of the
walls.
I fail to see anything strange about that. Corona is standard in
high fields. Reported (pre Tesla) by Lodge...
I don't know hardly anything about magnets but I was under the
impression
that you need a huge magnetic field to magnetize things.
Varies with the 'thing'.
I wear wire rim glasses. About 18 months ago I got new frames made of
stainless steel.
Various grades of stainless.
They're made by Safilo (if that matters) and pretty lightweight. In cross
section they are half round tubes. The hinges are the really magnetic >
part, and they are solid metal.
After several months of experimenting with my modest tabletop coils,
I have found my glasses frames are magnetized.
It would be interesting to know what other, if any experiments?
Were the glasses nonmagnetic at start?
They were not magnetic at first. I frequently take them off while sitting
at my desk, which is cluttered with pins, paperclips, etc. It's only been
in the last 6-8 months that I have noticed objects sticking to them.
Paul
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