Date: Fri, 18 Feb 2011 13:14:45

Author: Bennett

Subject: Re: Tin Foil Capacitor

Post:

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I'm not sure mylar balloons expand as nicely as rubber ones do.


On Fri, Feb 18, 2011 at 12:39 PM, Dan Bernoulli wrote:

> Will be interesting to see if static charge is added or removed due to the
> air flow. Static buildup on gas cans due to fluid flow is a (fortunately not
> so common) cause of fires when filling ungrounded gas cans. I suspect you my
> get more electrons than you started with, then perhaps not. Darn those pesky
> electrons! They just don't always do what you want them to do. I'm sitting
> on the edge of my seat waiting to hear if the mylar balloon works or not.
>
> Dan Beeker
>
> > Date: Fri, 18 Feb 2011 09:46:11 -0500
> > From: wonnell@pha.jhu.edu
> > To: tap-l@lists.ncsu.edu
> > CC: wonnell@pha.jhu.edu
> > Subject: Re: [tap-l] Tin Foil Capacitor
> >
> >
> > Cliff,
> >
> > That sounds like a very interesting idea!
> >
> > Steve
> >
> >
> > On Fri, 18 Feb 2011, Cliff Bettis wrote:
> >
> > > Date: Fri, 18 Feb 2011 08:20:46 -0600
> > > From: Cliff Bettis
> > > Reply-To: tap-l@lists.ncsu.edu
> > > To: tap-l@lists.ncsu.edu
> > > Subject: Re: [tap-l] Tin Foil Capacitor
> > >
> > > Dale,
> > >
> > > Maybe an easier way to do this would be with an aluminized mylar
> balloon.
> > > Have an air line connected to it while it rests on an electroscope;
> charge
> > > it up; then inflate it. As it inflates the electroscope deflection
> should go
> > > down. Upon deflation, the electroscope should return to its original
> > > deflection (this presumes no charge leaks away while inflating or
> deflating
> > > the balloon.)
> > >
> > > Cliff
> > >
> > > -----Original Message-----
> > > From: tap-l-owner@lists.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu]
> On
> > > Behalf Of Dale E. Stille
> > > Sent: Thursday, February 17, 2011 3:25 PM
> > > To: tap-l@lists.ncsu.edu
> > > Subject: [tap-l] Tin Foil Capacitor
> > >
> > > Tappers,
> > >
> > > Anybody do the "Tin Foil Capacitor" demo by Frank Noschese that was
> > > mentioned on page 621 of the Dec. 2010 TPT. Basically you have a roll
> > > of tin foil connected to a electroscope. When you charge the
> > > electroscope and then unroll the tin foil the voltage goes down, and
> > > when you roll it back up the voltage returns to the original value.
> > > My problem when I try to set this up is the voltage leaks off this at
> > > about 1000 V. per minute which make it unusable for me. I have narrowed
> > > it down to the fact that the voltage is leaking directly off the tin
> > > foil. I imagine there is some trick to making this work like the video
> > > that went along with the article but I ain't catching it.
> > > Can somebody clue me in??
> > >
> > > Thanks,
> > > Dale
> > >
>



--
Clarence Bennett
Oakland University
Dept. of Physics, (retired)
111 Hannah
Rochester MI 48309
248 370 3418

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I'm not sure mylar balloons expand as nicely as rubber ones do.=
On Fri, Feb 18, 2011 at 12:39 PM, Dan Bernou=
lli rnoulli@hotmail.com> wrote:





Will be interesting to see if static charge is added or removed due to the =
air flow. Static buildup on gas cans due to fluid flow is a (fortunately no=
t so common) cause of fires when filling ungrounded gas cans. I suspect you=
my get more electrons than you started with, then perhaps not. Darn those =
pesky electrons! They just don't always do what you want them to do. I&=
#39;m sitting on the edge of my seat waiting to hear if the mylar balloon w=
orks or not.
Dan Beeker> Date: Fri, 18 Feb 2011 09:46:11 -0500> Fr=
om: wonnell@pha.jh=
u.edu> To: tap-l@lists.ncsu.edu
> CC: wonnell@p=
ha.jhu.edu> Subject: Re: [tap-l] Tin Foil Capacitor> =
> > Cliff,> > That sounds like a very interesting i=
dea!
> > Steve> > > On Fri, 18 Feb 2011, Cliff Be=
ttis wrote:> > > Date: Fri, 18 Feb 2011 08:20:46 -0600=
> > From: Cliff Bettis
> > Reply-To: tap-l@lists.ncsu.edu> > To: tap-l@lists.ncsu.edu> > Subject: =
Re: [tap-l] Tin Foil Capacitor
> >> > Dale,> >> > Maybe an easier way =
to do this would be with an aluminized mylar balloon.> > Have an =
air line connected to it while it rests on an electroscope; charge> =
> it up; then inflate it. As it inflates the electroscope deflection sho=
uld go
> > down. Upon deflation, the electroscope should return to its origi=
nal> > deflection (this presumes no charge leaks away while infla=
ting or deflating> > the balloon.)> >> > Clif=
f
> >> > -----Original Message-----> > From: tap-l-owner@lists=
.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu] On
> > Behalf Of Dale E. Stille> > Sent: Thursday, February 17=
, 2011 3:25 PM> > To: tap-l@lists.ncsu.edu> > Subject: [tap-l] Tin F=
oil Capacitor
> >> > Tappers,> >> > Anybody do the &q=
uot;Tin Foil Capacitor" demo by Frank Noschese that was> > m=
entioned on page 621 of the Dec. 2010 TPT. Basically you have a roll
> > of tin foil connected to a electroscope. When you charge the=
> > electroscope and then unroll the tin foil the voltage goes down, =
and> > when you roll it back up the voltage returns to the origin=
al value.
> > My problem when I try to set this up is the voltage leaks off thi=
s at> > about 1000 V. per minute which make it unusable for me. =
I have narrowed> > it down to the fact that the voltage is leakin=
g directly off the tin
> > foil. I imagine there is some trick to making this work like the=
video> > that went along with the article but I ain't catchi=
ng it.> > Can somebody clue me in??> >> > Tha=
nks,
> > Dale> >
-- Clarence BennettOak=
land University Dept. of Physics,=A0 (retired)111 HannahRochest=
er MI 48309248 370 3418

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From tap-l-owner@lists.ncsu.edu Fri Feb 18 13:23:34 2011

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