Date: Wed, 2 Mar 2005 21:48:39 -0500 (EST)

Author: "Jason St. John"

Subject: Re: dielectric Oil

Post:



I put fluourescein in EVERYTHING! (try it in a martini to freak
out your friends. try it in Mountain Dew, where it doesn't seem to do
anything.)


Seriously,

-jmsj


On 2005-03-02.14:08 owner-tap-l@listproc.appstate.edu sent:

Steve and Karl, have either of you contemplated dying the mineral oil/glycerin
with flourescien to make it more visible? Zig

Steve Wonnell wrote:

> Hi Karl,
>
> We use mineral oil for the force on a dielectric demo, after
> seeing this at one of your AAPT workshops. Seems to work fine.
>
> -- Steve
>
>
> On Tue, 1 Mar 2005 trappe@physics.utexas.edu wrote:
>
>
> > Date: Tue, 1 Mar 2005 09:45:57 -0600
> > From: trappe@physics.utexas.edu
> > Reply-To: tap-l@listproc.appstate.edu
> > To: tap-l@listproc.appstate.edu
> > Subject: Re: dielectric Oil
> >
> > Jerry:I seem to recall discovering that pharmaceutical grade (no water in
> > it)
> > glycerin works very well in the parallel plate capacitor "lifting" the
> > dielectric out of solution. Dheck out the dielectric constant in a CRC
> > handbook to make sure I am not remembering wrong.
> >
> > We were using benzend and carbon disulfide...carcinogens at best...and being
> > left with whopper headaches until i put my foot down. Of course, it was
> > such a
> > neat demo that I had to search for a not-toxic solution. If you don't do
> > that
> > one,you ought to try it. It does take a fairly high voltage/current power
> > supply to get enough qV to make the lifting of the dielectric visible. Karl
> >
> > Quoting Jerry Hester :
> >
> >
> > > Taplers,
> > > Do any of you know a good source for dielectric oil?
> > > As I recall, the last I obtained was "Exxon N-64". I can't seem to find
> > > it
> > > through Google.
> > > I may well misremeber the name or manufacturer.
> > >
> > > Also:
> > > Do any of you have luck searching the Tap-L archives?
> > > I go to http://listproc.appstate.edu:8000/guest/archives/tap-l/
> > > Enter common keywords such as "Wimshurst" and never get a hit.
> > > Is there something I am missing in regard to how the archives search
> > > operates?
> > >
> > > Thanks,
> > >
> > >
> >
>
>
> ************************************************************************
> Steven K. Wonnell
> Physics and Astronomy Department E-Mail: wonnell@pha.jhu.edu
> Johns Hopkins University Phone: (410) 516-4696, 516-5468
> 3400 N. Charles Street Fax: (410) 516-7239
> Baltimore, MD 21218-2686 Office: 478 Bloomberg
> ************************************************************************
>
>

--
Zigmund J. Peacock WWW.physics.utah.edu/people/staff/peacock.html
University of Utah/Physics peacock@physics.utah.edu
115 SOUTH 1400 EAST #201 Tel 801 581 6602 SALT LAKE
CITY UT 84112-0830 Fax 801 581 4801

"We sleep safely in our beds because rough men stand ready in
the night to do violence to those who would do us harm"
-- George Orwell

"All that is necessary for the triumph of evil is that good
men do nothing!"
-- Edmund Burke
From chuck.patten@verizon.net Wed Mar 2 21:57:24 2005

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