Date: Thu, 3 Mar 2005 08:54:52 -0500 (EST)

Author: Steve Wonnell

Subject: Re: dielectric Oil

Post:


Zig, possibly a great idea! I'll give it a try.
-- Steve


On Wed, 2 Mar 2005, Zigmund J. Peacock wrote:

> Date: Wed, 02 Mar 2005 14:08:09 -0700
> From: Zigmund J. Peacock
> Reply-To: tap-l@listproc.appstate.edu
> To: tap-l@listproc.appstate.edu
> Subject: Re: dielectric Oil
>
> 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
>
>


************************************************************************
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
************************************************************************
From sievert@physics.niu.edu Thu Mar 3 09:28:14 2005

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