ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************
> Great links to the "retro" Van de Graaff
> demonstration! Does anyone know what device they place
> on top of the dome at the end of the show-- spreading the
> charge onto the audience?
Well, apparently, that instrument was used during the demo in the 1950s, but not during the 1980s and early 1990s when I worked at Buhl Planetarium.
During the 1980s and early 1990s, Buhl demonstrators would simply place one hand on top of the Van de Graaff, while using the second hand, and index finger, to spread the charge into the audience by simply pointing at the audience.
gaw
Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://friendsofthezeiss.org >
Electronic Mail - < [log in to unmask] >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
< http://buhlplanetarium.tripod.com >
* Adler Planetarium, Chicago:
< http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
< http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
< http://andrewcarnegie.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
< http://incline.pghfree.net >
* Public Transit:
< http://andrewcarnegie2.tripod.com/transit >
--- On Wed, 8/4/10, Liz Kelley <[log in to unmask]> wrote:
> From: Liz Kelley <[log in to unmask]>
> Subject: Re: Van de Graaff Generators
> To: [log in to unmask]
> Date: Wednesday, August 4, 2010, 8:50 AM
> ISEN-ASTC-L is a service of the
> Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and
> related institutions.
> *****************************************************************************
>
>
> Great links to the "retro" Van de Graaff
> demonstration! Does anyone know what device they place
> on top of the dome at the end of the show-- spreading the
> charge onto the audience?
>
> We just developed a handful of "pocket science" demos for
> our new Electricity Exhibit-- little hand-held demos
> that can be done by Explainers in the exhibit. Here
> are some of them:
>
> "energy ball" to demonstrate how a circuit works (have
> visitors form a circle, hold hands and then the two "ends"
> of the circle touch the metal strips on the energy ball, it
> lights up and plays a tune)
> Magnetic field demonstrator (contains metal filings, place
> a bar magnet on top to see magnetic field patterns-- leading
> into a discussion of the relationship between magnets and
> electricity)
> Copper tube and neodymium magnet (http://www.teachersource.com/electricityandmagnetism/eddycurrentsandmagneticfields/eddycurrenttubessuperlarge.aspx
> )
> Good luck!
>
> Liz Kelley
> Public Programs Manager
> The Franklin Institute
> Philadelphia, PA
>
> > Date: Tue, 3 Aug 2010 15:26:31 -0700
> > From: [log in to unmask]
> > Subject: Re: Van de Graaff Generators
> > To: [log in to unmask]
> >
> > ISEN-ASTC-L is a service of the Association of
> Science-Technology Centers
> > Incorporated, a worldwide network of science museums
> and related institutions.
> >
> *****************************************************************************
> >
> > > Also, if you have any suggestions on electrical
> > > demos you
> > > think would work well for a show we would love to
> hear
> > > them.
> >
> > FYI--Here are links to two scripts of classic Van de
> Graaff public demonstrations, produced by Pittsburgh's
> original Buhl Planetarium and Institute of Popular Science
> in June of 1954:
> >
> > Script 1 -
> > Page 1:
> > http://buhlplanetarium2.tripod.com/BuhlAidesbookc8p22.JPG
> > Page 2:
> > http://buhlplanetarium.tripod.com/BuhlAidesbookc8p23.JPG
> >
> > Script 2 -
> > Page 1:
> > http://buhlplanetarium.tripod.com/BuhlAidesbookc8p44.JPG
> > Page 2:
> > http://buhlplanetarium.tripod.com/BuhlAidesbookc8p45.JPG
> >
> > gaw
> >
> > Glenn A. Walsh, Project Director,
> > Friends of the Zeiss < http://friendsofthezeiss.org >
> > Electronic Mail - < [log in to unmask]
> >
> > SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
> > < http://buhlplanetarium.tripod.com/#news
> >
> > Author of History Web Sites on the Internet --
> > * Buhl Planetarium, Pittsburgh:
> > < http://buhlplanetarium.tripod.com >
> > * Adler Planetarium, Chicago:
> > < http://adlerplanetarium.tripod.com >
> > * Astronomer, Educator, Optician John A. Brashear:
> > < http://johnbrashear.tripod.com >
> > * Andrew Carnegie & Carnegie Libraries:
> > < http://andrewcarnegie.tripod.com >
> > * Duquesne Incline cable-car railway, Pittsburgh:
> > < http://incline.pghfree.net >
> > * Public Transit:
> > < http://andrewcarnegie2.tripod.com/transit
> >
> >
> >
> > --- On Tue, 8/3/10, Paul Spana <[log in to unmask]>
> wrote:
> >
> > > From: Paul Spana <[log in to unmask]>
> > > Subject: Van de Graaff Generators
> > > To: [log in to unmask]
> > > Date: Tuesday, August 3, 2010, 5:59 PM
> > > ISEN-ASTC-L is a service of the
> > > Association of Science-Technology Centers
> > > Incorporated, a worldwide network of science
> museums and
> > > related institutions.
> > >
> *****************************************************************************
> > >
> > > Dear friends,
> > >
> > > Our museum's Education Department is planning a
> > > demonstration on
> > > electricity based on the success of their
> "combustion"
> > > shows. Will
> > > someone please recommend a fabricator that
> creates large
> > > Van de Graaff
> > > generators? Also, if you have any suggestions on
> electrical
> > > demos you
> > > think would work well for a show we would love to
> hear
> > > them.
> > >
> > > Thank you, Paul
> > >
> > >
> > >
> > > Paul Spana
> > >
> > > Exhibits Manager
> > > Space Center Houston
> > > 1601 NASA Parkway
> > > Houston, Texas 77058
> > > 281.244.2124 office
> > > 281.283.7729 fax
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> ***********************************************************************
> > > For information about the Association of
> Science-Technology
> > > Centers and the Informal Science Education
> Network please
> > > visit www.astc.org.
> > >
> > > Check out the latest case studies and reviews on
> > > ExhibitFiles at www.exhibitfiles.org.
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> ***********************************************************************
> > For information about the Association of
> Science-Technology Centers and the Informal Science
> Education Network please visit www.astc.org.
> >
> > Check out the latest case studies and reviews on
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> ***********************************************************************
> For information about the Association of Science-Technology
> Centers and the Informal Science Education Network please
> visit www.astc.org.
>
> Check out the latest case studies and reviews on
> ExhibitFiles at www.exhibitfiles.org.
>
> The ISEN-ASTC-L email list is powered by LISTSERVR software
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For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.
Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.
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