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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
> >
> >
> >
> >
> >
> >
> >
> >
> > ***********************************************************************
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> >
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> ***********************************************************************
> For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.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 ExhibitFiles at www.exhibitfiles.org.
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