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Iron filings will not show the same effect - self-organization into "spikes"
in the presence of a strong magnetic field.
I'd love to know how to do this as well.
Dave Smith
On Tue, Oct 7, 2008 at 12:24 PM, Paul Orselli <[log in to unmask]> wrote:
> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related
> institutions.
>
> *****************************************************************************
>
> Hi Becky,
>
> Why not just substitute mineral oil and iron filings in small
> containers for a similar effect?
>
> Much cheaper and much safer materials as well.
>
> Good luck!
> --------------------------------------------------
>
> Paul Orselli, President and Chief Instigator
>
> Paul Orselli Workshop (POW!)
> 1684 Victoria Street
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>
> On Tue, Oct 7, 2008 at 12:21 PM, Becky Matthews
> <[log in to unmask]> wrote:
> > ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> > Incorporated, a worldwide network of science museums and related
> institutions.
> >
> *****************************************************************************
> >
> > Does anyone know what liquid is in the unextruded soda bottles along
> > with ferrofluid in the "ferrofluid display cells?" These are available
> > at Educational Innovations for $38.50 each. We need a number of them
> > for a new program. Smaller glass vials are available for $20 each, but
> > we do not want to use glass.
> >
> > Thanks,
> > Becky
> >
> > Becky Fox Matthews
> > Senior Educator/Special Projects Manager
> > Adventure Science Center
> > 800 Ft. Negley Blvd.
> > Nashville, TN 37203
> > voice: 615-401-5073
> >
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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
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--
David L. Smith
Da Vinci Science Center
Allentown, PA
http://www.davinci-center.org
Please consider the environment before printing this email.
Everything that needs to be said has already been said. But since no one was
listening, everything must be said again. -- Andre Gide
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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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