ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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I emailed the folks at the Museum of Science in Boston with this exact
same question a while ago, and they'll be able to give you a more
thorough answer than I can...but from what I remember, you need to run
all cables in a metal trough to shield them from interference, and you
need to use balanced cables to eliminate any interference that makes it
into the troughs. All the sound equipment needs to be shielded with
metal as well.
None of those options were practical for a van de graaff demo we do, so
we just scaled back in the size of the audience we were aiming for, and
did it without any sound system. Let us know if you find anything else
out!
Phil
Museum of Science and Industry, Chicago
-----Original Message-----
From: Informal Science Education Network
[mailto:[log in to unmask]] On Behalf Of Kimberly Kenney,
Curator
Sent: Friday, January 19, 2007 11:28 AM
To: [log in to unmask]
Subject: electric shows and sound systems
ISEN-ASTC-L is a service of the Association of Science-Technology
Centers
Incorporated, a worldwide network of science museums and related
institutions.
************************************************************************
*****
At our museum, we do an electric show with a tesla
coil and vandegraf. Our docents have a hard time
speaking loud enough for our visitors and students to
hear them.
Is there ANY sound system that is safe to use with
this equipment?
We were wondering what other museums do to project
voices during the show.
Thanks!
Kim Kenney
Curator
Kimberly A. Kenney, Curator
Wm. McKinley Presidential Library & Museum
800 McKinley Monument Dr. NW
Canton OH 44708 * 330-455-7043
* McKINLEY DAY: Saturday January 27, HALF PRICE ADMISSION!!
* 100 HOURS CELEBRATION: To celebrate the 100th anniversary of the
Monument, the Museum will be open 100 consecutive hours from June 27 -
July 1, 2007!
"Let us ever remember that our interests are in concord, not conflict;
and that our real eminence rests in the victories of peace, not those of
war." -- 25th United States President William McKinley
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