ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************

In the case of Pittsburgh's original Buhl Planetarium
and Institute of Popular Science [1939-1991], our one
million-volt Oudin-type Telsa Coil

<
http://buhlplanetarium2.tripod.com/Buhlexhibits.htm#teslacoil
>

is so large that we used the building's PA system to
explain the instrument and demonstration, just prior
to a Tesla Coil demonstration [adding that Nikola
Telsa, who perfected the AC electrical transmission
system, worked in Pittsburgh for George Westinghouse
for about a year].

For Van de Graaff demonstrations,

< http://buhlplanetarium3.tripod.com/VandeGraaf1.JPG >

the Floor Aide would simply talk loud enough to be
heard while the instrument was in use. However, for
much of the time that the Floor Aide was talking, the
machine was off. Of course this worked better in floor
demonstrations, when people could encircle the
machine, and hence be closer to the speaker, than in
demonstrations in our Little Science Theater. However,
when we did a theater demonstration, the theater had
its own PA system, which was sometimes used.

gaw




--- "Kimberly Kenney, Curator"
<[log in to unmask]> wrote:
Date: Fri, 19 Jan 2007 09:27:52 -0800 
From:  "Kimberly Kenney, Curator"
<[log in to unmask]>
Subject: electric shows and sound systems 
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.
>
*****************************************************************************
> 
> 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

gaw

Glenn A. Walsh
Electronic Mail - < [log in to unmask] >
NEWS - Astronomy, Space, Science:
< http://buhlplanetarium.tripod.com/#news >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh: 
  < http://www.planetarium.cc > 
* Adler Planetarium, Chicago: 
  < http://adlerplanetarium.tripod.com >
* Astronomer & Optician John A. Brashear: 
  < http://johnbrashear.tripod.com > 
* Andrew Carnegie & Carnegie Libraries: 
  < http://www.andrewcarnegie.cc > 
* Duquesne Incline cable-car railway, Pittsburgh: 
  < http://www.incline.cc >


 
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