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

All three Tennis Ball Launchers - the Witte, Exploreum  and the one  
at McWane are designed and built by Hands On! Kathy GH
__________________
Kathy Gustafson-Hilton
Hands On! Inc.
689 Central Avenue, #200    St. Petersburg, FL 33701
Tel: (727) 824-8988, x15        Fax: (727) 824-8572
Email:  [log in to unmask]        Web: http://www.hofl.org

Hands On! Inc.
      Our mission:  making people enthusiasts.

On May 2, 2008, at 3:18 PM, Kathy Krafft 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 all--
>
> Somewhere, long ago, one of our wonderful volunteers saw a neat  
> exhibit where a small diameter pipe is connected near the bottom of  
> a large diameter pipe.  A bowling ball drops down the large pipe,  
> compressing the air inside it;  this causes the tennis ball resting  
> on the smaller diameter tube to shoot way up in the air.  He'd like  
> to build one for our outdoor Science Park area.
>
> Our early experiments have not been very successful.  Any hints or  
> suggestions as to someone who has done this successfully would be  
> most appreciated!
>
> Kathy Krafft
> Exhibit Projects Director
> Sciencenter
> Ithaca, NY
> 607-272-0600 x25
>
> ********************************************************************** 
> *
> 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 from L- 
> Soft. To learn more, visit
> http://www.lsoft.com/LISTSERV-powered.html.
>
> To remove your e-mail address from the ISEN-ASTC-L list, send the
> message  SIGNOFF ISEN-ASTC-L in the BODY of a message to
> [log in to unmask]
>
>




***********************************************************************
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 from L-Soft. To learn more, visit
http://www.lsoft.com/LISTSERV-powered.html.

To remove your e-mail address from the ISEN-ASTC-L list, send the
message  SIGNOFF ISEN-ASTC-L in the BODY of a message to
[log in to unmask]