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

> I also believe that a number of corrugated pool hoses work for this  
> as well (not as cheap as the "cheap plastic crap toys") but readily  
> available.  One of the hardware stores used to sell (and may still  
> sell) a version of cheap pump hose in bulk this way (wouldn't use it  
> for pumps though - it leaked like crazy, but it was nice for sound).
>
> -William
>
> On Aug 20, 2009, at 10:40 AM, David Savory wrote:
>
>> ISEN-ASTC-L is a service of the Association of Science-Technology  
>> Centers
>> Incorporated, a worldwide network of science museums and related  
>> institutions.
>> *****************************************************************************
>>
>> Corruga tubes are plastic tubes with ridges on them. You hold one  
>> end and whirl the other. Air rushes over the moving end and  
>> develops a low pressure zone there. Air moves through the tube from  
>> the stationary end and vibrates as it hits all the ridges. This  
>> creates a strange noise that's good for calling aliens.
>>
>> The tubes are available wherever cheap plastic crap toys may be  
>> found. Don't go to stevespangler.com
>>
>> David Savory
>> Community Extensions Program Developer and Exhibit Curator
>> Science World British Columbia
>> TELUS World of Science
>> 1455 Quebec Street
>> Vancouver, BC
>> Canada V6A 3Z7
>>
>> t: 604.443.7561
>> f: 604.443.7434
>> e: [log in to unmask]
>> w: scienceworld.ca
>>

***********************************************************************
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]