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Hi all--

We have a unique wind tunnel exhibit where you can actually SEE the the 
airflow as tiny 1/8" bubbles flow in a  around a wing tip or model space 
shuttle, around model buildings, study how corn is pollinated, etc. with 
some good lights in the chamber.   

Visitors are given an assortment of landscape structures (fake trees, 
different perforated walls, hedges, etc.) they can put into the exhibit, 
with a challenge to reduce the wind at an outdoor model arena .

 The bubbles are filled with helium, which makes them neutrally buoyant 
so they follow the wind flow.  Generating the bubbles takes a carefully 
machined device, and special Bubble Solution.  The bubble-generating 
equipment was developed by

www.sageaction.com

You can see our exhibit in action about 2/3 of the way through a 
quicktime movie about our traveling exhibition called "Tech City" --look 
for "Catch the Wind" with a kite graphic for the title:

http://www.sciencenter.org/exhibits/d/techcity.mov
http://www.sciencenter.org/exhibits/exhibitionsforrent.asp

Kathy Krafft
Exhibit Projects Director
Sciencenter
Ithaca, NY
607-272-0600 ext 25

>>***********************************************************************
>>
>>Hello,
>>
>>I am interested to know how many of you have wind tunnel exhibits and  
>>if so, what do you have visitors do and what age groups are they  
>>targeted to?
>>
>>Thanks,
>>Anna
>>__________________________________
>>Anna Grace
>>Exhibit Coordinator
>>
>>Explorit Science Center
>>
>>    
>>

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