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Hi,
We are trying to build an exhibit that allows visitors to see a shadow of
the airstream that flickers in and out of the mouth of an organ pipe.  I
have heard that this is possible using some arrangement of a strobe light,
polarizing filters and collimating lenses.  Does anybody have any tips or
resources to help us do that?
Thanks,
Cobie Howard
Exhibit Developer
Explora Science Center and Children's Museum of Albuquerque
505-224-8306


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