Just passing through … thin film interference from plastic tubing

Amazing how strong soap film is. I spent a few hours yesterday making and photographing a soap film rig where the plane was penetrated by thin flexible tubing. I wanted to see how the flow was affected by the tube passing through the film. I made a wire frame and attached some tubing in such a way that it passed through the film, and one of my friends from the workshop kindly photographed me holding it:

intrusions-from-the-side.jpg

intrusions from the side – two sections of tube pass through the film

Below is an image of the same equipment now horizontal with an interesting deformation of the soap plane (quatrefoil shape) where the tubing goes through:

accommodating-the-tubing.jpg

accommodating the tubing

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