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When the conditions are right, a solid sphere can pass through a soap bubble without rupturing the soap film. As the sphere passes through the soap film, a pinch-off occurs and the soap film reseals itself. Predicting whether or not a soap film will rupture is dependent upon the speed and size of the solid sphere passing through it, as well as the thickness of the soap film. The thickness of the soap film can be gained by analyzing the color bands visible on the surface of the bubble.

Read the paper here.