Question: 8. When dolphins blow large bubbles, the bubbles always ends up having the shape of a torus, after a while. In fact the same effect

8. When dolphins blow large bubbles, the bubbles always ends up having the shape of a torus, after a while. In fact the same effect can be produced in the lab with a simple liquid droplet in liquid, so it does not require a dolphin. Discuss why hydrostatic pressure and surface tension and viscous pressure may lead to this effect and estimate approximately the size of the bubble that is required for this effect. Note that this problem is worth about equal weight to the others, so have fun but don't spend all your time on this one problem. I am looking for an answer that involves surface chemistry, not reproduction of material from the web on dolphins

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