Under the right conditions, a bursting bubble on a liquid surface does not simply vanish, but creates a perfect ring of tiny 'daughter bubbles'.
This occurs as the ruptured bubble retracts into the liquid, forming a doughnut shape of trapped air."
Thursday, June 10, 2010
BBC News - Physicists burst bubble mystery
Under the right conditions, a bursting bubble on a liquid surface does not simply vanish, but creates a perfect ring of tiny 'daughter bubbles'.
This occurs as the ruptured bubble retracts into the liquid, forming a doughnut shape of trapped air."
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