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When Bubbles Don’t Die

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In a pure liquid, most bubbles break immediately. But in a Leidenfrost drop, bubbles can persist for long periods.

In a pool of silicone oil, bubbles die immediately at room temperature, but with a little heat, they survive indefinitely.

The heated bubbles have a cool cap that drains downward but are reinforced by an upward Marangoni flow.

←Backflipping Bubbles

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FYFD

Celebrating the physics of all that flows

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