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Draining a Bottle

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When a bottle is emptied, what do you see?

The first bubble in a draining bottle gets punctured by a jet created when the bubble pinches off.

Increasing the viscosity causes a similar process, but with some differences in bubble and jet structure.

←Twisted Fibers

Walking in the Wake→

More posts

“Frozen Waves”
April 24, 2026
Viscoelastic Vortex Street
April 23, 2026
Understanding Fish and Turbines
April 22, 2026
A Fungus That Freezes Water
April 21, 2026

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Celebrating the physics of all that flows

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