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Title: Viscous drop hitting a shallow layer of low-viscosity liquid

Description: A drop of glycerin falls 2.5 meters and impacts a shallow layer of ethanol on a glass plate. Initially a "bowl" of glycerin rises which then breaks up in a beautiful grid pattern due to the marangoni instability of the bowl surface. Filmed at 2900 fps.

Filmed at the Physics Department at the Technical University of Denmark (DTU).

Credits: Anders Andersen and Teis Schnipper

References: Thoroddsen et. al (2006) "Crown breakup by Marangoni instability," J. Fluid Mech. vol. 557, p.63-72.

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Contributed By: Teis Schnipper

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