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Title: Dancing droplets on to liquid surfaces

Description: Two experiments on a millimetric droplet are presented in this video. The first one consists in the progressive emptying of the droplet by the way of a partial coalescence process. The coalescence of the droplet with its bulk phase is suddenly stopped by a pinch-off caused by the capillary waves on the surface of the droplet. In the second experiment, a droplet is laid down on a vertically vibrated fluid bath. This droplet bounces on the interface instead of coalescing. Several droplets on the same bath can strongly interact, and form regular patterns.

Credits: N. Vandewalle, D. Terwagne, K. Mulleners, T. Gilet, S. Dorbolo

References:

Web Page: http://pof.aip.org/pof/gallery/2006-Dorbolo.jsp#video

Contributed By: Tausif Billah

 
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