This is the best summary I could come up with:
Its visually striking patterns arise from the complex hydrodynamics of paint interacting with water, inspiring a winning video entry in this year's Gallery of Fluid Motion.
The American Physical Society's Division of Fluid Dynamics sponsors the gallery each year as part of its annual meeting, featuring videos and posters submitted by scientists from all over the world.
The three videos featured here are the winners of the Milton Van Dyke Awards, which also included three winning posters.
Harvard University graduate student Yue Sun was fascinated by the process and the resulting patterns of making marbled paper, particularly the randomness.
Adding surfactants makes the colors float so that they can be stirred—perhaps with a very fine human hair—or fanned out by blowing on the circles of ink or paint with a straw.
(Body marbling relies on a similar process, except the floating patterns are transferred onto a person's skin.)
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