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Vibrant colours mark this slowly draining cleaning soap movie. The movie sits barely off-horizontal, so circulation shifts over time from the highest of the body to the underside. The fluid can also be evaporating. All of the quicker shifts are attributable to ambient air currents from the room. The colours of the movie are straight associated to the native thickness; because the movie thins and evaporates, the brilliant colours shift to darker ones. Finally, that black area on the high will develop and the movie will break up. (Video credit score: B. Sandnes/Complicated Stream Lab)

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