Dyed milk pulls away after a drop of acetone is added. The acetone creates a gradient in the surface tension, which causes mass flow due to the Marangoni effect. See a video of the effect (or try it yourself at home!) here.
Marangoni Effect
Dyed milk pulls away after a drop of acetone is added. The acetone creates a gradient in the surface tension, which causes mass flow due to the Marangoni effect. See a video of the effect (or try it yourself at home!) here.
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