Home > Appreciation, Resources > Demonstration of Stokes Flow

Demonstration of Stokes Flow

This is a mind-blowing demonstration of viscosity and Stokes flow from a physics professor at the University of New Mexico:


If you think it’s ludicrous to suggest that you can un-mix a liquid, then watch the entirety of this 2-minute video!

Click here to see more in Resources.


  1. Juejun Xiao
    June 29, 2011 at 4:56 pm

    At first i thought after 5 rotations, they just rewind the video, but upon close inspection, I am shame to doubt them. That white fluid is cool, wondering if 5 rotations is the limit for not destroy the original shape too much

  2. June 30, 2011 at 8:27 am

    You can definitely see a slight difference in the initial and final states of the liquid, so it’s not just a video-editing trick.

    I never would have believed that you could un-mix liquids like this. Truly amazing.

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