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Create half-ring vortices in a pool by sliding a plate through water and adding food coloring to the ends. Music by Michael R Miller - https://soundcl (more)

Create half-ring vortices in a pool by sliding a plate through water and adding food coloring to the ends.
Music by Michael R Miller - https://soundcloud.com/michaelrmmiller
Original vortex video here: https://www.youtube.com/watch?v=pnbJEg9r1o8
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