Guinness Draught Pouring into a Glass by Alex Meyer for Flow Visualization 2013

I chose this video of a Guinness Draught being poured into a glass as it shows turbulent flow in the fluid as it slowly transitions into laminar flow. It also does an excellent job of showing the shear/frictional forces from the glass boundary layer acting on the fluid. The entire video is simply entrancing from a visual point of view, and I appreciate the gradient from dark amber to light amber.

(Source: https://www.flowvis.org/2013/02/12/when-guinness-draught-stout-is-poured-into-a-glass-with-sloping-sides-the-bubbles-formed-by-nitrogen-and-co2-coming-out-of-solution-rush-upward-in-the-middle-of-the-glass-and-the-liquid-recircualtes/)