Decades Old Physics Mystery – Feynman's Sprinkler Problem Finally Solved

<img width="128" height="52" src="https://www.sciencealert.com/images/2024/01/ReverseSprinklerGreenBlack.jpg" alt="Close up of sprinkler hub and outflowing water jets, illuminated by green lasers."/>
An enduring riddle in fluid mechanics.

https://www.sciencealert.com/decades-old-physics-mystery-feynmans-sprinkler-problem-finally-solved