Fun with Vortex Rings in the Pool Create half-ring vortices in a pool by sliding a plate through water and adding food coloring to the ends. Facebook Prev Article Next Article Experiments Checkout these cool gadgets... Related Posts Neat Little Demonstration of Relative Motion WeedEater Battle in Slow Motion Copper’s Surprising Reaction to Strong Magnets Footage Of Russian Experiment Shows Dog ‘Breathing’ Underwater Watch As This Mysterious Goo Is Sliced, Shot and Pummlled to Test Its Properties! Large Hadron Collider Smashes Lead Ions at 1045 Trillion Electron-Volts, Sets New Record