Amazing experiment from the Fluid Mechanics Group at the National University of Singapore. Also worth noting is an observation by the researchers themselves: “Note the formation of small rings from the cross-linking of the wavy vortex filaments of the larger rings.”
Writer, editor, and founder of FEELguide. I have written over 5,000 articles covering many topics including: travel, design, movies, music, politics, psychology, neuroscience, business, religion and spirituality, philosophy, pop culture, the universe, and so much more. I also work as an illustrator and set designer in the movie industry, and you can see all of my drawings at http://www.unifiedfeel.com.
