Dolphins, whales, humans and volcanoes can all produce toroidal vortices. What is a toroidal vortex (aka vortex ring)?
It’s a region of rotating fluid that moves through the same or different fluid. As it moves it takes on the shape of a ring. One example of this is a smoke ring. Another would be a hydrogen bomb blast. But as this video reveals, nature produces the most extraordinary and beautiful examples.
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