Topic: bubble rings

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Make an underwater vortex ring generator

Watch YouTube user Xraise Cornell create a homemade horizontal vortex ring generator. When a small burst of air is released into a toroidal or poloidal vortex — essentially a spinning donut of water — it s...

A diver makes underwater vortex rings that can knock over rocks

And here I thought this was just an animated gif, but no, via Daily Picks & Flicks, there’s a video of a diver making a bubble ring or vortex ring, above. A vortex ring is the phenomenon where a quantity...

Dolphins blowing bubble rings

Cetaceans, , blow bubble rings, fast-spinning rings of air that they appear to play with. We happened upon this video after watching a suggestion about toroidal vortices by @dulemba.  ...