Bubble ring

Bubble ring

A bubble ring is an underwater ring vortex where an air bubble occupies the core of the vortex, forming a ring shape. The ring of air as well as the nearby water spins toroidally as it travels through the water, much like a flexible bracelet might spin when it is rolled off a person's arm. Some scuba divers can create bubble rings by exhaling air, and whales have also been seen to create bubble rings. Dolphins sometimes create bubble rings on purpose, seemingly for amusement.

ee also

* Smoke ring
* Vortex ring
* Vortex ring toys

External links

* [http://earthtrust.org/delringgallery.html Dolphin bubble rings]
* [http://www.metacafe.com/watch/1041454/dolphin_play_bubble_rings/ Dolphin bubble rings (video)]

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