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blowing air ring bubbles underwater

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Published on Mar 20, 2012

A shorter version of our guide blowing air bubble "smoke rings" for people to see. We used Seatrek Diving Helmets to explore the ocean floor about 30 ft underwater. We were part of the Carnival Legend Cruise the week of March 11-18th. If you were on our excursion you may download these films for your own use. Please write to us at couchpotatotheatre@gmail.com if you need us to send you any photos. It is also possible for me to pull photos from the actual video, it's not a big deal to do that. Hope to hear from some of you, and I want to thank all the cool Ohio Kids who work at the Seatrek site, you guys did great.
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 poloidally 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 blowing air out of their mouth in a particular manner. Long bubble rings also can form spontaneously in turbulent water such as in heavy surf. Bubble rings and smoke rings are both forms of vortex rings, and are sometimes studied in the field of fluid dynamics. Dolphins and humpback whales have also been seen to create bubble rings. Dolphins sometimes create bubble rings on purpose, seemingly for amusement.

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