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A bubble ring, or toroidal bubble, is an underwater vortex ring 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 on to a person's arm.
Smokers may blow smoke rings from the mouth, intentionally or accidentally. Smoke rings may also be formed by sudden bursts of fire (such as lighting and immediately putting out a cigarette lighter ), by shaking a smoke source (such as an incense stick ) up and down, by firing certain types of artillery , or by the use of special devices, such ...
The Brian Jordan plastic "airzooka" Smoke ring produced by a home-made vortex ring toy. An air vortex cannon is a toy that releases doughnut-shaped air vortices — similar to smoke rings but larger, stronger and invisible. The vortices are able to ruffle hair, disturb papers or blow out candles after travelling several metres.
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Arya began playing in the bubble ring in the summer of 2005. In May 2007, the three beluga whales, Nascha (female) and Kailya ( male ), who are currently living together, planned to bubble ring at the same time, and as a result of repeated training, they have been available for public viewing since July 2007 and have been widely introduced ...
A diver off the coast of the Spanish island of Menorca created an intense bubble ring sending a jellyfish on a wild ride Mesmerizing footage shows jellyfish spinning after getting caught in bubble ...
New applications are in inkjet systems where gas in the ink forms bubbles that degrade print quality, a degassing unit is placed prior to the print head to remove gas and prevent the buildup of bubbles keeping good jetting and print quality. The above three methods are used to remove all dissolved gases. Below are methods for more selective ...