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Published on 12 Feb 2010 | over 7 years ago

Extraordinary and beautiful examples of toroidal vortices produced by dolphins, beluga whales, humpback whales, volcanoes, hydrogen/atomic bombs, and Man.

A toroidal vortex, also called a vortex ring, is a region of rotating fluid moving through the same or different fluid where the flow pattern takes on a toroidal (doughnut) shape. The movement of the fluid is about the poloidal or circular axis of the doughnut, in a twisting vortex motion. Examples of this phenomenon are a smoke ring or a microburst. Vortex rings were first mathematically analysed by the German physicist Hermann von Helmholtz, in his paper of 1867 On Integrals of the Hydrodynamical Equations which Express Vortex-motion Smoke rings have probably been observed since antiquity since they can easily be blown from the mouth.

***Toroidal animation that appears at the beginning and end (and the 'fibration' animation at 2:55) were created by Paul Nylander (bugman123.com/)

***The 17 second clip of the humpback whale bubble rings shown from 1:56 to 2:13 is from danthewhaleman (The Whale Video Company).***


Music: "Beautiful Being" by Eastern Sun

Dolphin footage originally uploaded by:

Etna smoke rings originally uploaded by:

And check this video out:
"Five men at atomic ground zero" (and directly witness atomic toroidal vortex)

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