Aces High Bulletin Board
General Forums => The O' Club => Topic started by: SPKmes on September 14, 2008, 05:18:27 PM
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Dolphin Rings
Things that make you go, hmm!
The attached video is of dolphins playing with silver colored rings
which they have the ability to make under water to play with. It
isn't known how they learn this, or if it's an inbred ability.
As if by magic the dolphin does a quick flip of its head and a silver
ring appears in front of its pointed beak. The ring is a
solid, donut shaped bubble about 2-ft across, yet it doesn't rise to the
surface of the water! It stands upright in the water like a
magic doorway to an unseen dimension. The dolphin then pulls a small
silver donut from the larger one. Looking at the twisting ring for
one last time a bite is taken from it, causing the small ring to collapse
into a thousands of tiny bubbles which head upward towards
the water's surface. After a few moments the dolphin creates another
ring to play with. There also seems to be a separate
mechanism for producing small rings, which a dolphin can accomplish by a
quick flip of its head.
An explanation of how dolphins make these silver rings is that they are
'air-core vortex rings'. Invisible, spinning vortices in the
water are generated from the tip of a dolphin's dorsal fin when it is
moving rapidly and turning. When dolphins break the line, the
ends are drawn together into a closed ring. The higher velocity fluid
around the core of the vortex is at a lower pressure than the fluid circulating farther away. Air is injected into the rings via
bubbles released from the dolphin's blowhole. The energy of the
water vortex is enough to keep the bubbles from rising for a reasonably
few seconds of play time.
(http://i249.photobucket.com/albums/gg234/spkmes/th_DolphinRings.jpg) (http://s249.photobucket.com/albums/gg234/spkmes/?action=view¤t=DolphinRings.flv)
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id guess the dolphin also puts some type of mucus into the fluid as it expells the air from its blowhole before making it spin. buoyancy alone should make the bubbles go up but if there is a 'wall' of heavier material (mucosa) encompassing the bubble it would be enough to keep it static until it dissolves into the water.
just my guess.
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That wonderfully illustrates the wonders of Sweet Clean Mother Nature, but the websites I'm used to would have a chick in it, and the Dolphins would be having even more fun :devil :devil
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id guess the dolphin also puts some type of mucus into the fluid as it expells the air from its blowhole before making it spin. buoyancy alone should make the bubbles go up but if there is a 'wall' of heavier material (mucosa) encompassing the bubble it would be enough to keep it static until it dissolves into the water.
just my guess.
I don't think I'd ever understand the way fluid dynamics work. My mind was blown when I learned about cavitation.
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my theory is they got a lil box inside there heads that makes circles........
lol
im gonna go with a of "spin" idea of my own...
its like makeing smoke rings (if your a smokers or experimenting)
but then there is some way there use there sonar abilitys to steer or effect the ring as it moves, but yet you see them till there head/blow hole to give it lil puffs at times.
if you watch you see some steal/take the ring made by others away and guide it around.
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:rofl They are all SQUEAKERS! (rimshot) :rofl I just sharted. :uhoh
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These are not "rings" these are gunsights. Beware!~
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It's an interdimensional gateway! :O :devil
(http://www.topshelfbooks.com/shop_image/product/003676.jpg)