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‘Black Holes’ In Ocean Exist, Scientists Say

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Nothing escapes the yawning chasm of a black hole – not matter, sound nor even light.

Normally confined to the reaches of space, black holes and their seemingly insatiable appetites for everything, have fascinated — and enlightened — scientists for years.

Now, they may not have to look so far to study them.

Researchers at Switzerland’s ETH Zurich and the University of Miami say black holes are among us — at least, massive eddies in the southern Atlantic Ocean bear their telltale signatures.

What a black hole is to light, an ocean eddy, scientists suggest, is to water. Dubbedmaelstroms, they’re bigger than cities, winding up billions of tonnes of ocean water so tightly, nothing escapes them.

And scientists are discovering more every day.

In a paper published earlier this month in the Journal of Fluid Mechanics, George Haller, a professor at ETH Zurich and Francisco Beron-Vera of the University of Miami claim they can track and define these engorged eddies — a feat that has, until now, proven elusive.

The ocean’s natural turbulence has thwarted previous attempts to demarcate these islands of intensity. But, by studying satellite imagery, Haller and Baron-Vera were able to identify seven black-hole types in a group of eddies, called Agulhas Rings, that regularly appear off the tip of Africa.

Their conclusion?

Maelstroms have the same mathematical properties as black holes.

Now, consider a real black hole. As explained in Science World Report, there’s a point where light being sucked into a black hole stops spiraling — bending instead, before returning to its usual position. The result is a circular orbit.

The dramatic effect of these closed light orbits, dubbed a ‘photon sphere’ by Albert Einstein, finds a parallel in these ocean vortexes, according to scientists. Essentially, the maelstrom whips up its own closed barriers, pressing whatever was sucked inside so tightly that not even a drop of these fluid particles can escape.

In fact, researchers have found eddies bearing the same bodies of water without leaking a drop for nearly a year.

”Mathematicians have been trying to understand such peculiarly coherent vortices in turbulent flows for a very long time,” George Haller explained in a statement.

That stunning sense of stability makes maelstroms something of a transportation device. Everything from the tiniest organisms to waste or oil to higher-temperature water is transported perfectly intact throughout the oceans before the maelstroms eventually lose their charge.

As the study authors note, they “create moving oases for the marine food chain or even impact climate change through their long-range transport of salinity and temperature.”

By casting light on these black holes (if you will excuse the pun), researchers could unravel the mystery of how pollution spreads throughout the environment, ETH Life reports. These maelstroms may also help scientists develops ways to at least slow down the melting of global sea ice.

More can be found on the study here.

 

Source: www.huffingtonpost.ca

 

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Dive Worldwide Announces Bite-Back as its Charity of the Year

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Over the next 12 months, specialist scuba holiday company Dive Worldwide will be supporting Bite-Back Shark & Marine Conservation with donations collected from client bookings to any one of its stunning dive destinations around the world. The independently-owned operator expects to raise £3000 for the UK charity.

Manager at Dive Worldwide, Phil North, said: “We’re especially excited to work with Bite-Back and support its intelligent, creative and results-driven campaigns to end the UK trade in shark products and prompt a change in attitudes to the ocean’s most maligned inhabitant.”

Bite-Back is running campaigns to hold the media to account on the way it reports shark news along with a brand new nationwide education programme. Last year the charity was credited for spearheading a UK ban on the import and export of shark fins.

Campaign director at Bite-Back, Graham Buckingham, said: “We’re enormously grateful to Dive Worldwide for choosing to support Bite-Back. The company’s commitment to conservation helps set it apart from other tour operators and we’re certain its clients admire and respect that policy. For us, the affiliation is huge and helps us look to the future with confidence we can deliver against key conservation programmes.”

To launch the fundraising initiative, Phil North presented Graham Buckingham with a cheque for £1,000.

Visit Dive Worldwide to discover its diverse range of international scuba adventures and visit Bite-Back to learn more about the charity’s campaigns.

MORE INFORMATION

Call Graham Buckingham on 07810 454 266 or email graham@bite-back.com

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Scubapro Free Octopus Promotion 2024

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Free Octopus with every purchase of a SCUBAPRO regulator system

Just in time for the spring season, divers can save money with the FREE OCTOPUS SPRING PROMOTION! Until July 31st SCUBAPRO offers an Octopus for free
with every purchase of a regulator system!

Get a free S270 OCTOPUS with purchase of these combinations:

MK25 EVO or MK19 EVO with A700

MK25 EVO or MK19 EVO with S620Ti

MK25 EVO or MK19 EVO with D420

MK25 EVO Din mit S620Ti-X

Get a free R105 OCTOPUS with purchase of the following combinations:

MK25 EVO or MK19 EVO with G260

MK25 EVO or MK17 EVO with S600

SCUBAPRO offers a 30-year first owner warranty on all regulators, with a revision period of two years or 100 dives. All SCUBAPRO regulators are of course certified according to the new European test standard EN250-2014.

Available at participating SCUBAPRO dealers. Promotion may not be available in all regions. Find an authorized SCUBAPRO Dealer at scubapro.com.

More information available on www.scubapro.com.

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