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  • The world ocean covers more than 70% of the Earth’s surface, contains 97% of its water,

  • and is filled to the brim with mysteries.

  • Bright red tides, sound anomalies, bizarre creatures lurking in the ocean’s depths.

  • One of these enigmas stands out among the rest: are there indeed black holes in the

  • Atlantic Ocean?

  • So check out my list.

  • 1.

  • Red Tide One day, you decide to enjoy a stroll along

  • the beach.

  • But once you come closer to the shore, you notice something shocking - the water has

  • a spine-chilling red color!

  • This unusual hue is caused by algae - microscopic marine plants - blooming or rapidly growing

  • in the ocean waters.

  • If you think that’s nothing serious, think twice.

  • During a red tide, a gallon of seawater can contain millions of algae, which is extremely

  • dangerous for birds, marine animals, and even us, people! Red algae can mess with breathing,

  • and eating fish and shellfish caught in the red tide can lead to bad food poisoning!

  • 2.

  • Milky Sea Phenomenon On a dark night, you go on an ocean boat trip.

  • Youre admiring the stars above your head when suddenly something draws your attention.

  • You see that somewhere ahead, the ocean water is glowing with unearthly white light!

  • Don't panic - youre a fortunate witness of the milky sea phenomenon.

  • The whole shining thing does look eerie but there’s nothing paranormal about it (even

  • if sometimes the glowing is so bright, and its area - so large that it’s visible from

  • space!).

  • This phenomenon mostly happens in the Indian Ocean’s waters.

  • Scientists haven't agreed yet about the source of the enigmatic glow.

  • The most popular idea, though, is that the ocean starts to gleam when countless glow-in-the-dark

  • bacteria gather in one place.

  • But what makes them arrange such massive get-togethers?

  • Still a mystery.

  • 3.

  • Green Flashes Come to see sunset or sunrise near the ocean,

  • and if youre lucky, you may notice beautiful green flashes over the horizon.

  • Why lucky?

  • Because usually, these flashes don't last longer than a couple of seconds, plus, this

  • phenomenon is quite rare on its own.

  • Youre more likely to see green flashes at sunset than at sunrise.

  • They appear when the atmosphere bends sunlight, passing through it, and separates it in different

  • colors, just like a prism splits the light into tiny rainbows.

  • Right at the moment when the sun is rising above the horizon or setting down, the green

  • light is the most visible.

  • But on very clear days, violet or blue rays can make it through the atmosphere, and youll

  • see even more unique blue flashes instead of the green ones.

  • 4.

  • Steaming Sea Frost smoke, sea smoke, steam fog - this phenomenon

  • has many names.

  • On a cold day, you can see the ocean literally smoking!

  • It has nothing to do with fire though.

  • The water starts to steam when the wind carrying cold air bumps into the warm humid air over

  • the water surface.

  • The warm air cools down almost immediately.

  • The result is the verysea smokewhich looks pretty much the same as the steam over

  • a boiling kettle or your breath on a freezing cold day.

  • Only on a way, way larger scale.

  • 5.

  • Underwater Waterfalls When asked, most people will say that the

  • tallest waterfall in the world is Angel Falls in Venezuela.

  • Indeed, this waterfall is more than 3,000 ft high, which is way higher than the world’s

  • tallest building - Burj Khalifa!

  • But the world’s biggest waterfall is actually underwater c (however confusing it may sound).

  • The Denmark Strait Cataract - that’s the name of this mind-boggling phenomenon - lies

  • beneath the Denmark Strait that separates Greenland and Denmark.

  • There, the Nordic Sea’s frigid waters clash with much warmer Irminger Sea.

  • The temperature difference makes the cold water flow underneath the warmer, creating

  • a drop of 11,500 ft, which is just three times smaller than the Challenger Deep - the deepest

  • place on Earth!

  • The Denmark Strait Cataract also transports 50,000 times more water than Niagara Falls!

  • 6.

  • The Bloop Sound For the first (and only) time, the Bloop was

  • recorded in 1997.

  • This minute-long, low-frequency sound was coming from the southern coast of Chile, and

  • it was so deafeningly loud that underwater microphones as far as 3,000 miles away could

  • hear it.

  • But the most spine-chilling thing about this noise is that no one has ever heard it again.

  • No wonder that people all over the world started to look for explanations: was it the call

  • of a megalodon, marine dino, giant squid, or some other undiscovered sea inhabitant?

  • The excitement escalated after scientists announced that the noise was 100% not human-made.

  • Sci-fi lovers were unfortunately left disappointed when the mystery was solved.

  • The enigmatic sound was created by a thunderous underwater icequake - the cracking of the

  • ice shelf breaking up from Antarctica.

  • 7.

  • Black Holes in the Ocean You might not need to fly to space if you

  • want to take a closer look at a black hole!

  • Scientists have found something very similar to black holes in the southern Atlantic Ocean!

  • A black hole has such an enormous gravitational pull that once something gets pulled in, it

  • doesn't have any chance to escape.

  • Even light can’t get out of a black hole.

  • Oceanblack holesseem to be as powerful as their space relatives.

  • But instead of catching the light, they do the same with water.

  • Ocean eddies are massive whirlpools that are spinning against the main current.

  • They usually swirl billions of tons of water, and most of them are larger than a city.

  • These whirlpools are so powerful that nothing trapped by them can escape.

  • But the scariest thing is that you might not even notice heading into one of them.

  • These things are so huge that you won't spot their boundaries until it’s too late!

  • Scientists, though, started to explore ocean vortices with the help of satellites.

  • That’s how they discovered the borders of several eddies.

  • After that, they managed to prove that mathematically, these whirlpools are the same as mysterious

  • black holes in space.

  • Massive eddies are surrounded by super-tight barriers where the fluid is moving in closed

  • loops.

  • Even water can’t get out from the inside of these loops.

  • That's why tight ocean vortices kinda play the role of ginormous containers: water inside

  • them can be totally different from the ocean surrounding an eddy!

  • And I’m not only talking about its temperature - the salt content inside and outside a whirlpool

  • often differs as well!

  • Black-hole-like ocean eddies are surprisingly stable.

  • That’s why they often serve as water taxis, transporting all kinds of microorganisms,

  • oil, and plastic waste from one part of the ocean to another.

  • 8.

  • Brinicles Remember icicles hanging from your house’s

  • roof gutter on a sunny winter day?

  • Now, imagine the same icicle but with length measuring not in inches but in feet and made

  • not from rainwater but from super-salty seawater called brine.

  • I’ve just described a brinicle - one of the most astounding phenomena happening in

  • the bitterly cold waters of the Arctic and Antarctica.

  • When surface seawater freezes and forms ice, it exudes salt.

  • This makes some of the nearby water much saltier than before.

  • And the saltier the water, the lower its freezing point is.

  • The result is pockets of ocean brine trapped in ice packs.

  • Once this ice cracks, you can observe something bizarre and amazing: the brine starts to leak

  • out.

  • It’s saltier and denser than the surrounding water, that’s why it starts to sink toward

  • the bottom.

  • Along the way, the super-cold brine comes into contact with not-so-cold water and freezes

  • it.

  • That’s when you can see an ice tube forming around the sinking brine!

  • Congrats, youre witnessing the appearance of a brinicle - or ice stalactite.

  • It usually takes a brinicle four to twelve hours to reach the ocean floor.

  • 9.

  • Underwater Crop Circles For the first time, underwater crop circles

  • were spotted in 1995 close to Japan’s southern coast.

  • Local divers called these 7-ft-wide artfully patterned structuresmystery circles.”

  • The enigma had been plaguing many minds for almost 16 years until the culprit was finally

  • caught.

  • Imagine the researcherssurprise when it turned out to be a male pufferfish!

  • The fish needs a bit more than a week to build one circle, and the aesthetics are obviously

  • crucial!

  • A male is swimming inside the circle digging valleys in the sand with its fins.

  • But that’s not all: the fish also use shells and corals to decorate particular parts of

  • their circles!

  • But the wholebuild-a-circlething has a practical purpose as well.

  • The way a male fish swims pushes the sand toward the center of the circle and creates

  • a mound which later serves as a nest.

  • Ah, he’s getting ready to be a daddy.

  • Hey, if you learned something new today, then give the video a like and share it with a

  • friend!

  • And here are some other videos I think you'll enjoy.

  • Just click to the left or right, and stay on the Bright Side of life!

The world ocean covers more than 70% of the Earth’s surface, contains 97% of its water,

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大西洋でブラックホールを発見 (They've Found Black Holes in the Atlantic Ocean)

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    林宜悉 に公開 2021 年 01 月 14 日
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