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Video: A Deep Dive Into the World’s Oceans

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In the battle for mind-share, space vs. sea is no contest.

From the epic race to reach the surface of the moon, to the well-documented trials and tribulations of SpaceX’s rocket launches, space is widely regarded as mankind’s natural next step.

For centuries, we’ve gazed at the night sky attempting to decode the messages of the cosmos, but we’ve treated the ocean as a dumping ground or as a nemesis. In the era of big data, it’s strange to note that an estimated 95% of the world’s oceans still remain unexplored.

A Deep Dive Into the World’s Oceans

Today’s video, from Tech Insider, helps shed some light on just how deep the ocean is, and put that depth into a context us surface-dwellers can understand.

The ocean is vast, but looking at it in terms of light and food supply allows us to better understand the structure of that ecosystem.

There are five main oceanic divisions:

Ocean ZoneDepth (m)Depth (ft)
epipelagicSurface to 200 mSurface to 650 ft
mesopelagic200 to 1,000 m650 to 3,300 ft
bathypelagic1,000 to 4000 m3,300 to 13,000 ft
abyssopelagic4,000 to 6,000 m13,000 to 20,000 ft
hadopelagic6,000 to 11,000 m20,000 to 36,000 ft

Let’s take a look at each layer in more detail.

Scratching the Surface

The surface layer of the ocean, or epipelagic zone, is the portion we’re most familiar with. This portion of the ocean is amply lit by the sun, and though it’s the smallest zone by volume, it contains much of the ocean’s life. In fact, the phytoplankton living at this level produce half of the world’s oxygen.

One of the chief concerns about climate change is that acidification and temperature changes may dramatically influence levels of phytoplankton in the ocean, thus putting Earth’s largest source of oxygen in jeopardy.

Due to its proximity to sunlight, this layer of the ocean is the fuel that feeds the rest of the ocean. As organisms die, they begin to sink to the lower depths in the form of “marine snow”. This is vital since plant life cannot survive beyond this thin, top layer of water. Put simply, the epipelagic zone feeds the rest of the ocean.

The Twilight Zone

The next layer, called the mesopelagic zone, begins 200m below the surface and extends down to the 1km level. At this point, sunlight illuminating the water begins to wane and water pressure already begins to push beyond what the human body can tolerate.

This dimly lit zone is where we begin to see evolutionary adaptations such as bioluminescence. Large fish and whales also enter this zone to hunt for food.

Hello Darkness, My Old Friend

At 1km below the surface – in the bathypelagic zone – sunlight has faded completely and the ocean is nearly pitch black. This region accounts for 90% of the ocean’s volume and as the video below (via TEDed) explains, this is where things start to get really weird.

The Abyss

The aptly named abyssopelagic zone, begins at 4,000 meters below the surface and extends down to 6,000 meters (or the ocean floor). At this level, the water temperature is nearly at freezing level, and because no sunlight reaches this zone, many of the animals that live here are sightless. The Abyss is the largest zone in the ocean, accounting for about 75% of the ocean floor and 54% of the ocean’s volume.

abyssal plain ocean topography

This region of the ocean is the home of the Abyssal plains. The plains are the upper surface of sediment that has accumulated in abyssal depressions, smoothing out what would otherwise by irregular topography. By this depth the consistent flow of marine snow has decreased dramatically, so organisms depend on occasional “feasts” to survive. Occasionally, events such as large algae blooms near the surface end up delivering huge amounts of food to the ocean floor once those blooms die off.

Abyssal plains could eventually become a big deal economically due to hydrocarbon exploration and mineral extraction. An example of the latter is polymetallic nodules. These potato-sized concretions are scattered around the seafloor at depths greater than 4,000 meters. If it becomes economically viable to harvest these nodules (comprised of manganese, iron, nickel, cobalt, and copper), companies could generate considerable revenue. Currently, there are eight commercial contractors licensed by the International Seabed Authority to explore the extraction of nodule resources.

Earth’s Final Frontier

The hadopelagic zone comprises less than 1% of ocean volume and 0.2% of the seafloor, but looms large as one of Earth’s least understood ecosystems. In fact, more humans have been on the moon than have visited this area of the ocean, and most of this zone only exists within deep water trenches and canyons that extend well beyond the Abyssal plains. There are 33 “hadal trenches” and five of them exceed 10,000 meters – including the world’s deepest oceanic point, the Mariana Trench.

The water pressure here can reach a mind-bending eight tons per square inch, but in spite of the extreme pressure, lack of food, and near-freezing temperatures, life can still be found. Most of the creatures that inhabit the hadal zone are literally bottom feeders; they eat the very last bits of marine snow that reach the trench floor.

While nearly all organisms on Earth derive energy either directly or indirectly from the sun, certain organisms have adapted to survive by using hydrothermal vents as an energy source. Many of the creatures living around vents contain symbiotic bacteria, which subsist off hydrogen sulphide emissions. This unique ecosystem provides clues for how life could exist on other planets with more extreme ecosystems.

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Misc

Visualizing the Origin of Elements

You’re likely familiar with the periodic table, but do you know the origin of elements? This graphic shows where our solar system’s elements come from.

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origin of elements

Visualizing the Origin of Elements

Most of us are familiar with the periodic table of elements from high school chemistry. We learned about atoms, and how elements combine to form chemical compounds. But perhaps a lesser-known aspect is where these elements actually come from.

Today’s periodic table showing the origin of elements comes to us from Reddit user u/only_home, inspired by an earlier version created by astronomer Jennifer Johnson. It should be noted that elements with multiple sources are shaded proportionally to reflect the amount of said element produced from each source.

Let’s dive into the eight origin stories in more detail.

The Big Bang
The universe began as a hot, dense region of radiant energy about 14 billion years ago. It cooled and expanded immediately after formation, creating the lightest and most plentiful elements: hydrogen and helium. This process also created trace amounts of lithium.

Low Mass Stars

Low Mass Star
At the beginning of their lives, all stars create energy by fusing hydrogen atoms to form helium. Once the hydrogen is depleted, stars fuse helium into carbon and expand to become red giants.

From this point on, the journey of a low and a high mass star differs. Low mass stars reach a temperature of roughly one million kelvin and continue to heat up. Outer layers of helium and hydrogen expand around the carbon core until they can no longer be contained by gravity. These gas layers, known as a planetary nebula, are ejected into space. It is thought that a low mass star’s death creates many heavy elements such as lead.

Exploding White Dwarfs
In the wake of this planetary nebula expulsion, a carbon core known as a “white dwarf” remains with a temperature of about 100,000 kelvin. In many cases, a white dwarf will simply fade away.

Sometimes, however, white dwarfs gain enough mass from a nearby companion star to become unstable and explode in a Type 1a supernova. This explosion likely creates heavier elements such as iron, nickel, and manganese.

Exploding Massive Stars

High Mass Star
Massive stars evolve faster and generate much more heat. In addition to forming carbon, they also create layers of oxygen, nitrogen, and iron. When the core contains only iron, which is stable and compact, fusion ceases and gravitational collapse occurs. The star reaches a temperature of over several billion kelvin—resulting in a supernova explosion. Astronomers speculate that a variety of elements, including arsenic and rubidium, are formed during such explosions.

Exploding Neutron Stars
When a supernova occurs, the star’s core collapses, crushing protons and neutrons together into neutrons. If the mass of a collapsing star is low enough—about four to eight times that of the sun—a neutron star is formed. In 2017, it was discovered that when these dense neutron stars collide, they create heavier elements such as gold and platinum.

Cosmic Ray Spallation
The shockwaves from supernova explosions send cosmic rays, or high energy atoms/subatomic particles, flying through space. When these cosmic rays hit another atom at nearly the speed of light, they break apart and form a new element. The elements of lithium, beryllium, and boron are products of this process.

Nuclear Decay
Supernova explosions also create very heavy elements with unstable nuclei. Over time, these nuclei eject a neutron or proton, or a neutron decays into a proton and electron. This process is known as radioactive decay and often creates lighter, more stable elements such as radium and francium.

Not Naturally Occurring
There are currently 26 elements on the periodic table that are not naturally occurring; instead, these are all created synthetically in a laboratory using nuclear reactors and particle accelerators. For example, plutonium can be created when fast-moving neutrons collide with a common uranium isotope in a nuclear reactor.

Discoveries Yet to be Made

There is still some uncertainty as to where elements with a middle-range atomic number—neither heavy nor light—come from. As scientific breakthroughs emerge, we will continue to learn more about the elements that make up the mass of our solar system.

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Culture

Visualizing the Daily Routines of Famous Creative People

The eclectic daily routines that inspired the world’s most famous creative people to produce their best and most original work.

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Visualizing the Daily Routines of Famous Creative People

Creative people have a reputation for circumventing convention.

After all, if creatives always did things the same way as everyone else, how could they ever produce anything original and truly unique?

While it’s not always easy to do things differently, the most famous creative people throughout history have almost always followed their own paths. The end result, thankfully for us, is a wealth of original art that has served to inspire generation upon generation.

Time Well Spent

Today’s chart comes to us from Podio and it breaks down the daily routines of famous creative people, such as Pablo Picasso, Mozart, Maya Angelou, or Benjamin Franklin.

We highly recommend the interactive version which allows you to highlight segments of the chart to see more specific details on the routines of each creative person.

It’s also worth noting that the routines listed don’t necessarily represent the exact everyday activities for the listed creatives – instead, they are representations of what’s been recorded in diaries, journals, letters, or other literature by these greats themselves.

Finally, most of the data comes from the book Daily Rituals: How Artists Work by Mason Currey.

Unconventional Habits of Creative Geniuses

Here are some of the creatives that had some of the most unusual and eccentric routines:

Ludwig van Beethoven
The famous German composer and pianist was a coffee addict, and would count exactly 60 beans for each cup of joe he consumed.

Franz Kafka
The novelist would have strong bouts of insomnia and often hallucinated. This condition shaped his creative process, and he stated in his journal that he only knew the type of writing in which “fear [kept him] from sleeping”.

Honoré de Balzac
The French novelist and playwright “[went] to bed at six or seven in the evening, like the chickens” and started working just after midnight. When he worked, he wore “Moroccan slippers” and a “notorious white monkish robe with a belt of Venetian gold”. In his defense, with this type of routine, he was able to write 85 novels in 20 years.

W.H. Auden
The English-American poet took Benzedrine – an amphetamine – every morning for 20 years as a systematic part of his routine and creative process. He balanced its use with the barbiturate Seconal, for when he wanted to sleep. He called amphetamines a “labor-saving device” that gave direct energy to his work.

Victor Hugo
The French poet, novelist, and dramatist, best known for penning Les Misérables and The Hunchback of Notre-Dame, had very busy and eclectic days.

His breakfast would include coffee and two raw eggs, and after working for a few hours in the morning, he would take an ice bath on the roof. In the afternoon, he would try to fit in a quick visit with his barber, a date with his mistress, and also some strenuous exercise. In the evening, he would write some more, and then play cards and go out with friends.

The Reputation Lives On

Rightfully or wrongfully deserved, the reputation of creative geniuses for doing things differently is something that will likely continue to live on – and the rest of the world will likely pass judgement so long as they continue to receive the fruits of their labors.

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