Video spoilers history, starting with the blitzkrieg on Poland

New sky dome video appears.

A map of the Mediterranean region appeared on the screen.

The ancient people were no strangers to maps of the Mediterranean area.

But then the map began to change.

The Mediterranean Sea, located in the central part of the country, is gradually drying up.

The Mediterranean Sea gradually turned into a land.

And the sky began to tell the story slowly.

【I wonder if you have heard of the Geography Bar Engineering Team? 】

[This engineering team only works on large projects.]

[For example, tiling the Great Wall. ]

[For example, the Pacific Ocean plus a sunshade. 】

【For example, the Mount Everest sightseeing elevator. 】

【For example, the China-U.S. Cross-Sea Bridge. 】

[For example, underground tunnels directly take oil from the Middle East...]

【The Gibraltar Dam is a classic project of the engineering team. 】

[You might think that the Gibraltar Dam that cuts off the Mediterranean Sea is just a crazy idea of ​​netizens in the geography forum? ]

【In fact, it is not. 】

[Today we are going to talk about the most hardcore "land reclamation" plan in human history - the Gibraltar Dam Project. 】

[This isn’t just any developer building a sand castle on the beach.]

[It is the "water retreat SPA package" proposed by German architect Hermann Sögel for the Mediterranean in the 1920s. ]

【At that time, Europeans, especially Germans, were worried about "living space." 】

【Everyone is worried that there are too many people and not enough land, and if things continue like this, war will have to break out again. 】

[The idea proposed by Hermann is to make the Mediterranean a new land and provide living space for European countries. ]

【Thereby reducing war.】

【It can also promote European and African integration. 】

So, how do we do this?

[First, cut off the water supply to the Mediterranean Sea! ]

[According to the plan, an epic dam must be built in the Strait of Gibraltar to cut off the water pipes between the Mediterranean and the Atlantic.]

[By the way, the amount of electricity generated is said to be enough to feed half of Europe. ]

[Then build another dam in the Dardanelles to lock the Black Sea into a small dark room. ]

[Finally, a dam will be built between Sicily and Tunisia, cutting the Mediterranean in half.]

[According to this operation, the water level of the Mediterranean Sea is expected to drop by 200 meters, and 60 square kilometers of land will be added out of thin air - equivalent to cutting the area of ​​Argentina off the map and pasting it between Europe and Africa.]

[Do you think this is the end? ]

[The German brother also thoughtfully arranged a life-saving package for the Sahara Desert. ]

[Build a dam on the Congo River to create a lake, and imagine using the water vapor from the freshwater lake to turn the Sahara into the Sahara savannah. ]

【But the reality is. 】

【If the Gibraltar Dam is really done. 】

【Drained the Mediterranean.】

[This is equivalent to pouring 364 million cubic kilometers of water into the sea, and the global sea level will directly rise by 10 meters. The Bund will become a diving resort. ]

[The salinity of the Mediterranean Sea is as high as 38‰, and the land after the water recedes is saltier than pickled cabbage.]

[It is saline-alkali land, whatever you plant will die. ]

[I guess I can only grow camel cactus. 】

[It is also technically impossible to achieve. ]

[The deepest point of the Strait of Gibraltar is 1181 meters, which is beyond the reach of modern technology, let alone the equipment of 1920. ]

[Although this plan has now become a daily post on the Geography Forum. ]

【But imagination is still possible. 】

……

The sky dome video has come to an end.

When the ancients saw the concept of this huge project, they all found it very interesting.

Sui Dynasty.

Yang Guang is an avid fan of giant engineering projects.

He was originally leaning lazily on the dragon chair, watching the introduction of the Gibraltar Dam on the sky screen with boredom.

At first, I just glanced at it casually.

But as the picture continued to show the scale and design of the dam, Yang Guang's expression gradually became complicated.

If this is completed, wouldn’t it be better than all the projects of the Sui Dynasty?

But after watching the video.

Yang Guang chuckled.

"After all, it's just an idea, not an actual project."

"European barbarians have quite a rich imagination, haha."

"Besides, even if the Gibraltar Dam is built, can it be compared with my Grand Canal?"

"Yu the Great only dredged the nine rivers, but I am building a canal to connect the five lakes and four seas!"

"This Gibraltar Dam only blocks the water from the two oceans. How can it compare to my Yongji Canal that goes directly to Zhuo County?"

……

And the sky screen continued to play.

The documentary's affectionate voice narrates slowly.

[Ancient sea desert six million years ago: the mystery of the Mediterranean drying up! ]

[Standing on the cliff of the Strait of Gibraltar and overlooking the Mediterranean Sea, the blue water is sparkling in the sun. 】

【But if we turn back time six million years. 】

[This vast expanse of blue ocean is actually a salt desert more desolate than the Sahara? ]

[The seabed is exposed with hideous rifts, the strong winds blow up salt grains to form white sandstorms, and the only remaining saltwater lake is boiling and rolling under the scorching sun.]

[This is the "Messina Salinity Crisis" that shocked the geological community. ]

【A shocking change that will rewrite the face of the earth. 】

[The story begins in the late Miocene, when the African plate, like a stubborn bull, rammed northward into the Eurasian continent at a speed of several centimeters per year.]

[This geological struggle, which lasted for tens of millions of years, reached its climax 600 million years ago.]

[The crust beneath the Strait of Gibraltar has risen dramatically, completely tightening the tap connecting the Atlantic Ocean and the Mediterranean Sea.]

[The original 4000-meter-deep submarine passage was turned into an underwater Great Wall by the uplifted rock layers.]

【The Mediterranean Sea has since become a giant inland bathtub. 】

[The Mediterranean Sea, deprived of the fresh water from the Atlantic Ocean, began to dehydrate madly under the scorching sun.]

【At the same time, the global climate is also undergoing complex and profound changes. 】

[At that time, the Earth was in a relatively cold period, and glaciation was very active in high latitudes.]

[Large amounts of seawater are frozen in polar glaciers, causing global sea levels to drop.]

[This is undoubtedly a double whammy for the Mediterranean. ]

[Because of the obstruction of the Strait of Gibraltar, the Mediterranean Sea has lost its main channel for exchanging seawater with the Atlantic Ocean.]

[The drop in sea level has significantly reduced the flow of rivers into the Mediterranean.]

[At this time, the Mediterranean Sea was like a huge basin that had lost its water supply and began to fall into the crisis of drying up. ]

[Under the strong sunlight, the vast Mediterranean Sea is like a huge evaporating dish, with water constantly turning into water vapor and rising into the air.]

[The once turbulent sea gradually revealed the reefs and mud on the seabed. ]

[The coastline is retreating at a speed visible to the naked eye.]

【Those creatures living in the ocean are facing an unprecedented survival crisis. 】

【The whales that used to swim freely in the deep sea are now fleeing in panic.】

Shellfish exploded and died on the exposed sea floor. Green carpets of algae withered into brown spots in the salt.

[In just tens of thousands of years, the water level of this vast ocean, which is over 5000 meters deep, has dropped by 2000 meters! ]

[Ninety percent of the sea area has turned into an ancient desert.]

[The entire Mediterranean ecosystem, like a shaky building, is rapidly collapsing.]

[The Mediterranean Sea, once full of life, has become a dead world covered in salt frost. ]

[During the most severe period of drying up, the Mediterranean presented a hellish spectacle.]

[A salt layer nearly 2000 meters thick has accumulated in the central sea basin! 】

[Crystallized salt forms jagged frost patterns on the cracked seabed.]

[Gypsum veins are embedded in the rock like twisted blood vessels.]

[The occasional rainstorms have carved out deep valleys in the salt desert.]

[Around the former underwater mountains, spectacular canyons and cliffs were formed due to the rapid receding of the sea water. ]

[About 533 million years ago, the drying up of the Mediterranean reached its peak.]

[At this time, the Mediterranean Sea was almost completely dry, with only a few scattered small lakes and salt flats left.]

【The blue ocean that once connected Europe, Africa and Asia has turned into a barren land. 】

Outside the sky.

Late Han Dynasty.

Cao Cao saw the picture.

The boundless ocean was actually completely dry.

The scene of myself standing in the east facing Jieshi and gazing at the vast ocean emerged involuntarily in my mind.

At that time, I looked at the vast sea and wrote the poem "The water is so calm, the mountains and islands stand tall. The autumn wind is bleak, and the waves surge."

At that time, I only felt that the sea was vast and boundless, full of power, and would never disappear.

But now the Mediterranean has turned into a desert.

Only after seeing such earth-shaking changes can we realize the magical power of nature!

Cao Cao, who is essentially a literary youth, just felt stuck in thinking about life.

Then he slowly said to the people around him: "Everyone, you see this Mediterranean Sea, it used to be dry, as if there was no life left."

"But we know that the Mediterranean is still a vast ocean and has regained its vastness."

“When I looked at the ocean, I thought the power of the ocean was fully demonstrated. Today, I know that there are such amazing changes in the world.”

Xun Yu took a step forward and said respectfully:
"Prime Minister, the changes in the Mediterranean are truly astonishing. I think this force of nature is beyond human control."

Cao Cao nodded slightly.

"Yes, just as I wrote in my poem, the movement of the sun and the moon seems to come from it; the shining stars seem to come from it."

“The sea nurtures everything, but it can also change rapidly.”

“When the Mediterranean Sea dries up, one can imagine the hardships faced by all living things around it.”

"And when I'm resurrected, what kind of impact will it bring?"

After saying this, Cao Cao looked up at the sky again.

I look forward to seeing the subsequent changes in the Mediterranean Sea and how it turns from a desert back into a sea.

Canopy.

[However, the newly formed Mediterranean land became a new route for animals to migrate.]

[Some animals that originally lived on the African continent began to migrate to Europe and Asia through this dried-up Mediterranean region.]

[The root cause of this Mediterranean drying disaster lies deep in the restlessness of the mantle. ]

[The demise of the ancient Mediterranean subduction zone set off a chain reaction, new research shows.]

[As the subducting plate breaks, mantle material surges up like a lava fountain, lifting the crust of the Gibraltar area by hundreds of meters.]

[This dramatic change happening beneath the Earth's skin is far more thrilling than the changes in the sea and land on the surface. ]

[It is equivalent to using the power of mountain building. ]

[An invisible dam was built on the seabed. ]

[The imprisoned Mediterranean began to breathe desperately. ]

[Although occasionally earthquakes crack the rock dam, allowing Atlantic water to pour in like a waterfall.]

[But these moments of last-ditch hydration actually accelerated the cycle of death. ]

[The influx of seawater evaporates faster in a closed environment, leaving behind more concentrated brine and thicker salt layers.]

[As plate movement continues, the obstruction of the Strait of Gibraltar is gradually alleviated. ]

[It wasn't until 530 million years ago that continued crustal adjustments finally collapsed the Gibraltar Dam.]

[The waters of the Atlantic Ocean, like a beast that has been suppressed for a long time, finally found a breakthrough. ]

[About 533 million years ago, a huge wave swept in, and the waters of the Atlantic Ocean poured into the Mediterranean Sea with overwhelming force.]

[This powerful water flow forms a huge waterfall, which is far more spectacular than any other waterfall in the world today.]

[Atlantic water rushes in at a rate of 100 million cubic meters per second.]

[In just two years, this giant basin that had been dry for 600,000 years was refilled. ]

[Scientists estimate that the amount of seawater flowing into the Mediterranean at that time was 1000 times the amount of the Amazon River.]

【The Mediterranean Sea is resurrected. 】

[But the impact of hundreds of thousands of years of drying up is extremely far-reaching. ]

[When the sea receded, Africa and Europe were connected by the exposed seabed.]

[Saber-toothed tigers and three-toed horses chased each other in the former fishing grounds, and ancient apes spread to Eurasia along the dried-up Adriatic Sea basin.]

[As the ocean basin reopened, the re-isolated land creatures went their separate ways in evolution.]

This may explain it.

Why modern Eurasian and African species differ so dramatically.

[More insidious influences lurk in the climate system.]

[The huge amount of salt released during the dry period changed the Atlantic Ocean currents and may have triggered the expansion of the Northern Hemisphere ice sheets.]

[Those salt deposits on the seafloor are still slowly releasing chloride ions, affecting cloud formation over the Mediterranean.]

[Although millions of years have passed. ]

[But the traces it left are still clearly visible. ]

The sky screen video ends here.

The ancients saw this tremendous change.

They were also filled with awe.

Qin Dynasty.

Ying Zheng sighed:
"I offered sacrifices to the gods at Mount Tai, and I thought my achievements surpassed those of the Three Sovereigns and Five Emperors."

“Now that I’ve seen the Mediterranean dry up and come back to life, I know that the power of heaven and earth is beyond human control.”

Then he looked towards the direction of the Mausoleum of Mount Li.

Ying Zheng slowly asked himself:

"I wonder if my millions of terracotta warriors will become a grain of sand in the geological era a million years from now?"

"Come to think of it, it's been a while since I last patrolled the East China Sea."

"I'll go there sometime and see if I can turn Bohai Sea into a fertile field."

"If only we could turn Bohai Sea into land."

"Then it will be much easier for Daqin to control Liaodong."

Li Si then recalled the myths he had learned.

"Gong Gong angrily hit Mount Buzhou, and the river in the sky poured out into the four seas."

"Looking at the Mediterranean Sea's withering and flourishing today, it seems like a confirmation of ancient myths."

"Could it be that the ancient myths are not myths at all? Instead, they are memories passed down by the ancients?"

"Since the sky appeared."

“Many of the contents about the ancient Earth coincide with the myths.”

"Could it be that millions or tens of millions of years ago, human civilization had recorded the disaster at that time?"

"And it was passed down to our later generations, the Qin Dynasty?" (End of this chapter)