Popular science says oxygen is poisonous, and the whole internet scolds me for being sick

The underwater people were full of vigor and vitality back then.

After all, they can be said to be the first group of intelligent life to develop in the ocean.

After all, life originated in the ocean.

The first intelligent life emerged in the ocean.

This is as it should be.

It’s just that sea civilization is different from land civilization.

The resources in the sea are not as abundant as those on land.

And the difficulty of mining is higher than on land.

After all, in primitive society, some mineral resources were found in the open air.

The mining difficulty is very simple, just pick it up.

But it's completely different in the ocean.

Everyone knows that seawater is corrosive.

It doesn't matter if you're metal or whatever.

Just imagine the various chemical and physical experiments we can easily do on land.

In an environment like the ocean, we want to prepare a certain solution.

Or maybe you want to calcine something.

It's simply impossible to accomplish.

For example, we fire pottery utensils.

This symbolizes that our human ancestors have mastered the method of firing tools.

Think about it, what can you do in the environment of the ocean?
Although underwater civilization developed early.

But their development process can be said to be very tortuous.

Because the difficulties they need to overcome are much greater than on land.

But once it is developed by underwater civilization.

It was out of control.

Such an environment can develop sustainably on the seabed.

The sea can be said to have given birth to underwater civilization.

It also constrains underwater civilization.

Like some fish, they can swim freely in the seabed.

But once they reach land, they will die from suffocation.

The same is true for us humans.

It can survive very well on land.

But if humans go into the sea, they will also be drowned by the water.

This is determined by the environment.

So at the beginning, the underwater civilization could not come up to the land.

After all, for underwater civilizations, going to land is like us humans swimming in the water.

It's okay in a short period of time, but if it lasts for a long time, you may die on land.

But after the underwater spacecraft was created.

The underwater people can enter and exit the land and the sea at will.

The spacecraft they created would necessarily be dual-purpose.

It can fly on land and dive.

This is the most basic function.

Since then, the underwater people have gone through a long period of sedimentation and development.

Finally broke free from the constraints of the ocean.

At that time, the people under the sea also believed that they were the only intelligent civilization in the entire blue planet.

He is the master of the entire blue planet.

After all, the underwater people started to develop from the bottom of the sea.

They also have a process of external exploration.

For example, the air is above their heads.

They live on the seabed, which is more than 10,000 meters deep.

Huge water pressure and high concentration of oxygen.

Plus the ice cold water temperature.

Let their bodies evolve towards this form.

The bodies of underwater people can withstand low temperatures and high water pressure.

It is also possible to utilize high concentrations of oxygen.

If a normal person is in such an environment.

Not to mention in the deep sea.

Even ordinary people will lose body temperature if they stay in cold water for a long time.

Another point is that humans will be poisoned if exposed to high concentrations of oxygen.

If high pressure is added, the internal organs of the human body will be squeezed out. This may happen during the ascent from a dive.

So would the undersea people.

They explore the world upwards.

From ten thousand meters deep sea to nine thousand meters deep sea.

The further you go up, the lower the water pressure will be.

Their bodies evolved to cope with high water pressure.

If you go to an area with low water pressure.

It will cause their bodies to explode like an inflated balloon.

In the process of underwater people's development and upward exploration.

Countless people in the sea want to swim upstream.

Countless underwater inhabitants have exploded due to low water pressure.

So for a long time, swimming upstream became a taboo for the people in the sea.

But some people found that if you swim slowly.

After a period of adjustment and rest, you will adapt to the lower water pressure.

This allowed them to move upward for a long time.

Until they found the depth of a certain range.

The oxygen started to decrease.

Everyone knows that oxygen is soluble in water.

Fish in the water filter seawater through their gills and absorb oxygen.

The greater the pressure, the more oxygen can be dissolved.

But in the process of gradually rising.

Some areas on the seabed are low-oxygen zones.

The underwater people are completely unable to survive in such a low-oxygen area.

There was one more obstacle in their way of breaking through.

During this period, the underwater people invented something.

This thing was only discovered by our scientists in 2013.

Scientists call this thing "dark oxygen."

It began with Dr. Andrew's team at the Scottish Marine Science Association measuring oxygen consumption in the deep ocean.

But when he was measuring in the closed experimental chamber.

It was found that the oxygen concentration in the closed experimental chamber increased instead of decreased.

It can even reach more than three times the background oxygen value.

This is something that cannot possibly happen.

At first Dr. Andrew thought there was something wrong with the instrument.

Otherwise, how could such an error occur?

It's like we are calculating the food consumption in some enclosed space.

See how much food is consumed in this space in one hour.

But in the end they found that the food inside was not only not decreasing, but increasing.

Later, after repeated experiments and different testing methods, the results were finally confirmed.

Dr. Andrew's team found that this phenomenon is true.

In the deep ocean, there is some way in which oxygen is created that is unknown to us humans.

Finally, Dr. Andrew's team ruled out interference from biological respiration and traditional chemical reactions.

It was finally confirmed that all this oxygen came from the hydrolysis of polymetallic nodules.

According to their detection, the potato-shaped polymetallic nodules widely distributed on the seabed are rich in metals such as manganese, cobalt and nickel.

The potential difference of metal ions on its surface forms a high voltage of up to 0.95 volts, similar to a natural battery.

As nodules gather, the voltage may build up to a level high enough to electrolyze seawater into oxygen and hydrogen.

We humans have always believed that oxygen comes from algae and plants.

In some natural environments, oxygen is also produced after certain chemical reactions.

But unexpectedly, there is a third way in nature.

That is, in nature, seawater is naturally electrolyzed to produce oxygen.

It's just different from what these scientists think.

This dark oxygen is not formed naturally.

It is the result of the underwater people.

The dark oxygen they created is a technology that utilizes seawater.

Seawater itself contains a lot of oxygen, it just needs electrolysis.

Dark oxygen is equivalent to creating an environment with high oxygen concentration.

So that the underwater people can survive and explore in the upper seas. (End of this chapter)