Magus Tech (Technological Wizard)

The genius remembers the address of this site in a second: (Apex Chinese), the fastest update! No advertisements! You must know that uranium is not the same as uranium 235.

As a chemical element, uranium belongs to the actinide series in the periodic table of elements, the chemical symbol is U, and the atomic number is 92. Because uranium is slightly radioactive, its isotopes are unstable, so it exists in three forms in nature, namely uranium-238, uranium-235, and uranium-234.

Among these three forms, only uranium 235 can undergo spontaneous fission. In other words, only uranium 235 can truly become the raw material for nuclear weapons.

And what is the content of uranium 235?

Compared with uranium 238, the content of 99.2739% to 99.2752%, and the content of uranium 235 are only about 0.7198% to 0.7202%.

In other words, less than 0.1%, less than one thousandth.

This is also the most difficult thing in the nuclear weapons research and manufacturing program - how to separate uranium 235 and uranium 238 and extract them specially?

The current purification is the purification in the true sense, and it is the real operation of nuclear raw material uranium 235, not its brother - uranium 238.

You must know that uranium 235 and uranium 238 are isotopes, but their physical and chemical properties are almost exactly the same. The only difference may be that one has 143 neutrons in the nucleus, and the other has 146 neutrons.

How to use this difference that only exists in the microcosm to separate and purify uranium-235 is the real difficulty to be dealt with in the fourth stage of the nuclear weapons research and manufacturing plan.

So, what to do?

Li Cha stood thinking in the uranium element purification sector, his eyebrows furrowed a little bit, as if he was trying to recall the memories stored in his brain.

After recalling it for a long time, his eyebrows slowly opened again, and he said with some relief: "Well, I seem to have forgotten it."

Yes, he forgot.

At the most critical stage of planning, he forgot how to do it.

After all, his brain is not a computer, and it is impossible to remember everything. Knowledge that is basically impossible to use, such as nuclear weapon manufacturing, is easy to forget.

But after forgetting, he didn't panic or get angry.

On the one hand, although he can't remember the knowledge of the fourth stage, he has a complete knowledge system, so he can deduce it through calculation, it just takes a while.

On the other hand, he doesn't even need inferences. Because the forgetting he said now is not really forgetting, but the superficial brain activity is temporarily undetectable—after all, this knowledge is really not very useful in normal times. In order to ensure the most efficient use of the brain, he usually puts the The knowledge with relatively low utilization rate is hidden in the deep part of the brain, and the knowledge with higher utilization rate is placed in the shallow part of the brain to ensure that it can be retrieved as quickly as possible.

So……

"breathe--"

Li Cha took a deep breath and said, "It looks like I'm going to that place for a while."

"Then, let's go." Richard said, stepped out of the uranium element processing sector, and walked towards the main laboratory.

In the center of Eden, in the cylindrical main laboratory, there is a separate lounge.

The lounge area is very small, only about four square meters, and the decoration is extremely simple, except for a bed, there is almost nothing else.

Since the main laboratory was built, this lounge has been rarely used, but today Richard walked in.

...

"Tat-tat-tat..."

Taking steps, Li Cha walked into the lounge, did not do anything special, just lay down on the bed quietly.

"breathe--"

"breathe----"

Li Cha kept breathing, the frequency was getting lower and lower, and the interval was getting longer and longer. The heart rate slowed down, and the whole person entered a dormant state.

This state is more devoted than meditation, allowing Li Cha to enter the deepest part of his brain and mobilize all his memories.

...

"Boom..."

I don't know where the roar comes from,

Li Cha's consciousness awakened in a starry sky.

Looking around, Li Cha found that there were stars all over him, big and small, with different colors.

And the place he was in was a piece of empty space, that is, in the barren outer space.

There is no air here, and naturally there is no air pressure, it is an absolute vacuum.

This is extremely dangerous for fragile creatures like humans.

According to the earth, the information collected in the manned spacecraft center with the prefix N of a certain big country, and a vacuum chamber space suit leaking incident, will not be seriously harmed at the beginning.

For example, the human body will not explode, because the skin has a certain elasticity.

The blood doesn't boil either.

Because human blood vessels also have a certain degree of elasticity, they can generate a certain pressure on the blood, resulting in the blood pressure of the human body being generally 75 Torr (1 Torr, equal to 1 mm Hg) higher than the pressure of the external environment. When the pressure of the outer space environment is 0, the blood pressure of the human body can still be maintained at about 75 Torr, which is 75 mm Hg, 0.099 standard atmospheric pressure (760 mm Hg).

At this time, the boiling point of water is 46°C, and the body temperature of 37°C is not enough to make blood boil.

People don't freeze to death.

Because space is not a cold place, in fact, because there are few molecules in space, space does not have the property of "temperature". In other words, it's neither hot nor cold, making it a good insulator. When exposed to it, the water on the human body surface will evaporate, making people feel a little chilled, but not frozen.

All in all, a few seconds of vacuum exposure isn't too bad.

But ten seconds later, the problem started.

For example, because the star radiation is too strong, there is no need to protect it, which can cause sunburn.

For example, although the skin is elastic, decompression sickness will occur due to the difference in internal and external air pressure, resulting in mild, reversible, painless swelling of the skin and subcutaneous tissue.

At this time, the human body's consciousness can still be maintained for a few seconds, and then it will be paralyzed, convulsed, and comatose.

During this process, water vapor forms in the soft tissues and veins, causing the body to expand to almost double its original size. After that, the heart first rises, and then falls rapidly, and the arterial blood pressure also drops. The venous blood pressure will rise due to gas expansion, exceeding the arterial blood pressure within tens of seconds, interrupting the blood circulation inside the human body.

After waiting for one minute, the human body is very likely to die due to myocardial fibrillation, and cardiopulmonary resuscitation is irreversible.

After two minutes, there was almost no chance of survival.

However, Li Cha was in outer space at this time, observing the surrounding environment for a long time, with a natural expression and no injuries.

Because this is not the real world, or it is not the external material world.

This is the virtual world, the world of imagination, the world of thinking, the world deep in Richard's brain and the bottom of his soul.

This is Li Cha's biggest secret. It is the reason why he left the Blue Lion Kingdom and walked step by step to the present. It is the confidence to ignore all kinds of dangers, the source of endless hole cards, and the basis for trying to solve the ultimate problem.

Here is... Li Cha's Memory Palace.