Magus Tech

To know the uranium element, and uranium 235 is not the same.

As a chemical element, uranium belongs to the actinide system in the periodic table. The chemical symbol is U and the atomic number is 92.Because uranium is slightly radioactive, its isotopes are unstable, resulting in its existence in three forms in nature, namely uranium 238, uranium 235, and uranium 234.

Of these three forms, only uranium 235 can undergo spontaneous fission. In other words, only uranium 235 can really become a 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 plan-how to separate and specifically extract uranium 235 and uranium 238?

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

It is important to know that uranium 235 and uranium 238 are almost identical in physical and chemical properties. The only difference may be that there are 143 neutrons in one nucleus and 146 neutrons in the other.

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

So, what should I do?

Richard stood thinking in the uranium element purification sector, his eyebrows wrinkled a little, as if he was trying to recall the memory stored in the brain.

After a long time of recollection, his eyebrows slowly spread again, and he said with some relief: "Well, it seems that I forgot."

Yes, he forgot.

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

After all, his brain is not a computer. It is impossible to remember everything. Knowledge that is basically impossible to use, such as nuclear weapons, is easy to forget.

But after forgetting, he did not have any panic or anger.

On the one hand, although he can't remember the knowledge of the fourth stage, he has a perfect knowledge system, so it can only be inferred by calculation, it only takes a while.

On the other hand, he does not even need to reason.Because what he said is forgetting, not really forgetting, but the superficial brain activity is temporarily undetectable-after all, this knowledge is really not very useful at ordinary times. In order to ensure the most efficient use of the brain, he usually puts The relatively low-utilization knowledge is hidden deep in the brain, and the higher-utilization knowledge is placed in the superficial layer of the brain to ensure the fastest retrieval.

Then...

"Breathe--"

Richard took a deep breath and said, "It looks like I'm going to that place."

"Then go," Richard said, striding out of the uranium element processing sector and toward the main laboratory.

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

The lounge area is very small, but about four square meters, the decoration is very simple, there is almost nothing but a bed.

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

...

"Tap..."

Taking a step, Richard walked into the lounge, did nothing special, but lay quietly on the bed.

"Breathe--"

"Breathe----"

Richard breathes continuously, the frequency is getting lower and lower, and the interval is getting longer and longer.The heart rate slows down, and the whole person enters a dormant state.

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

...

"Boom..."

Not knowing where the roar came from, Richard's consciousness woke up in a starry sky.

Looking around, Li Cha found that his upper, lower, left, and right sides are stars, big and small, and different colors.

And where he is, it is a void space, that is, barren outer space.

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

This is extremely dangerous for a fragile creature like humans.

According to the information collected on the N-headed manned spacecraft center of a large country and a vacuum capsule spacesuit leak incident on the earth, it will not be seriously injured initially.

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

The blood will not boil.

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

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

People will not freeze to death.

Because space is not a cold place, in fact, because there are few molecules in space, there is no such thing as "temperature" in space.In other words, it is neither cold nor hot, and is a good insulator.When exposed to it, the water on the body's body will evaporate, making people feel a little cold, but it won't freeze up.

In short, a few seconds of exposure to vacuum is not very bad.

But after ten seconds, the problem came.

For example, because the stellar radiation is too strong, there is no need for protection, which can cause sunburn.

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

At this time, the human consciousness can also be maintained for just a few seconds, after which it will become paralyzed, convulsed, and comatose.

During this process, water vapor will form in the soft tissues and veins, causing the body to swell to almost double the original level.After that, the heart rate rises first, then falls rapidly, and the arterial blood pressure also drops.Venous blood pressure will rise due to gas expansion, exceeding arterial blood pressure within tens of seconds, interrupting the blood circulation inside the body.

After a minute, the human body is very likely to die due to myocardial fiber tremor, and CPR cannot be recovered.

After two minutes, there is little chance of survival.

However, Richard was in outer space at this time, observing the surrounding environment for a long time, his expression was natural, and no injuries appeared.

Because this is not a real world, or a physical world outside.

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

This is the biggest secret of Richard, the reason for leaving the Blue Lion Kingdom and walking step by step to the present.It is a source of disregard for all kinds of dangers, a source of endless cards, and an attempt to resolve the ultimate problem.

Here is... Richard's memory palace.