Hand rubbing nuclear fusion live in the wilderness

Chapter 356 Encountering a Typhoon
Using compressed air to fractionate gas at low temperature is more complicated than other gas production methods, but its biggest advantage is that it can be mechanized and large-scale production.

It is only necessary to control the atmospheric pressure, temperature and corresponding procedures of the fractionation device.

Most importantly, the raw materials in this way do not cost, and the inexhaustible atmosphere is there for you to use.

This is undoubtedly the best way for capitalists.

With the extraction equipment fully equipped, South Korean Won spent an afternoon refining various gaseous elements from the air.

Nitrogen, oxygen, helium, neon, argon, krypton, radon and other simple gases.

These high-purity gases processed through ultra-low temperature fractionation have greatly increased the progress of resource collection tasks, from 27.18% to 34.69%.

This method is correct, he is still 15.00% short of one of the basic conditions for resource collection tasks.

As for the other need to smelt three unnatural elements, during dinner time, Won also thought of a relatively easy solution.

This is also thanks to the problem with the progress of the resource gathering mission.

Isotopes do not count towards resource gathering quests, but almost all elements have isotopes.

Although the earth itself has many isotopes of elements, which are natural elements, more isotopes are man-made.

The same is uranium. There are only three uranium isotopes in nature, uranium-234, uranium-235, and uranium-238. These natural isotopes of uranium exist in pitchblende, vanadium-potassium uranite, calcium-uranium mica, and crystalline uranium ore. Inside the mine.

But there are dozens of artificial isotopes of uranium, ranging from uranium-226 to uranium-240.

These uranium isotopes are produced by humans using particle accelerators or other tools (such as nuclear reactors).

Although he doesn't have a particle accelerator or a nuclear reactor in his hands now, it doesn't have to be an element like uranium.

Of the 118 elements in nature, only about 20 do not have stable isotopes, and the rest have stable isotopes.

For example, the isotopes of this element of carbon include carbon 12, carbon 13C and the radioactive isotope carbon 14, which are present in nature.

And the artificial ones, from carbon 8 to carbon 22, are all.

These can be used for the Korean won.

But there are also disadvantages.

First of all, the difficulty of manufacturing isotopes will not be mentioned.

Even if the isotope production of some elements does not necessarily require a particle accelerator, the production difficulty is not small.

Secondly, all artificial isotopes are radioactive, but the strength is different.

Some isotopes have radioactive radiation so strong that you can cause harm even without lead suits.

But the radiation of some isotopes is relatively weak, even if you eat it, there is no problem.

Like a banana.

Bananas are a kind of fruit that actually has radiation.

The radiation of bananas is related to its potassium content.

Potassium has no radiation, but potassium has a brother, potassium-40, which is an isotope of potassium and is radioactive, and it is carcinogenic ionizing radiation, which is one of the main sources of natural nuclear radiation for the human body.

When severely affected by potassium-40 radiation, it can cause death.

In terms of quantity, it is almost enough to eat about two tons of bananas at a time.

As for whether he was killed by potassium-40 radiation, or died of strangulation, or died of diarrhea and dehydration, I don't know.

Talking about toxicity regardless of measurement, and talking about radiation regardless of numerical values ​​are all nonsense.

While all man-made isotopes emit radioactive radiation, not all isotopes are as distasteful as uranium radiation.

The three man-made elements won in resource gathering missions are ready to create some less radioactive isotopes.

Not only is there no harm to the human body, but also because of the manufacturing method of some isotopes that rank high on the periodic table of elements.

Using a large number of neutrons in the atomic reactor or positively charged high-speed particles in the accelerator to bombard the target substance under strict control, after a certain atom in the irradiated object undergoes a nuclear reaction, the required isotope may be generated.

This is the main way isotopes are made, and the most common method.

But he doesn't have a particle accelerator in his hand, so this method obviously doesn't meet the needs.

So Won can only find another way to make isotopes.

This time, the isotopes he chose to manufacture were calcium, potassium, carbon, etc.

Unlike heavy nuclear atomic elements such as uranium and radium, calcium, potassium and carbon do not necessarily use particle accelerators or nuclear fission reactions in the production of isotopes because of their strong activity.

Some isotopes can be produced through some chemical and physical means.

Still taking carbon as an example, in human society, except for the three natural isotopes of 12C, 13C, and 14C, other isotopes are obtained by artificial nuclear reactions.

But in his case, apart from artificial nuclear reactions, there are other ways to manufacture carbon artificial isotopes.

Such as carbon-16, which is a radioactive synthetic carbon isotope.

It is generally used as an analysis method for toxic substances, such as testing smelting equipment, electric carbon products, concrete, aggregates, mortar, mortar, water environment, etc.

Of course, here in Won, the use of carbon 16 is far more than that. From the knowledge and information in his mind, he knows that carbon 16 can also be used as nuclear fuel for interstellar spacecraft, as well as medical radiation and so on.

Human beings use carbon-16 as the isotope for analysis and labeling, but they just take advantage of the common labeling and easy-to-check characteristics of all isotopes.

As for the production method of carbon 16, in addition to particle accelerators and nuclear reactions, there are also methods such as chemical synthesis and physical high-temperature synthesis.

In fact, the synthesis and manufacture of isotopes requires a huge amount of energy, and this is where particle accelerators and nuclear reactions play a role.

The synthesis of carbon-16 isotopes uses the characteristics of the light carbon atoms themselves.

Otherwise, ordinary chemical and physical reactions simply cannot convert carbon into its isotope.

After all, isotopes differ from ordinary elements only in the number of neutrons they have.

The energy required to remove or add a neutron from the nucleus is enormous.

However, using chemical and physical methods to dismantle or add neutrons takes advantage of the different physical properties of different elements.

If you want to talk about this basic principle, I am afraid it will take an entire book to describe it.

But if you briefly describe it, it is actually relatively easy to understand.

Just like the metal material cobalt, this material that can be used to make cobalt bombs or as a radioactive element in medicine has a terrible artificial isotope cobalt-60.

The preparation of cobalt 60 can be carried out by physical and chemical synthesis of cobalt ore.

The first is to put the cobalt ore into the immersion pool after crushing, first remove the impurities, and then cool the remaining material at a low temperature, and then freeze it at an ultra-low temperature after cooling.

The cobalt-containing material solidified after ultra-low temperature freezing is crushed and ground, put into a special reagent, and the cobalt is dissolved by heating.

The dissolved cobalt material is evaporated several times at high temperature, and each evaporation requires steps such as water washing, precipitation, temperature control, and cooling, and it also needs to be filled with a specific agent that converts the cobalt material into cobalt-60 ions.

After a series of complicated steps are completed, the separation is carried out, and then the cobalt isotope cobalt 60 can be obtained.

Although this method does not require nuclear reactions, the separation of the cobalt-60 isotope is a difficult problem.

Not only because cobalt 60 contains super strong radiation, but also because the content of cobalt 60 produced in this way is very low compared to the content of cobalt 60 produced by nuclear reaction.

At present, in human science and technology, the separation of cobalt 60 is generally performed by ultracentrifugation.

Cobalt-60 is separated by high-speed optional equipment similar to a turntable.

It is also the primary means of separating uranium-235, the material used to make nuclear weapons.

Of course, for South Korean Won, it is impossible for him to use this method to process and separate isotopes, which is too troublesome and takes too long.

In order to manufacture an atomic bomb, a country in the Middle East used 20 separators to separate uranium-235 non-stop day and night, but failed to purify enough material for half a year.

From here we can see the flaws of this approach.

If he separates uranium 235, there are many ways.

One of the fastest ways is a method known as Graham's law of gas diffusion.

This is a separation of gas isotopes using Graham's law of gas diffusion (Graham's law of gas diffusion).

That is, at the same temperature and pressure, the diffusion speed of various gases is inversely proportional to the square root of the gas density.

通过修建一条足够长的管道，这样就能把235UF6（六氟化铀235）和238UF6（六氟化铀238）分开。

This is a physical way to obtain key materials for atomic bombs and nuclear fuel for nuclear power plants.

What is used is the only stable gaseous compound of uranium, which is dismantled and separated through different temperatures and long pipelines.

If you build a pipeline long enough, you can separate enough uranium-235 material in one go.

Of course, this length needs to be more than [-] to [-] kilometers, which is about the same as the length of a large particle accelerator.

A country without a sufficient industrial base cannot build such a super project at all.

For Han Yuan, it is impossible for him to build such an isotope separation device alone.

But there is more than one way to separate isotopes, it's just that it's more efficient.

After dealing with the low-temperature fractionation of air elements, the time has come to midnight.

After cleaning up the laboratory, Han Yuan kept the various gases that were fractionated out, and then made some food.

After lunch at [-] o'clock at noon, he has not eaten for nearly [-] hours, and he is already hungry.

Coupled with the continuous concentration of work, the body already needs to be replenished. Fortunately, he has a good physical fitness and can hold on.

For ordinary people, it is normal to suffer from hypotension, hypoglycemia or even fainting from starvation.

After getting something to eat, Han Yuan stopped the live broadcast by the way. The eight-hour daily broadcast time required by the system task is nothing to him now.

Starting from the third-level mission, he basically broadcasts more than fourteen hours a day.

The moonlight was bright, and the breeze brushed against Won's face with some moisture.

The wings of his nose moved, and Han Yuan looked at the sky, knowing that tomorrow would be a rainy day.

Don't look at the bright moonlight now, but it won't be long before the sky will change.

This is the experience he has gained from living here for several years. He can know what the weather will be like tomorrow by looking at the sky and smelling the wind.

More accurate than the weather forecast, just like an old fisherman.

South Korean won does not mind rainy days, as long as it is not the kind of super bad weather such as violent storms or hail.

After all, this is a tropical place, even if it rains, the temperature is still quite high.

On the contrary, after it rained, some of the unpleasant smell caused by the experiment disappeared, and the air would be much fresher.

It's just that rainy days are an obstacle to the return of space shuttle zero.

After all, it rains, and when the landing process is close to the ground, the space shuttle will not be able to get enough sunlight. As a result, the gallium lanthanide silicon solar power generation panels will not be able to supplement sufficient power for the space shuttle.

For this situation, the South Korean won must have been calculated.

Not to mention the rain, even the hail, he has a corresponding plan.

It's just that the ground needs to be controlled and commanded to activate the corresponding preparation plan and preset commands.

The space shuttle itself does not have the ability to judge the weather. Although the dark clouds when it rains may interfere with the transmission of electromagnetic waves to a certain extent, it does not affect the operation.

For the rainy situation, the South Korean won naturally prepared a plan.

One is that when the space shuttle is lowered to the ground and close to the cumulonimbus cloud layer, it will stay in the sky for a period of time to replenish the electric energy in the energy storage lithium-sulfur battery before landing.

The other is to use an electromagnetic propulsion system.

This is a backup solution. If there is enough liquid xenon working fluid left, the electromagnetic propulsion system can also be used.

But this method will basically not be used, unless a super storm is encountered, and an electromagnetic propulsion system is needed to assist the space shuttle to stabilize its flight.

After all, the electromagnetic propulsion system consumes a lot of electric energy, and it is a difficult problem to land after it is activated.

There is not enough spacious and long runway in the base for the space shuttle to land. If it really comes to this point, I am afraid that the oil road leading from the river to the lake is the only way.

Han Yuan's prediction was correct. After he finished his dinner and entered the studio to record his work these days, the sky outside began to darken.

The originally bright and bright moonlight disappeared and was blocked by dark clouds from nowhere.

The breeze that passed by turned into a gale that rattled the leaves.

This is the prelude to rain.

Han Yuan sat in the studio and glanced at the dark outdoor, ignored the changing weather, put on his study medal and started his daily study.

It was about to rain outside, but it didn't affect him.

On the contrary, the sound of pattering rain sounds very peaceful.

In the early morning, Han Yuan woke up from his sleep.

After stretching, my keen hearing heard the sound of rain.

As soon as the curtains were drawn open, the big raindrops hit the concrete floor and splashed one after another.

Han Yuan glanced at the ground and then at the sky. The dark clouds still haven't dissipated. He frowned after seeing the relatively rare long-term fall today.

I thought it was just an ordinary rain last night, but judging from the current situation, the rain was brought by a typhoon and it may last for a day or two.

Although his current location is considered low and inland, there are several such continuous rainfalls affected by typhoons every year.

This kind of thing cannot be predicted without weather satellites, and it will have a considerable impact on the return of the space shuttle today.

Not only is it impossible to replenish power when it lands, but it may also happen that the space shuttle encounters a wind eye.

(End of this chapter)