Involving the army in the hunt for hares was a proposal that Arthur had never thought of.

But think about it. It is also training for soldiers to shoot fixed targets, and even more so to fight moving hares.

It is even more difficult to hit a hare than a fixed target, and it may be more conducive to improving the soldier's hit rate.

As for the consumption of some of the funds brought about by the large-scale organization of armies to hunt hares, it is not a matter for Australasia at the moment.

It also allows the army to conduct long-term training, first, to train the army's combat ability in various terrains, and second, to train the soldiers' marksmanship.

After thinking about it carefully and thinking that this method was feasible, Arthur did not hesitate.

Arthur asked William to go to the Ministry of Defense himself and ask the staff to make a plan to mobilize the army to hunt hares.

If the number of hares can be effectively eradicated, it will also be a merit and merit for William.

Of course, if you can't effectively destroy the hares, you can also train the army, and in short, there won't be much of a fault.

The reason why this matter was entrusted to William was that in addition to increasing William's prestige, Arthur also had more important things to do, that is, to inspect the progress of the nuclear weapons research project.

For Arthur, nuclear weapons are a weapon he dreams of, and an important means of ensuring the development and strength of Australasia.

As long as it can lead the world in developing nuclear weapons, the next gap in time when other countries do not have nuclear weapons will be the time for Australasia to use nuclear weapons freely.

After some of the more powerful countries possessed nuclear weapons, such weapons were more of a means of deterrence, not a more commonly used weapon.

Therefore, it is very important to develop nuclear weapons as soon as possible. If nuclear weapons could be developed before World War II, the rest of the war would have been much easier.

Especially in the face of a frenzied enemy like the island nation, Arthur can use nuclear weapons unscrupulously and without any psychological burden.

It may not be possible to completely eliminate this nation, but if it is only to eliminate this country, it can still be done.

When it comes to nuclear weapons, the process of making nuclear weapons is actually very clear. But for Australasia now, because it is an explorer and pioneer in nuclear weapons, it is actually more difficult and complicated to experience.

What's more, the development of nuclear weapons in the United States began in 1939, while the development of nuclear weapons in Australasia began after World War I.

The era of R&D is different, and the difficulty is also different.

When the United States was developing nuclear weapons, the relevant nuclear theories were already mature, and Germany was competing with the United States to develop nuclear weapons.

But now, the theory related to nuclear weapons is not yet mature, and other countries have not even taken into account the concept of nuclear weapons.

It is not clear that a certain element of uranium in uranium ore can bring great power and great benefits to people.

The development of nuclear weapons involves two very important steps.

The first is the extraction of the real raw material for the manufacture of nuclear weapons from a large amount of uranium ore, which is the famous uranium-235.

Don't think it's easy. You know, the content of uranium-235 in general uranium ore is only 0.7%, which is a fairly low figure.

If that were the case, almost all of the remaining 99.3% of uranium ore would be uranium-238, an element very similar to uranium-235.

The difference between the two is really not big, they also have 92 protons, and the only difference is that uranium-238 has a few more neutrons.

But the key to nuclear weapons lies in these neutrons.

The reason why uranium-235 can release huge energy is that after uranium-235 absorbs low-energy neutrons, it will also release two neutrons during fission, and the released neutrons are absorbed by other uranium-235, prompting new fission and releasing new neutrons.

In this way, a complete "chain reaction" is formed, and the energy produced by each fission continues to accumulate, which is why nuclear weapons are so powerful.

Uranium-238 is different from uranium-235, uranium-238 absorbs neutrons and forms uranium-239 with 147 neutrons, which will not release any matter or energy, so it silently swallows the neutrons, stays with uranium-235, and the neutrons go out and out, so it forms a balance.

How to distinguish two extremely similar elements and extract small amounts of uranium-235 from a large amount of uranium ore is the first task that the nuclear weapons research project team will carry out.

The current approach used by the Nuclear Weapons Research Project team in Australasia is the gas separation method.

To put it simply, the mass of uranium-235 and uranium-238 is also different because of the difference in neutrons.

After these two substances of different masses are converted into gases, the gases of different masses will slowly separate, sinking the heavier ones and floating the lighter ones.

In this way, it is easier to distinguish between uranium-235 and uranium-238, and to extract uranium elements that are truly suitable for nuclear weapons.

But this is only the theory put forward by Einstein and Oppenheimer, and there are still many difficulties in practice.

The first is how to gasify uranium ore.

It's not something that can be vaporized by simple heating. Uranium gasification requires a high temperature of 4,131 degrees Celsius, and how to achieve such a high temperature is a serious problem.

In addition, it is necessary to find a container that can withstand such high temperatures in order to preserve the gases after uranium gasification rather than allowing them to escape.

The heat wasn't sleepy, but the high-temperature materials kept the team looking for nearly a year.

In the end, Oppenheimer, who was new to the project team, proposed a plan to synthesize uranium compounds with lower boiling points after research and discussion with Einstein.

This can be regarded as a trick in disguise. Since it is impossible to find a material that can withstand the high temperature of 4100 degrees Celsius, it is better to reduce the temperature of uranium gasification and solve the problem in disguise.

In the end, after more than a year of searching by the nuclear weapons research team led by Oppenheimer and Einstein, it was finally discovered that uranium hexafluoride, a compound synthesized from fluorine and uranium, not only has few isotopes, but also has a low boiling point, which is theoretically a good substance to separate the two uraniums.

But then came the puzzle that plagued Einstein and Oppenheimer. How is uranium hexafluoride synthesized?

You know, it is very difficult to synthesize pure uranium hexafluoride, and if you are not careful, your life will be in danger.

This kind of experiment is not the usual trick, and the Grim Reaper will not joke with these scientists, let alone be surprised because of the importance of the project.

Uranium hexafluoride is very active and easily reacts with hydrogen in the air to explode.

Even if it comes into contact with a little water vapor, uranium hexafluoride can form a highly corrosive and highly toxic substance - hydrofluoric acid.

From this stage, the development of nuclear weapons becomes extremely dangerous and deadly.

Previous studies of uranium ore were only radioactive, and if the radiation protection is properly maintained, there is not much harm to the scientist's body.

But now it's different. If there is any mistake in the experiment, it is likely to cause a large number of casualties among the experimenters, which is also a huge loss for Australasia.

In order to protect state secrets from being leaked, these technologists working on nuclear weapons live alone in a small, secret city, surrounded by military protection.

These experts are selected to ensure that they are scientists who are loyal to the country and the royal family. They didn't flinch in the face of such a serious danger, and Arthur was very happy with their performance.

Naturally, Arthur will not be stingy with the loyal subjects of these countries. The first is the salaries of these scientists, who earn more than twice as much as the average scientist, and with bonuses, the income is definitely among the best in the whole country.

Secondly, for their families, the state also has corresponding policies to subsidize and protect.

All children of scientists, their education from primary school to university is free. Not only are all kinds of book fees exempted, but even tuition and miscellaneous fees are directly exempted.

This is also a demonstration to these scientists that Arthur cares about them. For these scientists who can give everything for the country, Arthur will also protect the interests and safety of them and their families at all costs.

After more than a decade, when Arthur returned to the city where the nuclear weapons research group was located, the development of nuclear weapons was in its final stages.

At present, the research team has successfully synthesized uranium hexafluoride and is separating as much uranium-235 as possible.

In fact, this also means that Arthur's long-awaited nuclear weapons will soon be born. With a sufficient amount of uranium-235, the team could use it to create a powerful nuclear weapon.

However, separating enough uranium-235 is also a huge challenge.

The current nuclear weapons research and development team has tried two methods, which are also the centrifugal method and the proliferation method that are more commonly used in the manufacture of nuclear weapons in later generations.

Centrifugation is the use of high-speed rotation of a centrifuge to separate gases of different qualities into different locations.

However, centrifuges for the production of nuclear weapons require centrifugal forces capable of generating millions of times the force of gravity, while also being as resistant to corrosion as possible, which is very demanding, and the centrifuges currently built by the research team cannot fully meet the requirements for producing large quantities of uranium-235.

Another method is diffusion.

It is very apt to the name, in fact, it is to let the gas diffuse quickly, and the speed of gas diffusion will be different depending on its mass.

When uranium hexafluoride is placed in a low-pressure container, the light gas is the first to diffuse, it is collected, and the process is repeated to purify enough uranium-235.

Although this method does not require too advanced instruments, the efficiency of purifying uranium-235 is slow.

Moreover, according to the calculations of Einstein and Oppenheimer, in order to create a reliable nuclear weapon, uranium-235 must be at least 80% pure, which also means that the two methods currently mastered by Australasia are actually not very reliable.

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(End of chapter)