On July 12, 1943, three projects, codenamed Y-12, X-10, and K-25, were being built at an accelerated pace in the Clinton Engineering District.

As a result, more than 10,000 workers are in full swing to build the high-rise buildings and factories needed for these projects, and to house the machinery and equipment needed for these projects.

These machines and equipment include Alpha Beta Separator Building, Cooling Tower, Chemical Processing Building, Control Room, Water Pump Room, and Steam Power Room.

In particular, the two large factories required for Y12, and the four brand-new alpha separators and a considerable number of beta separators, are also being developed and produced overtime.

Because these mechanical equipment were particularly important for the T-125 requirements of the 'Skinny' atomic bomb, Oppenheimer and his Los Alamos team needed several times more T-125s than they had anticipated.

Moreover, there are also a lot of tube alloys required for the atomic bomb, and as for giving a definite data, Oppenheimer can only give the answer of 10 factors.

And this number of 10 factors is not easy to understand, because it may indicate that the tube alloy needed is 10 pounds, or it may be 1000 pounds, so when Secretary of the War Stimson, and Deputy Secretary of the Treasury Daniel? Bell, and Kenneth, the chief engineer of the Manhattan Project? Nikl, and Major General Groves, who had succeeded Lieutenant Colonel Marshall as commander of the Manhattan Project, were also helpless, not knowing how many pound alloys to collect.

So they couldn't budget for the size of the factory, the machinery, and the number of laborers, so they could only end up with more than 1,000 pounds of tubular alloy just in case.

But these tube alloys, dug deep underground, were sent from Tennessee to Los Alamos Laboratories; They all need to be chlorinated, oxidized, purified, fluorinated, vaporized, weighed, dispersed, evaluated, and assayed.

Because when these tube alloys are sent by the contracted company, they are all from different forms.

They come in the form of oxides, metals, salts, and fluorides......

So getting 1000 pounds of tube and gold is not a quick thing to do, and the most important reason why these tube alloys are needed is to separate tube alloy 238 from tube and gold 235.

Because the key to the success of the atomic bomb is to distinguish the tube from the gold 235 and the alloy 238, especially the T-235 needed to separate the atomic bomb and use it as the fuel for the atomic bomb.

And these rare T-235 isotopes, 1000 pounds of tube alloy can be extracted and separated out of about 7 pounds.

Therefore, if you want to produce a large number of atomic bombs, then you must first successfully possess a large number of T-235s to use as fuel for atomic bombs.

For this reason, President Roosevelt was willing to spend a lot of money and approved the Manhattan Project to build three large factories in the engineering area, skyscraper-like cooling towers, beta separators, and alpha separators for enrichment tube alloying.

And there is also a need for nuclear reactors like the X-10, and electromagnetic separation plants like the Y-12.

But President Roosevelt was not at all concerned with the construction and equipping of these complex equipment, and how to extract and isolate more T-235 isotopes.

Now his main concern is how to have the super trump card of the atomic bomb to deal with the German army in the shortest possible time, or to resist the attack of the German army's increasingly diverse new weapons and equipment.

So when he made up his mind to come to New Mexico and other places to observe the development process and progress of the atomic bomb, and to meet with Oppenheimer and others to discuss how to speed up the development of the atomic bomb, he asked Secretary of War Stimson to arrange a plane for him to go to the Manhattan Project site with the escort team that night.

In addition to Secretary of the Army Stimson, Major General Groves, and Bush, one of the leaders of US nuclear research, he was accompanied by Deputy Secretary of the Treasury Daniel and Kenneth, the chief engineer of the Manhattan Project.

The next day, however, a southbound train was in high spirits, with a whistle blaring, and was heading towards the mountains of Tennessee.

And on this train sat a very beautiful mixed-race girl, who was in her bunk, quietly staring out the window at the passing scenes, thoughtful.

This young and beautiful girl, about 20 years old, is Chen Yanlong to make the new intelligence department director Karl ? Steiner, one of the thousands of chosen secret agents of the Manhattan Project to destroy the American army.

Her mission, like that of other German half-breed agents sent to the United States, was to do everything she could to infiltrate the Manhattan Strip of Manhattan that was part of the Manhattan Project's atomic bomb.

Laura's hair is blonde, and it is curly and wavy like those beautiful anime girls in later generations, which is very cute and charming, and people can't help but like it at first sight.

Especially Laura's pretty face, good-looking little dimples, and very smart eyes, make people like her without much resistance.

However, for her to have such a stunning face, it may not be all a good thing, because it is often easy to cause a lot of unnecessary trouble, such as inadvertently attracting a lot of boring or ill-intentioned suitors to come and hinder her from carrying out the task.

To this end, Director Steiner also sent a girl with a freckled face, an ordinary appearance, and not at all conspicuous; and an equally ordinary brunette man who can no longer be ordinary, come to help her complete the Manhattan Project to destroy the American army.

It's just that the two of them didn't live in the same box as her, but lived separately in the next box, because they didn't want others to know that they knew each other, at least until they arrived in the Manhattan Engineering District, they would never be able to reveal that they knew each other.

The exception is another secret agent, Mersall, a 35-year-old man who had infiltrated the Manhattan Engineering District early in the morning, and was one of the recruiters for the U.S. military's foreign recruiters to Manhattan.

"What are you thinking? Thinking so fascinating! ”

As Laura was in a trance, Mesall suddenly walked into his box and smiled.

"I'm wondering why humans are making these weapons so dangerous, and why they always love war!"

"Isn't it good to have a peaceful day? Is it necessary to continue aggression and massacres? ”

Seeing Mesall, who was strong and looked like a good old man, Laura said coldly.

"These questions are too serious, and I don't like them! So let's ask another question! Or we can talk about how we can work together to accomplish our mission once we reach our destination, or you can listen to me now and tell us about our destination. What do you think? Miss Laura! ”

Mesall shook his head, his eyes sharpening in response.

"Sorry! Mr. Mesaure! I don't like the questions you just asked, I just want to know now that if I complete the mission, will you let my family go? ”

Laura was silent for a moment, then sneered.

"Yes! We are definitely people who keep our promises, unlike the SS and the Gestapo! In fact, now your family has come to the United States and is still settling down! If you're doing well, then I can arrange for your family to come over and meet the other person on your mission! ”

"How can we say that we are all of the same blood, all of German blood! Although you are now half-blood! ”

Mesall smiled very calmly.

"But I don't like a country that likes to invade other countries!"

Laura stared sharply at the other party.

"I don't like it either! But if this war is lost, then the fate of our country will also be miserable, with heavy casualties, whether it is soldiers or ordinary people! ”

"I'm sure you don't want your friends and relatives in Berlin, or even some of your family members who don't want to come to the United States, to suffer a miserable end. Miss Laura! ”

Metholl shrugged his shoulders and said nonchalantly.

Hearing this, Laura did not respond to the other party, but stared at the other party with cold eyes.

"Do you think our destruction operation can succeed this time?"

Then, Laura said coldly.

"It's an unknown question, and I have no way of answering you! But I can only tell you that if this mission is to be completed smoothly, then we must all be united, or we will kill ourselves! ”

"Because our destination is going to be the most heavily defended opponent in the United States, and the secrecy inside is super rigorous, we will die if we make the slightest mistake! There are absolutely no second chances! ”

Metholl's eyes flashed, and after a moment of silence, he said with a grim expression and a little worry.