The U.S. War Department's program to develop an atomic bomb using nuclear fission reactions, also known as the Manhattan Project, began in June 1942. In order to build the atomic bomb before Nazi Germany, the project gathered the best nuclear scientists in Western countries (except Nazi Germany) at that time, mobilized more than 100,000 people to participate in this project, which lasted three years and cost 2 billion US dollars, successfully carried out the world's first nuclear explosion on July 16, 1945, and built two practical atomic bombs as planned. The whole project was a complete success. During the execution of the project, the responsible persons L.R. Groves and R. Oppenheimer applied the ideas and methods of systems engineering, which greatly shortened the time spent on the project. The success of this project contributed to the development of systems engineering after the Second World War.

And when it comes to the "Manhattan Project", we can't help but mention Oak Ridge. Oak Ridge gets its name from the Black Oak Ridge Valley, which is 16 kilometers long and 3.2 kilometers wide. During World War II, Germany tried to preemptively develop nuclear weapons. Today, in the American Museum of Science and Energy, a letter from Albert Einstein to President Roosevelt on August 2, 1939, is on display. The letter indicates that several American scientists have suggested that the discovery of nuclear fission could lead to the possibility of building an atomic bomb. In order to build the atomic bomb before Germany, the United States launched the "Manhattan Project" in 1942, and the main location of its plan was Oak Ridge.

In order to carry out this top-secret nuclear weapons manufacturing program, the United States carried out resettlement, relocation, construction and scientific research in Oak Ridge, and in only about a year and a half, this barren valley was home to 75,000 people, making it the fifth largest city in Tennessee. According to the Manhattan Project, the United States has built three nuclear facilities at Oak Ridge: the facility codenamed "Y-12" is mainly used to separate uranium-235; The facility, codenamed "K-25", separates uranium-235 in a more economical way by means of a very large-scale facility; The facility, codenamed "X-10", is a graphite atomic reactor. For a long time, the staff here were completely isolated from the outside world, and the vast majority of the staff did not know the ultimate purpose of the work they were doing.

Oak Ridge translates "Oakrij". It is located in the Cumberland Mountains of eastern Tennessee, USA. During the Second World War, the first uranium separation plant and related scientific research and experimental institutions were built here. The atomic bombs dropped by the United States on Hiroshima and Nagasaki in Japan were developed here. At present, the Oak Ridge Research Institute is engaged in research on nuclear energy and nuclear physics. There are also atomic energy research facilities and the U.S. Atomic Energy Museum, where 45 universities work together.

"Report, Mr. Hans asks to see you!"

"Let him in," Wang Hanzhang said.

"Your Majesty the Emperor, it's been a long time!" Hans came for a while and also had the humility of the Chinese.

"You may be seated!" Wang Hanzhang could probably guess the purpose of Hans's coming, but he just didn't take the initiative to say it. After Hans sat down, Wang Hanzhang asked people to serve tea.

Hans said: "The industrial construction of your country is very gratifying, and your people are the most industrious people I have ever seen. ”

Wang Hanzhang smiled slightly: "Thank you, are you still used to living here?" ”

"It's so good, there's delicious oriental food, and there's also western food, and I almost don't want to work. When the war is over, I must stay in the Qin State for a few years, you have too much food, you eat 5 dishes a day, and I don't know how long it will take to eat all the dishes. ”

Wang Hanzhang said: "You can try it, I also want to know." ”

Hans laughed a few times and said, "Your Majesty, can you tell me the big secret you said before?" ”

Wang Hanzhang smiled and said, "Of course." ”

"Then please ask His Majesty the Emperor to speak! Listen to me in the next wash. Wang Hanzhang laughed, this Hans also learned to use idioms.

After laughing, Wang Hanzhang turned to the topic, Wang Hanzhang said: "The secret I want to talk about is about the situation of US nuclear weapons, that is, the atomic bomb, have you heard of it?" ”

Hans chuckled in his heart, of course he knew about atomic weapons, but he didn't expect that Wang Hanzhang also knew this, and he also knew about the development of atomic weapons in the United States. Hans studied Wang Hanzhang before, and found that Wang Hanzhang was indeed very powerful, there was no one to ask for people, no money to ask for money, and it was only a year of hard work to seize part of Burma from the mouths of Britain and Japan to India, and now it has taken over from the Chinese expeditionary force, and the key is that no one has objected yet.

And the officers under Wang Hanzhang are basically from the original expeditionary force, within a year to cultivate contacts, to train the army, to make money, to seize administrative power, everything needs to be done together, normal people are difficult to do, Hans can't help but admire Wang Hanzhang, why so many people on the earth, it is Wang Hanzhang who is the emperor, this is not luck, but hard work and strength.

When Wang Hanzhang talked about the US atomic weapons, Hans never thought that Wang Hanzhang was deceiving him, and Hans believed that Wang Hanzhang must have mastered the US atomic weapons. Hans felt that he was about to come out, although Germany's assistance to Qin was not a small price, but Germany also obtained a large amount of oil, and now it has obtained the development of nuclear weapons in the United States, which is very fortunate for Germany, and it can know itself and the enemy.

Hans said, "I know a little bit. "It's not appropriate to say you don't know.

Wang Hanzhang said: "As far as I know, when your country was expelling Jews, a large number of Jews went to the United States, and a large number of scientists, such as Albert Einstein, after they fled to the United States, they united many scientists to write letters to Roosevelt hoping to develop nuclear weapons, and hoped to develop this kind of weapons before Germany, so as to prevent your country from possessing nuclear weapons to control the world. You know that your anti-Semitism has made the Jews very afraid of Germany, and they fear that German control of the world will be the end of the Jews. And the United States is a country controlled by corporations, and the consortiums that control the US government are Jews. ”

"The Jews have a very strong advantage in this regard, and given the industrial capacity of the United States, and the fact that the homeland is far from the war, they can develop with peace of mind, and I personally think that the United States should be able to complete the development in a very short time. I don't know about the development of nuclear weapons in your country, but if your country lags behind the United States, then the German army will be absolutely vulnerable in the face of a nuclear weapon that can blow up Berlin, and Germany will face annihilation at that time. The European countries will not give Germany a second chance to rise, and I am afraid that Germany will be divided into many countries, like Germany before 1870. ”

Hans said: "Your Majesty the Emperor, let's tell me what you know about the development of nuclear weapons in the United States!" ”

Wang Hanzhang continued: "According to my intelligence, although the United States started late, the United States has gathered more than 100,000 or 200,000 scientists to study together, and for this purpose he has also built a small city, which is located in the Cumberland Mountains in eastern Tennessee, west of the city of Noxiville. ”

"The person who developed nuclear weapons in the United States is called Groves, and we found out about these, but this Groves's secrecy work is very good, because the amount of work is very huge, so everyone is responsible for a little bit and does their own thing, so many people are actually developing nuclear weapons, but they don't know it."

"It is estimated that the United States should know about the president of the United States, and that Marshall should also know, and there are not many other people who know."

Hans said: "His Majesty's information is very important, I don't know how you know it. ”

Wang Hanzhang smiled and said: "This is going to be kept secret, but your two countries can now be said to be grasshoppers on a rope, if Germany is defeated, although this country is not your ally, but the British will definitely attack their country after defeating Germany, so my country and I very much hope that Germany can win this war." You can use this information to investigate, find them, and destroy them. ”

Hans said: "We know this, of course, but I'm afraid it's not that easy. ”

Wang Hanzhang said: "That's right, if your country can end the European war as soon as possible and then attack the United States, I'm afraid the United States will not have the energy to develop nuclear weapons." ”

Hans laughed dryly to show that he did not think that the current situation could end the war so quickly.

Wang Hanzhang said: "Mr. Hans, although our country is currently unable to give you any practical support except for intelligence, I think that as long as your country fully assists our country, we can drive the Japanese out of the Asian continent as soon as possible, and then we can recapture the population, and then flank Soviet Russia with your country." You know that Soviet Russia occupies millions of square kilometers of our land by various means, and if we have the opportunity, we will definitely take it back. ”

"But Japan has no such situation, so your country cannot count on Japan's eastern front to attack, unless Japan defeats China and its own country, and drives the Americans back to their homeland, and completely controls the western Pacific and the eastern Indian Ocean, otherwise I don't think they can risk attacking Soviet Russia."

"Judging from the current situation, it is no longer possible for Japan to win, not only can Japan not help the United States, but China and its own country will not be able to defeat it, and it will not be long before we will counterattack, and I believe that by the end of next year, we will be able to recover most of the territory. If your country is willing to vigorously assist us, we will be able to get the Japanese out of China more quickly, and with advanced weapons and equipment, we will also have the ability to fight against the more well-equipped Soviet Russia, when the time comes, the Soviet Russia will face a two-front war, the Far East and Central Asia will not be their big rear, but they need a large number of troops to fight with us, even if we can't occupy these places for a while and a half, we can send a large number of planes to bomb, those industrial facilities will also be destroyed, no matter how many Soviet Russians there are, there will be no weapons and ammunition, Surrender is a matter of time, when the eastern front of your country will be completely secure, we will no longer face a two-front battle, and we will be able to recover the territory that we have been forced to cede out. ”