A blazing sun hung high in the sky, scorching heat and light on every inch of the earth below. There is hardly the slightest moisture in the air, as if drought is the eternal theme here. Thousands of miles of wasteland and yellow sand are long, like valleys and mountains, and you can't see the end of this sea of sand at all. Occasionally, when a strong wind blows, countless fine sand sand rises like a fluff in the sky, and the endless desert also waves like the waves, and finally presents a completely different appearance from the scene before the wind rises.

This is a desert in German West Africa, deep in the Sahara Desert, which runs through Africa. Due to the harsh environment, even the most endurable desert plants have been extinct in this area, and the sun rises and the moon sets, as if they have been abandoned by God. On May 20, 1938, however, it welcomed its first visitors in decades. A large team set up camp on the outskirts of the desert dozens of kilometers from the center of the desert, the roar of various vehicles continued throughout the night, and the sentry posts and observation posts were set up one after another, all the way to the heart of the desert in the barren land. In the past few days, the relevant staff have frequently entered the depths of the desert and set up various measuring instruments at the predetermined location in the cool night; Under the shroud of moonlight and starlight, they can be seen busy everywhere.

A week ago, when Ekman reported that the "Divine Fall" project had achieved decisive results, Qingying, who was excited, immediately issued an order to conduct the first C nuclear test. Although this would cause Germany to waste a valuable nuclear bomb, the actual operation of such a national weapon must also be carried out with prudence in the first place: if the explosion fails due to some technical error, the damage caused by it is undoubtedly unacceptable to Germany. Furthermore. German scientists also need to pass the guò test to measure some of the crucial numbers jù. In order to continuously improve such weapons. in another plane. The major powers with nuclear weapons have carried out a large number of nuclear explosion tests in the early exploration, and the explosion of the "Big Ivan" with a 50 million tons of TNT equivalent is even more extreme; Neither would they have stopped doing so if it were not for the constraints of a nuclear-test-ban treaty.

In order to witness this historic moment, Qingying flew for eight hours on a four-engine transport plane before arriving near the test site in West Africa. As soon as she stepped out of the cabin, the scorching temperature hit her face like a wave, which made Qingying, who was used to staying in Charlottenburg Palace, feel extremely uncomfortable. However, his whole mind was no longer on this harsh climate. When a huge and chubby bomb appeared in front of Qingying's eyes under the loading of a flatbed truck. His mind couldn't help but tremble slightly: five years of waiting and a huge investment of 4 billion marks had finally been cast and embodied in this huge object weighing 4 tons.

"Your Majesty, this bomb codenamed 'Evil Dragon' is the first nuclear weapon we have built, and it is also the first energy source in the history of human civilization after solar energy." A man with a good face stood in front of Qing Ying, and introduced to the monarch in front of him with a proud face, "It has an implosion-like structure, 32 pieces of highly enriched uranium-235 of equal mass, together with high explosives, are evenly arranged around the central chamber; As soon as the synchronous detonator fuse is activated, dozens of pieces of highly enriched uranium-235 will converge towards the center under the strong impact of the explosive explosion, and in an instant it will greatly exceed the critical mass. Trigger a chain reaction. And in order to increase the utilization rate of nuclear fuel, we have adopted a reflective layer around nuclear fuel. A neutron emitter is also set up next to the chamber: it is capable of emitting a large number of slow neutrons at the same time that uranium-235 is compressed to the center, prompting further intensification of the chain reaction. In this way, even if the fused nuclear fuel is re-washed due to the enormous energy released by the chain reaction, the slow neutrons provided by this neutron emitter can make the neutron appreciation coefficient of some scattered highly enriched uranium-235 exceed 1, thus returning this part of the nuclear fuel to a critical state. ”

Qingying nodded in satisfaction, her eyes full of undisguised joy. Compared with the "Little Boy" uranium bomb dropped by the United States on Hiroshima, Japan, the "evil dragon" currently created by Germany is a whole grade higher in terms of detonation techniques: the gun detonation of the little boy, which compresses one piece of uranium onto another, not only takes a long time to fuse, but also does not have any neutron-replenishing reflector and slow neutron launcher around the nuclear fuel, which results in two pieces of highly enriched uranium being separated at the touch of a button, and the fuel utilization rate is less than 2%. And under its own promotion, Germany's nuclear bomb adopted a more reasonable detonation method and structure from the beginning, which will certainly make the power under the same charge far exceed that of its American counterpart on the other plane.

"Dr. Heisenberg, what is the kilogram charge of this bomb, and what is the expected fuel utilization rate and yield power?" Qingying looked directly into the eyes of the man in front of him and asked.

The handsome man known as Heisenberg did not dare to slack off, and immediately replied respectfully: "Your Majesty, we have equipped this nuclear bomb with 30kg of highly enriched uranium-235, mainly due to the large critical mass of this substance, even if we have set up a neutron reflector layer in the bomb, we must have enough raw materials to ensure the scale of its chain reaction." It is estimated that the bomb is expected to have a fuel utilization rate of 10% and an explosive yield of 45,000 tons of TNT, and if it were dropped on a city of the size of Munich or Frankfurt, the entire city would be wiped off the face of the earth. Speaking of which, this supergenius, who won the Nobel Prize in physics at the age of 31 and pioneered the field of quantum mechanics, could not help but have a sincere admiration for the monarch in front of him. Even in such a difficult front-line scientific field, the emperor can still have the knowledge and attainments to keep up with the trend, and make targeted inquiries based on his own professional explanations, which is already an extreme exaggeration for him who rules the entire empire and has every opportunity in every day!

"30kg of enriched uranium...... Qingying muttered in a low voice, feeling a slight pain in her heart. The most difficult part of building a nuclear bomb is the enrichment of uranium-235, which not only consumes thousands of tons of rare uranium ore, but also untold amounts of electricity in order to separate these creatures from its isotope uranium-238, which contains only 0.7% of the natural content, and repeatedly purify it to more than 90%. After more than two years of refining, the current high-enriched uranium obtained by the Guò gas separation method in Germany has not exceeded 70kg, and now nearly half of the test has been used at once. Seeing Qingying's expression, Heisenberg hurriedly added: "But next time, we will use plutonium-239 as the raw material for the nuclear bomb." This substance is produced by decay in a controlled nuclear reactor and is far easier to separate than uranium-235; More importantly, nuclear reactors only need uranium fuel rods with a purity of 2~3% to maintain operation, which means that we can greatly reduce the input to obtain nuclear bomb raw materials. In addition, since the critical mass of plutonium-239 is only about one-third that of uranium-235, the threshold of raw materials for the manufacture of nuclear bombs is greatly reduced. In the next month, we will be able to build two plutonium bombs, and if we add the remaining enriched uranium, we will have a total of three nuclear bombs that can be used in the current war. ”

When Heisenberg, the person in charge of the No. 2 project of the "Divine Fall", finished his introduction, Qingying and a group of test personnel immediately walked into the underground shelter. Even though the test center was 40 kilometers away, the blast waves from the blast swept through the area, and for safety reasons, the test personnel had to stay in the bunker and observe the explosion with the help of artillery mirrors sticking out of the ground. Various instruments and instruments for measuring wind speed, radioactivity intensity and other parameters have long been installed in place, ready to collect the number at any time; The soldiers in charge of the guard also began to clear the scene, driving all the unrelated personnel to the perimeter of the base.

In the depths of the desert where the wind and sand are raging, the convoy carrying the "evil dragon" has arrived at the intended location. Technicians and soldiers wearing sand masks carefully unload the nearly 4-ton creature from the truck, load it into a recently erected steel tower, and mechanically lift it to the dome of the steel tower 50 meters above the ground. Unlike ordinary bombs, in order to give full play to the power of the shock wave generated by the explosion, nuclear bombs are usually detonated in the air at a certain height above the ground; If it weren't for the difficulty of erecting a stable steel frame in the desert, the towers used in this test would have been at least 100 meters high. After doing all this, the convoy flew away from the scene like a murderer who had just robbed a bank, fearing that he would be one of the first guests invited by the "Super Grim Reaper". The twilight melts gold, and the sun sets in the west. The towering towering towers and chubby bombs at the top bathed in the last rays of the sunset, reflecting the vast desert, even more desolate and magnificent.

The red sun is hidden, and the moon appears in the sky. Due to the extremely dry climate, the night sky in the desert area is cloudless, and the stars and moon are gathered; Except for the dust that rolls up from time to time, it can be called the most ideal star dome. The hot and dry air temperature gradually cooled down and gradually recovered to a cooler time: according to the plan of the German technicians, the bomb was to be detonated in the early hours of the morning before sunrise, because the temperature at that time was most representative of the usual level in the rest of the earth, and the number obtained after the explosion would be the most reliable.

At 3 a.m. on May 29, the entire underground shelter was already in a grim and tense atmosphere, and both pairs of expectant or uneasy eyes were cast on the remote-controlled manipulator in front of Heisenberg. When the last-minute countdown was over, Heisenberg pressed the button that opened Pandora's box, and for a moment it was as if time had stood still...... (To be continued......)

ps: Thank you for the book friend pigeon model, 46 monthly pass support, and 4 eye ♂ disease cats, zhouyu1976 for the reward~~~

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