The expected scene of a fight between love rivals did not appear, and the boys watching on the playground couldn't help but feel a little uninterested. As for the girls, watching Ouyang Yun walk towards the office building, they felt that his not-so-tall figure suddenly became clear - no one felt that he
This is the performance of a coward. On the contrary, it adds a lot of charm to him as a mature man. Many people can't help but bite their lips, and in a daze, they have the secret of summer.
When Ouyang Yun scanned the crowd just now, he didn't find any trainees from the Special Service Brigade. He was very relieved. At this time, they should still be in the laboratory, right? It's embarrassing to say that, after all, he only knows some theoretical knowledge, and his practical ability is worse than On the contrary, they are not as good as those students. Things like cultivating the original strain of penicillin can only be left to them - this is the tragedy of plagiarists, they are just pseudo-experts, looking at things that are useless!
The current main scientific research projects of the Special Service Brigade are transistors and penicillin.
Historically, the transistor appeared on December 23, 1947. It was first invented by the Shockley team of the famous Bell Labs in the United States, and then quickly replaced the position of the electron tube in the electronics industry, thereby creating the modern electronics industry.
Milestone. The so-called transistor is a solid electronic component made of semiconductors. The most common applied materials are germanium and silicon. Since both germanium and silicon exist in natural substances in chemical states, high-purity germanium and silicon do not exist.
The first step in a group of students' research is to find a way to purify germanium and silicon from substances such as soot and silicates.
The production of penicillin, that is, penicillin, can only produce natural penicillin based on the conditions that Ouyang Yun can currently use. To achieve mass production of penicillin, there are no more than two steps: the first is the fermentation of the bacterial strain: the production of yellow penicillin
The mold is inoculated onto a solid medium and cultured at 25°C for 7 to 10 days to obtain a Penicillium spore culture. Then use sterile water to make a suspension of the spores and inoculate it into the sterilized medium in the seed tank.
Pour in sterile air, stir, and incubate at 27°C for 24 to 28 hours. Then inoculate the seed culture liquid into the sterilized culture medium containing phenylacetic acid precursor in the fermenter. Pour in sterile air, stir, and incubate at 27°C for 24 to 28 hours.
Cultivate for 7 days at 27°C, add phenylacetic acid precursor and an appropriate amount of culture medium during the fermentation process. Then extract and refine: cool the penicillin fermentation liquid and filter. The filtrate is in the extraction machine under the condition of pH 2~2.5.
Internally use butyl acetate for multi-stage countercurrent extraction to obtain butyl ester extract, which is then transferred to a buffer with a pH of 7.0 to 7.2, and then transferred to butyl ester. The butyl ester extract is decolorized with activated carbon and added into
Salt agent, penicillin G potassium salt can be obtained through azeotropic distillation.
Since Ouyang Yun's so-called mass production method of penicillin was plagiarized, it is a relatively modern production method. In China, due to the weak chemical industry foundation, such as butyl acetate and phenylacetic acid must be imported, so they must find ways to find other methods.
Replaceable culture medium and extraction liquid - this is one of the reasons why Ouyang Yun wants to start a chemical company.
Speaking of the military industry, Ouyang Yun originally planned to plagiarize some designs and try not to be too advanced. It was best to be super affordable and easy to build. China's current industrial strength is like this. Although he wears the hat of an American overseas Chinese, but
Who knows what the surrounding countries will think if something like the Su-27 suddenly comes out. The so-called big tree attracts the wind and attracts eyeballs, which may not be a good thing. As for small arms, he originally wanted to get some AK-47s.
Rifle grenades were enough, but after reading too much computer information, he found that there was a firearm more powerful than the AK-47 at about the same time, and that was the G3 automatic rifle launched by the Federal Republic of Germany in 1957. Compared with the AK-47, the G3 not only has a range
It is about 100 meters away from the front, and because stamping parts are generally used and there are relatively few machined parts, the production process requirements are not high. More importantly, since the G3 has a longer barrel and a caliber of 7.62MM, it is slightly based on this.
With additional improvements, a variety of gun types including submachine guns and sniper rifles can be derived.
In terms of machine guns, Germany's MG42 general-purpose machine gun is naturally the first choice. As long as the ammunition supply method is changed, it can not only provide main fire cover for squads as a light machine gun, but also provide important fire cover for large units such as battalions and companies as a heavy machine gun.
Fire support. What's more valuable is that it can also hit armored vehicles and tanks to become a vehicle-mounted machine gun. If the two guns are combined, it can also become an anti-aircraft machine gun.
Since the current domestic army generally lacks air defense weapons, if this kind of machine gun once reaches a large scale, given the arrogant and domineering habits developed by the Japanese aviation forces on the Chinese battlefield, it is estimated that once the Peking-Tianjin war begins, the MG42 will definitely become a nightmare for Japanese pilots.
The only problem is that since the G3 uses 7.62MM caliber bullets and the MG42 uses 7.92 caliber bullets, solving the problem of the versatility of the bullets has become an issue that the three groups of students must consider. Since Ouyang Yun provided the drawings,
So the three groups of students quickly made models out of wood, and then used the ideas provided by Ouyang Yun to design light, heavy and double models based on a single MG42. Ouyang Yun gave them the MG42 drawings
It is a single gun. The reason for doing this is to cultivate their manual and mental abilities. The MG42 has changed from a light machine gun to a heavy machine gun. The only change is the ammunition supply method. To become an anti-aircraft machine gun, it only needs to be twinned and equipped with anti-aircraft weapons.
A sight is enough. However, since the anti-air sight involves the problem of deflection, the corresponding data must be obtained through actual experiments, so for a while, the students could not come up with a specific plan.
The Special Service Brigade is Ouyang Yun's treasure, and its importance in his heart is no less than that of the computer that traveled through time. Therefore, its security work is what he has always emphasized. He came today to check the security situation, and to check the security situation.
Three groups of students took him to Renqiu.
Speaking of which, Stuart is a really good old American. I don’t know if it’s because he has stayed in China for a long time. He doesn’t have the inherent stiffness of Westerners. He not only allocated a small building as a residence for the Secret Service Brigade and security forces, but also gave it to them.
A training venue was arranged. These places, including the laboratory, were all controlled by Hu Tong and the Renqiu Special Police Squadron, and outsiders were not allowed to enter. Ouyang Yun had just appeared twenty meters outside the door of the experimental building, and a Hu Tong trainee came from
Standing up from behind a tree, he said instinctively: "Please stop..." Before he could finish his words, he saw clearly that it was the brigade, and he hurriedly saluted and said: "Reporting to the brigade, Fox-Tong Soldier Hou Jiaqiang is on duty! You are going to
Laboratory building?”
"Yes!" Ouyang Yun responded with a military salute and took out his pass.
Hou Jiaqiang took it and looked at it carefully before putting him in.
Ouyang Yun admired Hou Jiaqiang's serious and responsible attitude, and felt a little proud, thinking that he looked like a regular soldier. Then he passed two more sentries before entering the laboratory.
The Yanda laboratory is a two-story building with three rooms. Originally there were only two laboratories. One of the other rooms was used as a warehouse, and the other three rooms were vacant. After the rearrangement of the special service team, one room became a security guard.
The laboratory became three rooms, and one was a conference room.
Ouyang Yun first walked into the mechanical laboratory of the third group. Several students were debating the issue of bullet diameter around the MG42 and G3 models. He listened quietly for a while and saw that everyone finally reached an agreement that the G3
It would be better to change the bullet diameter to 7.92. He smiled and said: "Yes, as a machine gun, especially for anti-aircraft guns, if the bullet diameter is too small, the impact effect will be greatly reduced. But have you considered this? Aircraft are made of steel or alloy.
Can ordinary bullets penetrate it?"
Only then did the students notice him, and many of them shouted in surprise: "Travel seat?" and then saluted one after another.
Ouyang Yun returned the military salute, then picked up the MG42 model with a smile, played with it for a while and said, "It's not bad. Who made it? The carpenter's skills are good."
Everyone looked at Gao Tian, who rubbed his head and said with a silly smile: "My dad used to be a carpenter, and I learned a little from him."
"Bring the model and follow me back to Renqiu. Our military factory is about to start."
"That's great!"……
Ouyang Yun chatted with them for a while, asked them to go back to the dormitory to pack their luggage, and waited for him to ask them to go back to Renqiu together. Then he went to the laboratories of the first and second groups on the second floor, visited the students of the other two groups, and
I checked the progress of their experiment. Since they were in an unknown field and there was no precedent for reference, most people were looking through the information. However, the second group of corns used as culture media were still intact.
He knew that this matter could not be rushed, and he had no good ideas for reference. He gave them a few words of encouragement, and then went downstairs to the principal's office to see Leighton Stuart.
The old American man really helped him a lot. He came to see him, firstly, to thank him in person for the special service team, and secondly, he wanted to ask him to help him apply for a visa.
Originally, the Americans did not set up a consulate in Peking. For visa matters, Jiang Shuren went to Nanjing with a letter of certification issued by Leighton Stuart. However, due to changes in the inspection team, many of the businessmen withdrew from that trip.
The visa was in vain. Now, due to Song Zheyuan's instruction, the gang forces in Pingjin and Tianjin began to adopt some "road" methods against the Japanese; and through the efforts of Jiang Shuren, an iron ore screening plant was opened in the Yidong area.
A steelmaking plant was built in the southeast of Renqiu. Coupled with the role models of Gu Xudong and Shang Lang, the inspection team added new blood, and finally the trip could be made. Fortunately, just a few days ago, the Americans actually opened a consulate in Peiping.
, in this way, the visa will be much more convenient.
This move by the Americans is somewhat strange, and has even aroused the imagination of many politicians. You know, the 29th Army is now clearly a local government, and Peiping is equivalent to the "capital" of this small kingdom, where the Americans set up consulates
What is the real intention? If someone is lucky enough to know George and Robson, the two American spies, then it may not be difficult to find the answer; of course, it may also be related to Gu Lianyun.
Ouyang Yun didn't think so much. This was a good thing. With Stuart's relationship, it would be much easier to apply for a visa.