Since the customer is interested, things will be much easier to handle. After a brief exchange, Yu Hua got an order for three portable lighting sources from the amiable and lovely girl Fang Yu.
Three in total!
As expected of the big customer I had booked, starting with three units, the price of 180 yuan is as light as one dollar and eighty cents.
With the support of three light source orders, Yu Hua was determined and without much delay, he agreed to bid farewell to the young rich woman Fang Yu and Zhou Yuan directly after delivering the equipment over the weekend.
Zhou Yuan, who was still in his position not far away, shook his head slightly. He came back to his senses and went to sort out his English notes. Regarding the sale of portable lighting sources, after collective discussion in the dormitory, it was decided that Yu Hua would be responsible for it. He did not
worry.
Moreover, to be honest, Zhou Yuan doesn't care much about the portable lighting source business. His family is wealthy and he has never cut off his daily living expenses and pocket money.
I got involved in Yu Hua's project just to join the group.
Well, now I have a little more reason to help my friends.
…
Leaving the classroom again, Yu Hua took his things and happily embarked on a journey to the cafeteria to eat.
The project of selling light source systems is basically stable, and Sanbai Ocean is waving to him from afar.
Feeling happy and comfortable, Yu Hua felt that he could eat four multigrain steamed buns and two bowls of clear radish soup today.
The reality is so cruel. Yu Hua, who has not experienced the running and hard work of 996 in later generations, will still be busy for money after returning to this era, just like 007.
Essentially, Yu Hua does not need much money. In the future, he will go to the United States to study, and the money will be enough. But for now, Yu Hua finds that he needs a lot of money in a short period of time.
Life requires money, study requires money, and scientific research projects require even more money.
Putting aside life and study, if he wanted to complete the scientific research project he had initially planned in his mind and produce nitrocellulose, nitroglycerine, and trinitrotoluene, Yu Hua estimated that he would need at least 5,000 oceans to support him in completing such a project.
As for the oxygen top-blowing technology listed as a long-term plan, the cost is even more prohibitive. It cannot be completed by oneself alone and must rely on the help of others.
This era is different from later generations. This is an era in which people unite to accomplish great things. One person cannot do it alone.
On the way to the cafeteria, Yu Hua counted down his current network of contacts.
After unremitting efforts and serious management since the beginning of the school year, there are now the little rich woman Fang Yu, the rich Liu Tao, the main supplier Ji Han, the well-known Cao Wei and Cheng Youping, Tan Qing who only has 30 yuan, and the boss Lin Wan
, these fairy classmates are relatively close to me, they may become my helper in the future, and they belong to the circle of classmates.
Zhou Yuan, who comes from a wealthy family and has excellent academic talent, has a close relationship with me. He is already considered a friend, not a simple deskmate. He belongs to the category of friends and is included in his circle of friends.
Xu Rui's brother and sister, Tang Yuanyuan, who are both fellows from Sichuan Province, are considered a close circle and worthy of trust.
There is currently no family circle.
In addition, it is worth mentioning that the 29th Army where Yu Qinghe belongs and Hua Luogeng belong to a network of people, the former involves the army, and the latter involves National Tsinghua University.
I need to work hard to manage the relationship with them. After arriving at Tsinghua University, I can form a temporary scientific research team and use the power of Tsinghua University to research oxygen top-blown converter technology. Before I leave, I can leave the greatest help to the motherland.
After Yu Hua counted them carefully, he pondered in his mind.
The Anti-Japanese War was about to break out, and the domestic environment left no opportunity for him to develop. But just like that, Yu Hua felt that he was ashamed of the knowledge he had in his head.
Trinitrotoluene, as a highly potent military gunpowder, has a wide range of uses. Whether it is used to charge the warhead of artillery shells or to charge conventional weapons such as mines and grenades, trinitrotoluene is required.
The comprehensive performance of black powder is too low and far from meeting the needs of modern battlefields.
The two brothers, nitrocellulose and nitroglycerine, mean single-base propellants and double-base propellants in the field of military propellants.
Single-base propellant, composed of nitrocellulose, can be used in the production of rifle bullets and machine gun bullets.
Double-base propellant, composed of nitrocellulose and nitroglycerin, can be used as artillery powder and mortar powder.
The above three professional technologies in the field of chemical engineering and explosives cover a very wide range. As long as they can be successfully developed, especially if they can develop a simple and cheap production process, they can significantly increase the combat effectiveness of frontline troops on the entire Chinese battlefield.
Looking at the anti-Japanese battlefield, whether it is the frontline troops fighting in the front or the Eighth Route Army and guerrilla troops active behind the scenes, except for a few elite troops who can receive foreign support, there is a shortage of weapons and ammunition.
Take the 29th Army stationed next door as an example. The development scale of the 29th Army has reached the level of 100,000 people. Most of the troops lack weapons and ammunition. Many soldiers can only use outdated weapons to fight the enemy.
.
Once the production technology of these three types of gunpowder is available, and relying on the knowledge stored in Yu Hua's mind, this disadvantageous situation on the battlefield can be greatly improved.
If nothing else, a mine loaded with at least one kilogram of trinitrotoluene, a powerful gunpowder, could easily destroy a Japanese tank.
The explosive power of a grenade filled with black powder and a grenade filled with trinitrotoluene are completely different.
Of course, Yu Hua deeply understood that these three technologies were actually of little significance to the orthodox domestic troops. After all, they had serious military factories, but they were extremely important to the Eighth Route Army who were active on the battlefield behind enemy lines.
However, Yu Hua did not say which party he was developing the technology for specifically. If the Nationalist Government needs it, then it will be given to them. If the Eighth Route Army needs it, it will be given to them in the same way, regardless of each other.
Putting aside the three recent modern gunpowder technologies, oxygen top-blown converter technology is the real highlight.
This is a cutting-edge technology developed for the whole of China. Once successfully developed, it will mean the beginning of the construction of China's heavy industry.
"Huh... come on, Yu Hua, you have no way out, you can only move forward, come on." After briefly sorting out the incident, Yu Hua, who was always in an optimistic mood, secretly encouraged himself, with a hint of determination in his eyes.
There are still five months left before the full-scale outbreak of the Anti-Japanese War. For him now, there is still a lot that can be done.
Now, for the sake of the future, I work hard to improve myself and...make money.
Become a glorious and emotionless money-making machine.
I quickly arrived at the cafeteria, squeezed through the crowded and noisy crowd, and queued up behind the queue in the cafeteria. The students around me were still discussing about portable lighting sources. The boring study life on weekdays made the emergence of lighting lamps
The source suddenly became the talk of many students.
"Hey, that light was so bright last night."
"No, it's really bright. I've been studying for two years and this is the first time I've experienced such a bright light in school."
"Have you heard? That lamp was made by a science student named Yu Hua."
"Awesome, this kid is not simple."
"Have you heard anything else? Yu Hua said that kerosene lamps are bright and dim, which can easily damage the eyes and cause vision loss. I didn't believe it last night. After lighting the kerosene lamp for a while, my eyes became extremely sore. It is indeed true."
"Does it really hurt your eyes?!"
"Of course, that's what Brother Cao and Brother Cheng said. If you don't believe it, you can try it yourself."
"It turns out that kerosene lamps can cause vision loss. My eyesight has increased to 600 degrees over the years. Even after wearing glasses, I can't tell the difference between humans and animals three meters away. It's a tragedy. It would have been better if I had known earlier. There are several electric lights in my home, but I just choose
I was proud to light the kerosene lamp, but now that I think about it, I feel as stupid as a donkey."
"Classmate, don't be like this. It's not too late to know now. After dinner, I'll go to Erjiaer and ask classmate Yu Hua if he sells that type of lighting source."
"My classmate is right, eat first and ask questions later."
"This classmate Yu Hua is really our savior. If he hadn't put forward this point of view, we would have suffered from the harm of kerosene lamps. We will never read under kerosene lamps in the future."
The students queuing up for lunch were talking a lot.
Glancing at the crowd calmly, Yu Hua had a smile on his lips, lowered his head and said nothing. After the team took his turn, he ordered four multi-grain steamed buns and a bowl of cabbage soup, finished them in three or two, and washed the tableware.
After finishing these tasks, Yu Hua went to the third-year teacher's office in the teaching building.
…
In the afternoon, the sun is shining brightly.
The teacher's office is located in the middle of the concave bottom on the third floor of the teaching building.
After Yu Hua arrived, the door of the office was already open. The interior was simply furnished, with a few desks and no one else. Mr. Luo Wenguang was sitting in the innermost seat on the right, holding a pen in his left hand and busy with his head down.
My husband is left-handed. Whether eating or writing, he uses his left hand.
"Dong dong!" Seeing Luo Wenguang there, Yu Hua breathed a sigh of relief. He thought no one was there, so he stood in front of the door and knocked gently.
"Please come in." Hearing the crisp knock on the door, Luo Wenguang, who was busy, immediately raised his head and looked at the door. When he saw it was Yu Hua, he shouted.
"Hello, sir, I'm sorry, I'm late." Yu Hua walked into the office, came to Luo Wenguang, and greeted Luo Wenguang politely.
Luo Wenguang smiled and shook his head: "No problem, sit down first, have you eaten?"
"Sir, let's eat." Yu Hua sat on the wooden bench calmly and nodded respectfully.
Hearing these words, Luo Wenguang smiled slightly and carefully looked at Yu Hua in front of him. He had regular features, a calm expression, and a trace of heroism between his brows, giving people a feeling of confidence but not arrogance.
Recalling Yu Hua's previous aspirations, Luo Wenguang felt a sense of approval in his heart.
He is a pillar of talent.
"Here, this is the name change application form you want. Take a look at it first to make sure there are no errors." Without too much delay, Luo Wenguang opened the drawer and took out a piece of yellowish paper with a sense of age, with a column of large characters written on it.
"Application Form for Student Name Change"
Student Yu Hua is from Chengdu, Sichuan Province. He entered the school on September 1, 24th year of the Republic of China. He is now 18 years old. He is a student in the science class of the third grade of Peiping No. 4 Middle School. He ranks 14th in the school in science and 14th in the school's overall ranking.
35 people have now applied to the school to change their names of their own free will.
Current name: Yu Hua.
Change name:
Signature of the student whose name has been changed:
Signature of grade-level teacher: Luo Wenguang
Signature of the Dean of Academic Affairs: Han Yeping
Principal's signature:
After carefully browsing, Yu Hua confirmed that it was correct. He raised his head and looked at Mr. Luo Wenguang, the senior teacher, and said seriously: "Sir, there is no mistake."
"Then write it. The name change student will sign and write your current name. After this application is handed in and before the first class in the afternoon, you will be called Yu Hua." Luo Wenguang took out the pen he carried with him, took off the pen cap, and
Put it on the table, look at Yu Hua, look at the first student in the class who changed his name, his face is gentle, without the previous stern look, and he gave instructions.
"call……"
When Yu Hua heard these words, his face was solemn and solemn. He stared at the student's name change application form. He picked up Luo Wenguang's pen in his right hand and felt a warm feeling.
Holding the pen in his right hand, he stared at the signature column of the student whose name was changed, and wrote Yu Hua's name without hesitation.
After finishing writing, he moved his eyes to the previous column and changed his name. He took a deep breath and couldn't help but close his eyes. He thought about the past and memories of his predecessor, Yu Hua, and said in his heart, "I will take your memories and dreams with you."