Principal Qi Meige was extremely happy with this result. After so many years, he was finally proud and proud.
After the joint entrance examination results were announced, olive branches from colleges and universities across the country were sent like snowflakes in the form of telegrams to Peking No. 4 Middle School.
National Peking University, National Beijing Normal University, National Chiao Tung University,
National Zhejiang University, and even Central University, a transcendent entity in the national university system, all sent invitations for admission.
In addition, Yanjing University, the king among Christian universities, also sent an invitation letter to Peking No. 4 Middle School.
The conditions offered by various universities are extremely generous, almost to the extreme. As long as you accept them,
Complete the admission procedures immediately,
Not only will all tuition fees be waived during university studies,
A fixed annual scholarship is also provided.
As the richest university in the country, Yenching University offers an annual scholarship of 1,000 yuan and conditions for employment in the school after graduation.
National Central University does not have the salary to work in the school after graduation. The scholarship is 800 French currency per year. National Peking University offers teaching assistantship after graduation and a scholarship of 500 French currency per year. National Chiao Tung University and National Zhejiang University each provide corresponding benefits.
It has to be said that this kind of treatment is so generous that it makes countless students jealous and envious. However, considering Yu Hua's joint entrance examination results, they can't say anything.
For students, grades are everything.
Full marks in seven subjects.
This is an achievement that countless high school students in Peking would never dare to think about.
However, Yu Hua, who stayed in Liu Village,
After learning about the olive branches from various universities through Lin Wan, she rejected them all and once again devoted herself to the intense and busy manufacturing process of Yu's Seven Pagodas.
For the olive branches from universities around the world,
acceptable,
But it's not necessary.
For college, he just wants to go to Tsinghua University.
For him,
Tsinghua University is the best solution at this stage. There is no one.
The popularity of the Beiping Joint Entrance Examination remains high. All kinds of things have become a topic of conversation among parents and teachers. Ordinary people are still struggling for three meals a day. For the vast majority of people, what is Yu Hua, the top scorer in the joint entrance examination?
It's far less important than filling your belly.
Baiyangdian, Liucun, experimental site.
At dawn, at ten minutes past five, there was a hint of white in the distant sky.
The lights in the experimental site are bright, and two core containers with metallic luster are lying on the ground. In three days, the welders who stayed up late to finish the work have completed the No. 1 acid generator tower and the No. 2 denitrification tower, and transported the two core containers to
placed in the experimental field.
The reason why the two core containers are lying on the ground is because they are waiting for the lifting device.
In the experimental site, there are four three-meter-high metal columns. The base is a newly built brick-concrete base, which is connected by screws. A thick steel beam is installed on the metal columns.
The front end of the steel beam is an electric hoist, and the rear end of the steel beam is a heavy stone bar.
This is a simple lifting device similar to the gate railing structure of later generations. Yu Hua designed and manufactured it based on the current technical level. The structure is simple, stable and reliable. The lifting weight of each lifting device is four tons, and the total lifting weight of the four lifting devices is sixteen tons. It is placed at the four corners of the container at the predetermined position and is used to cooperatively lift the core container weighing 9.5 tons.
In the experimental site, the No. 1 acid-generating tower lying on the ground is lying on the predetermined area. A steel rope is wrapped around the top and middle of the container. Four lifting rings are installed on the middle steel rope, which is connected to four lifting devices. The top is connected to a team. Workers, their role is to adjust the position and angle of the container from 'lying' to 'standing' after the core container is hoisted.
It sounds complicated, and in fact, it is.
But there is no way.
In the era before large-scale lifting engineering equipment, complexity was not important, what was important was whether it could be used.
Gu Zhen
As it happens, this installation method works.
It's usable and has a bit of an original flavor.
All preparations before hoisting are in place. More than a hundred workers are holding the hemp rope connected to the top steel rope in their hands. The four corners of the preset area are ready. After simple training, four lifting teams are ready. The hook is connected to the steel rope in the middle of the container. Rings.
Yu Hua, the elegant man, Liu Wei, and Lin Wan stood on the right side of the experimental site base, quietly watching the first core container. The person in charge of the on-site hoisting gave the order to carry out the hoisting operation. Then, the sound of the electric hoist was heard, lying on the ground. The core container rose up in response, leaving the ground where it had been lying for several days, suspended in the air, and gradually rose in height.
After reaching a height of three meters, the worker team received instructions. More than a hundred people began to pull the hemp rope. A lateral force was generated. The head of the horizontal core container slowly rose and changed its posture. When the tilt angle increased to five Ten degrees later, a new command was issued, the worker team stopped pulling the hemp rope, and four lifting teams controlled the railing lifting device to lower the height.
Soon, the tilted core container slightly touched the ground, and the worker team pulled the hemp rope again, causing the tilt angle to increase again.
Ten seconds later, the entire core container turned 90 degrees to the sky and was in a horizontal and vertical position. Four lifting teams lifted the container body in a small manner and moved it to the predetermined position.
A few minutes later.
"Boom!" As a slight dull sound came out, the core container weighing 9.5 tons accurately landed at the predetermined position of the experimental site.
"Successful!" Seeing this scene, many workers exclaimed with excitement and joy.
The person in charge of the hoisting and the four hoisting teams breathed a sigh of relief. Fortunately, nothing went wrong.
"This method may not look like much, but it's actually very useful. It solves the problem of lifting and moving heavy objects." The elegant man praised with a smile on his face, clapped his hands together, and applauded.
Lifting and moving heavy objects has always been a problem. People can carry one or two hundred kilograms on their backs, but they cannot move five or six hundred kilograms. As for things weighing thousands or even tens of thousands of kilograms, it is difficult to carry them. Can't even push it.
The railing-type lifting device looks simple, but it directly solves this problem.
Liu smiled and nodded, applauding the comrades who performed the operation for the first time.
"Yu Hua, your approach is really good." Lin Wan clapped her hands and said to Yu Hua with a smile on her beautiful face.
"It's all thanks to everyone." Yu Hua smiled. He was not surprised that the core container was successfully hoisted. This method based on the lever principle has been mathematically verified. Mathematics told him that it was feasible, and Archimedes provided the principle.
As for the shortcomings of this hoisting method, they are not important under the premise of "it can be used".
Safety?
Simple?
original?
None of them exist.
With the successful experience of the first collaborative hoisting operation, it will be much easier to install the core container next, and he does not need to worry about it.
After watching the hoisting operation of the core container, Yu Hua and Lin Wan left Liu Village together, took a Buick car, and embarked on the road to Peking. Today was crucial for the two of them. Yu Hua was going to Tsinghua University to take the recommended student examination, and Lin Wan wanted to
Go to Peking University to take the exam for recommended students. The time is eight o'clock, so there is no room for delay.
On the way, the driver drove very fast. Yang Xiu was the co-pilot. Butler Liu and the elegant man stayed in Liu Village.