When she arrived, Jiang Shiyue found that the broken wall was bigger and heavier than she had estimated.

"With such a heavy wall, I can't lift it." Jiang Shiyue opened her mouth and threw away the wood she had used to act as a crowbar.

The person who shouted Jiang Shiyue didn't refute, only a little disappointed.

This lesbian is white and clean, and at first glance she is not the material for work.

I'm afraid that standing here will be in the way, just wanted to open my mouth to let Jiang Shiyue leave, and heard her speak.

"I have a solution, though."

Everyone looked at Jiang Shiyue in unison.

"It's very simple, first of all, we need some strong enough rope or iron chains, and then find a high place that can withstand twice the weight of this wall," Jiang Shiyue briefly introduced the principle ......of leverage.

Most of these desperate people are local ordinary people, who have no education, let alone any professional training, and they are skeptical of Jiang Shiyue's words.

"There are so many of us who can't lift it, and we can get up by getting a few ropes around a distance?" Some people don't believe it.

"This comrade, thank you for your suggestion, you can try it if you are usually fine, but there is no time to waste when human life is at stake, so let's go back and call some more people!"

"Where are there any idlers? Why don't we try her opinion? ”

“……”

After a brief discussion, everyone finally decided to become a dead horse doctor and try Jiang Shiyue's proposed method.

Fortunately, there is no shortage of hemp rope in the disaster area.

Everyone found a few wrist-thick hemp ropes to tie above the collapsed wall, and pulled them over the wall that did not collapse next to them, using this wall as a fulcrum.

The rescuers were divided into two groups.

One group stands behind a strong high wall and is responsible for pulling the rope.

The other group stayed in place, in case Jiang Shiyue's idea was unreliable and caused a secondary collapse to the wounded.

Jiang Shiyue was responsible for standing aside and coordinating the two groups; Shout slogans.

"One...... Two...... Three...... Rise! ”

The hemp rope quickly tightened under the pull of the crowd.

Finally, the collapsed wall moved, like a mussel shell slowly opening.

Those who remained in place exclaimed, "It's moving!" It's moving! Pull it up again! ”

A few people couldn't help but run behind the wall to help.

As soon as the paramedics saw that the gap was enough to drag out the wounded, they immediately stepped forward.

One of the doctor-looking men examined the patient and said, "Quick, send it for debridement and see if the leg can be saved." ”

The doctor glanced at Jiang Shiyue before leaving, and his eyes showed appreciation, "Comrade, if his leg can be saved, you are the greatest hero, buying him time." ”

Jiang Shiyue: "......"

A few people who pulled the wall just now came around, and looked at Jiang Shiyue's eyes, which changed from disgust to worship.

"Little comrade, you are amazing! Before, so many of us couldn't lift the wall, but adding two more ropes was enough. ”

"Comrade, you're a scholar, aren't you? It's better to have culture. In the future, I will also send my baby to study. ”

“……”

Jiang Shiyue was distracted by the praise.

Shouldn't doctors also be literate people? Why he also heard the principle of leverage for the first time.

Later, when resting, Jiang Shiyue found the answer here in Chen Shanhe.

Chen Shanhe said that not all doctors are employed in professional classes, many are ancestral, and some are self-taught.

During the disaster relief period, all the manpower available was used, and it was not so important whether you had a doctor's license or not.

As long as you can save people.

But this is a later thing, and now Jiang Shiyue has helped people with the principle of leverage, and retried his confidence that he is not a wasted person, and went around to help.

Jiang Shiyue helped a few times, some of them were considered to be charcoal in the snow, and some of them were not to mention the snake and added a lot of money, but they were a little bit chicken.

Jiang Shiyue, who summed up her experience, decided to make use of her strengths and avoid weaknesses, and instead of wasting time on physical work, she turned to do what she was good at.

The power in the disaster area was cut off, but it was fine during the day, but rescue at night was the biggest problem.

Aluminum flashlights also need batteries to illuminate.

The supplies are so scarce that the batteries cannot be supplied in unlimited quantities for the time being.

In fact, the entire disaster area lacked nothing in the golden seventy-two hours.

Often wait for the best rescue time to come to an end or in the past, and all kinds of food, clothing, shelter and transportation items can be delivered.

Jiang Shiyue borrowed a bicycle and rode to the place where the train collapsed, turned out of the crooked carriage, and tied the two sacks of materials that Lu Zheng found for himself to the back seat of the bicycle and rode back to the disaster area.

She poured the materials into the tent, which was the tent where the pilot was temporarily resting, and they all went out to rescue, and at this moment, only Jiang Shiyue and Yangyang's mother and son seemed to have a lot of space in the tent.

Jiang Shiyue tried to assemble solar panels and LED light bulbs from memory.

The first thing to do is the LED bulbs.

LED lights are much brighter than tungsten lights and are more suitable for outdoor use.

The core raw material of LED lamps is light-emitting diodes. The basic structure is a chip of semiconductor material that emits light on electricity.

Light-emitting diodes are made of phosphorus, nitrogen and other compounds, and then the finished chips are fixed on the lamp plate with glue. Then connect the chip and circuit board, seal it with epoxy resin, and install the housing.

The shock resistance of LED is much better than that of tungsten bulbs, which is quite suitable for rescue.

It's just that LED lamp beads require a dust-free environment, and Jiang Shiyue obviously can't meet the requirements here.

Even tents for temporary surgeries are not guaranteed to be dust-free and sterile.

It can be used for a while, and it will be counted for a while.

Jiang Shiyue began assembling solar panels again.

Yangyang, who had been flipping through the Chinese medicine books, was rarely distracted when Jiang Shiyue dragged the sack into the tent.

Later, when he saw that Jiang Shiyue was making strange things, he put down the book in his hand and surrounded him.

Jiang Shiyue has always believed in practical teaching, and while doing it, she taught Yangyang the principles of LED lights and solar power generation.

After speaking, he handed the tool to Yang Yang and asked him to try, "Come, do you want to make one?" ”

Yang Yang didn't answer, and looked up at Jiang Shiyue.

Jiang Shiyue's eyes were encouraging, and the corners of her lips smiled, "It's okay to make mistakes." Of course, our Yangyang is so powerful, you will be able to do it well if you look at it once! ”

Only then did Yang Yang take the materials from Jiang Shiyue's hand and try it.

Soon, Jiang Shiyue's face was complicated.

In her previous life, under the guidance of professionals, she had practiced several times before learning to do this.

Now, Yangyang, a three-year-old child, has only seen her assemble it once and listened to her talk about it, and soon made a beautiful LED lamp bead.

Better than she did.

While Jiang Shiyue was proud, it was somewhat unpleasant.

It is said that all beings are equal.

However, the initial values are unevenly distributed.

The mother and son quickly installed a solar panel, a small wind turbine for wind power generation, and LED lights.

However, Jiang Shiyue encountered new troubles.

Whether it is a solar panel or a windmill, the meaning of existence is to convert the collected solar and wind energy into electricity.

Batteries are also used to store electricity.

Jiang Shiyue was scratching her ears and cheeks, and Chen Shanhe opened the door curtain and came in.

He looked at the mess of a tent and raised his eyebrows in astonishment, and when he looked down again, he saw a pair of mother and son squatting in the middle of the mess.