The drizzle is knotted, and the passers-by are tangential to each other. The first cold mangfest, the early summer is hazy.

Singing engineering, love Zhou Shan Lying. The mind is hot, the clouds are staggered, and the glow is shining.

Zhang Xiaobao said that he would never sneak to the research institute without a private visit, and after he and Wang Juan left the house, they were protected by five hundred members of the seedling protection team, one by one, holding submachine guns, vigilantly looking at everyone around them.

The drizzle in the sky kept falling, and the passers-by who were in a hurry saw the seedling guards in formation, and immediately hid to the side, and the guys in the shops on the street dragged the people standing at the door to the store, and did not let the people in the store come out.

There are shops that are open on the second or third floors, and the clerks rush up and stand at the window with their backs to the outside, and even if there are people who want to eat and want to see the rain outside.

The people all knew that Xiaobao and Juan Juan were traveling, and as a land-sitting household, they would consciously minimize the possible dangers, and then they would secretly look at Xiaobao and Juan Juan's clothes and expressions.

First of all, it is necessary to determine whether they are wearing official uniforms, they wear official uniforms, and generally when they encounter major events, the people will wonder, what is the matter?

If the two people are not wearing official clothes, they are still in a hurry, and they are guaranteed to encounter an emergency, and the people will be very anxious.

Today, Zhang Xiaobao and Wang Juan are wearing jackets on their upper bodies, jeans on their lower bodies, sneakers on their feet, and an armed belt tied around their waists.

The two of them didn't have an umbrella, they chatted while walking, the speed of travel was not fast, their expressions were natural, the people breathed a sigh of relief, it's okay, Xiaobao and Juan Juan came out to play normally.

When the team walked over, the shops returned to their previous appearance, and the pedestrians got on the road anew, and then talked about where Xiaobao and Juan Juan were going to play today.

No one thinks that the two people are big, and no one says that they are afraid of death, if the two people do not bring guards, the people will be angry, and feel that the behavior of the two people is irresponsible to themselves, not responsible to the Tang Dynasty, and is trapped in a panic for people like themselves, with moral problems, bad quality, and selfishness.

When the team was about to leave Suzaku Street, there were people who were cleaning the mud for the culvert on the side of the road and straightened their waists, and when they saw a group of people with guns, they rubbed their arms against their foreheads and the sweat mixed with rain, and greeted them cordially: "Xiaobao, Juan Juan, are you busy?" Take an umbrella and be careful of the wind and cold. ”

Zhang Xiaobao didn't know the other party, but still responded enthusiastically: "It's okay, Xiaoyu, don't be busy, the research institute said that there are good things, no, go over and see, you are busy in a while, go to the champion building to take a hot bath, warm up the wine and drink, count it on my account." ”

"You're polite, you smell bad, you're afraid of annoyance, just catch a lobby and go to bubbles later." The greeting person refused, but he was in a very good mood and felt more energetic when he got to work.

Zhang Xiaobao and Wang Juan walked all the way, greeting each other all the way, the streets were very lively, the light rain could not extinguish the enthusiasm of the people, if you want to talk about the shortcomings, they are naturally children.

Today is not a day of holidays, children under the age of five are in kindergarten, those over five years old are in school, and the younger ones are ...... The smaller ones can't be taken out to 'bathe'.

The team walked for an hour and a half before entering the mountainous area where the research institute is located.

The cement road extends all the way in, there are watchtowers on both sides, the soldiers on it are patrolling with guns, and some people are holding binoculars to observe farther away, and when they see the figures of Zhang Xiaobao and Wang Juan appearing, they hurriedly pick up the phone to inform the people inside.

The line went in unimpeded, no one asked for the password, and no one ran down to check the documents.

Continue along the road, walk two kilometers, pass several secret posts, and a teaching area appears in front of it, which is full of high-rise buildings.

Due to confidentiality, students who are eligible to participate in the study are not allowed to leave the school at will, and there are strict restrictions on moving if their family is far away from the capital.

After going out, there may be people secretly following, one is responsible for protection, and the other is surveillance.

Students can understand, so they don't object, many times I miss my relatives, so I ask my relatives to come and see, and the school has a special room for visiting relatives.

What Zhang Xiaobao and Wang Juan like to see most is what others look like when they are in class, and they used to stay outside the door of a classroom to listen to it.

Today is no exception, someone is playing basketball in the rain on the playground, there is no problem with playing basketball itself, what interests the two people is that the person who dribbles the ball while carrying the periodic table.

In addition to the older children in their teens, there are also four children of the family who can be seen in order of size, that is, four little girls, wearing the same clothes and combing the same hairstyle, looking like the same person at different times.

The four little girls were not paying attention to the games on the basketball court, they were sitting under the canopy, holding a few batteries and light bulbs, assembling the player, a large roll of film beside them, and the four eldest girls, who looked to be eight years old, carefully assembling the words written on a piece of paper.

The other girls, who were supposed to be her sisters, watched with inquisitive eyes, occasionally asking a question.

Zhang Xiaobao and Wang Juan glanced at each other, showing a comfortable smile, this is an era of learning, this is an era of children who know hard work, most children are willing to go to school, and a small number of children who do not want to learn, through the benefits given by the school and the attraction of various handicraft courses, also endure the boredom of learning to the school.

Welfare is naturally the baby candy house series of playground play projects, the better the academic performance, the more opportunities to get free play, if you don't go to school, in the case of no money, you can only play ordinary free projects.

Like an electric Trojan horse, a small train, want to play, take money, no money? Still want to play? Going to school and getting a free cake and ice cream? If you can make a small motor airplane by yourself, you can also study well, it feels very simple, but for children, if you want to make it, you still have to learn mathematics and Chinese, because you need to measure the size, you need to understand the introduction text.

Now it is the four female dolls who take the initiative to learn, and Zhang Xiaobao and Wang Juan are even happier.

The two men quietly came to the four children, that is, behind the older children, and they moved little by little, still maintaining the same position, looking at the basketball court.

When they were far away, two little girls actually saw them, but they didn't pay attention to the distance, and continued to stare at the movements of their sister's hands.

Waiting to move over slowly, because there was a psychological inertia before, the two girls didn't feel anything wrong, and continued to watch the movements of their sister's hands.

"What's wrong? The positive and negative poles are connected, and then the light bulb is on, and when it shines on the film, the image is displayed on the front screen, but why is the light bulb not lit? "The eldest little girl was very distressed, fiddling with the battery and the light bulb, which just didn't come on, and she was already trying to pick it up.

Zhang Xiaobao and Wang Juan poked their heads to follow and observe, and then found that there was a problem, the filament in the bulb was broken.

As soon as the two of them got closer, they were finally felt by the eldest child, and when they turned their heads, they were startled at first, and then shouted happily: "Brother Xiaobao, Sister Juanjuan, we ...... Let's see my brother. ”

"Okay, come often." Zhang Xiaobao smiled and nodded.

"Brother Xiaobao, can you tell me why the light bulb doesn't turn on?" The girl is still thinking about this.

For studious children, Zhang Xiaobao naturally had to answer, he took the bulb and said to the four dolls: "First of all, we must be clear about the principle of the light bulb glowing, the current bulb is an electric current through an object, and then there is an obstacle to the current, we call it resistance, and then in the case of obstruction, it will heat up and glow, in the absence of oxygen, its own loss is very small."

Then the premise is that there is resistance, and there must be an electric current passing through, just like the river water, if the resistance is smaller, the water will continue to flow, and the resistance is too large to cut off the water.

The premise is that the river must be smooth, and if the river itself is broken, can there still be water flowing through? Obviously not, the same is true of the current, you see, the filament is broken, the current cannot pass through, the light is not on. ”

Zhang Xiaobao spoke patiently, and then gently adjusted the light bulb in his hand and shook it, because the broken filament was long, he shook and shook it, and it shook together.

At this time, the resistance is actually greater, and burning it will burn the filament again, but it can hold on.

Wang Juan next to him had already connected a few batteries into a battery pack, stuck them with a wire clamp, and handed over two wires, Zhang Xiaobao wrapped a wire around the periphery of the bulb's 'fart~strand', and the center of a wire point.

The 'brush' bulb is on.

"Wow!" The four little girls shouted happily and looked at Zhang Xiaobao with adoration one by one.

Wang Juan said with a smile next to him: "Learning is to learn this way of thinking, first know why, and then solve it." ”

"What I know is called knowing what it is, and I need to know why it is." The older kids put what they learned to use.

"Brother Xiaobao, Sister Juanjuan, can any problem be solved after learning knowledge?" A smaller girl asked.

"Of course, we can't solve it, because we haven't learned well enough." Wang Juan couldn't deny it, but she didn't say it full, and there were many things that couldn't be solved.

"Can that make the sky clearer? I hate the rain. The little girl frowned and looked at the sky outside.

"Yes, as long as we know the reason for the rain, we can find a way to make the weather clear." Although Wang Juan can't blow away the clouds now, she still leaves this thought to her children.

But just as she had finished saying this, the rain stopped, and then the dark clouds in the sky showed a gap, and a ray of sunlight fell and shone obliquely on her.

"Wow, it's really a fairy." The four little girls looked at Wang Juan with wide eyes.

"Alas~!" Wang Juan sighed, and said in his heart that I am to let you have the motivation and interest to learn, not to let you locate the existence of God, and this God will not help, and will make trouble.