Datang Institute of Technology

Before the car was pushed over, the feet of a group of people were already high.

Just now, whether it was the unique mirror that made people's eyes shine, or the glazed products that made people happy and sad, they had already shocked a group of people in a daze.

As a result, Xu Jiazi said that the first two things could not reflect the meaning of his first project at all, so what will be pushed over now?

The flatbed is still covered with a black cloth.

It's just a distance of a road, which actually gives people a feeling of hopelessness.

What will it be?It's so exciting.

Xu Changsheng said, "Since this is the first topic, it must be related to colored glaze. By the way, I call it glass. Glass is cheap, and it is not an expensive thing that everyone collects at home."

I don't know how many people's faces are black, Xu Jiazi, you'd better expose Liuli's matter quickly, they have a bad heart.

Xu Changsheng continued, "I said that science is something that benefits the country and the people. Although mirrors are good, copper mirrors can barely replace them, let alone colored glazes. Only a few people are buying them, and not many people are affected. , but what I am going to show now may have something to do with many people.”

Everyone was interested, what can Xu Jiazi use colored glaze to make?

It also affects many people. Does he mean that the next thing will benefit the country and the people?

A group of people put their feet on their feet, squinted their eyes, and kept looking into the black cloth, especially Fang Xuanling, Du Ruhui, and Guozijian Kong Jijiu, their eyes were all squinted.

Xu Changsheng smiled, "Can the three elders see clearly?"

The three of them were taken aback, they didn't expect Xu Jiazi to ask them.

Fang Xuanling said, "It used to be fine, but I don't know why, since a few years ago, my eyesight has become worse day by day. When reading books and memorials, I often get tired easily, have difficulty reading, dizziness, and getting old. It doesn’t work if you don’t accept old age.”

Du Ruhui and Kong Jijiu were even more emotional. After thinking about it, "Since I was very young, my eyesight has been bad. Every time I read a book, I have to hold it very close to see clearly. Other things are blurry. Sometimes it feels like a lifetime has passed in a daze."

Xu Changsheng thought to himself, it seems that Fang Xuanling is more likely to be presbyopic, while Du Ruhui and Kong Jijiu have both been short-sighted since childhood.

Datang has a lot of myopia, especially scholars.

Every time Xu Changsheng went to court, he saw that most of the civil servants were squinting.

It's not that they are impolite, but that they can see a little more clearly with their eyes squinted.

Xu Changsheng probably knew the reason.

People in the Tang Dynasty study hard and often read until late at night, but in what environment do they read?

They are all lit with dim oil lamps. I heard that poorer families specially choose darker oil lamps to save fuel.

People in the Tang Dynasty, who has not been in the cold for decades, and if things go on like this, most people's eyes will become short-sighted.

The proportion of myopia is even greater than that of modern people. After all, Datang does not have a soft light that does not hurt the eyes.

Xu Changsheng pulled the black cloth away.

A group of people observed, but didn't understand much.

One part is Liuli, which is the glass in Xu Jiazi's mouth, and the other part is a strange shelf.

Everyone was taken aback. This is what Xu Jiazi said just now. What he is showing now has something to do with many people?

No matter how I looked at it, I couldn't understand it. I looked at Xu Changsheng in bewilderment, "Xu Jiazi, what are these? It's not even as beautiful as the glass products shown just now."

Xu Changsheng smiled and didn't explain, but said to Fang Xuanling and the others, "Please invite the three elders to come forward, how about returning the three elders to the real world after longevity?"

The three of Fang Xuanling were a little confused, how about giving them a real world?It's like they're living in a fantasy.

In fact, it wasn't that Xu Changsheng was playing tricks on purpose, it was just that other people didn't understand.

The three of them laughed, "I want to see and see what Xu Jiazi said about the real world."

The three of them stepped forward, and Xu Changsheng took out a vision test chart and drew a line on the ground, "Three elders, please stand in front of the line."

Then he ran to the vision map, pointed at it with a branch, "Master Fang, which direction is the opening of this symbol facing?"

The three of Fang Xuanling were very confused, didn't they mean to give them a real world?

Others are even more confused, what are they doing?

Although I can't understand it, I can watch it with relish.

Xu Changsheng guided the eye examination, and people from the Xu family were taking notes beside him.

Xu Changsheng muttered, "Boss Du and Kong Jijiu's near-sightedness is too serious, almost 800 degrees, and I don't know how to live these days. Boss Fang's presbyopia is a little better."

Shaking his head.

At 800 degrees, people should be seen with ghosts, not only people, but other things are also blurred.

Xu Changsheng said that returning them to a real world may not be exaggerated. After they are equipped with glasses, the world they see will definitely be different from the previous one.

Xu Changsheng has already asked someone to wear glasses.

Lenses of various degrees are placed on the wooden board, divided into presbyopic lenses and short-sighted lenses.

As long as the eyesight is measured, then the corresponding lenses are taken and polished, and put into the frame, the time will not be too long.

Fang Xuanling and the others were still at a loss, what is the situation now?

Let them see a bunch of strange symbols inexplicably, and then leave them aside.

Xu Changsheng has already gone to see someone from the Xu family polish their lenses. After studying for so long, the skill is already very good.

The people around looked at each other in blank dismay, what are the people from the Xu family doing?

Not long after, Xu Changsheng came over with a tray with three sets of glasses on it.

All eyes were on the three sets of glasses, which seemed strange to them, and they didn't even know they were worn on the bridge of their noses.

Xu Changsheng looked at it, "Boss Fang, this is yours, and Boss Du's Kong Jijiu, this is yours."

The three took it in doubt, "What is this?"

Xu Changsheng was taken aback, and patted his forehead, "Three adults, squat down a little, and Changsheng will put it on for you."

"My lords, please close your eyes first." Xu Changsheng said in order not to hurt his eyes.

The people around watched Xu Changsheng hang three strange frames on the bridges of the noses of the three adults without blinking their eyes.

For a while, nothing seems to have happened?

Doubt, puzzled.

Xu Changsheng said, "Three elders, please open your eyes, don't be shocked."

Although Xu Changsheng said that, when the three elders opened their eyes, they were stunned for a moment, and then their mouths became O-shaped, and their bodies were trembling.

Everyone around was dumbfounded.

They didn't see any changes, why are the expressions of the three elders so shocked?

Fang Xuanling's hands were trembling, he raised his hand and shook it in front of his eyes, "This, this, this..."

The words were trembling, "How many years have passed, and I can still see as clearly as before."

He is just a presbyopia.

The performance of Du Ruhui and Kong Jijiu was even worse. They were short-sighted when they were very young. After so many years, they could see things blurry. They even forgot the clear appearance of many things.

but now……

The two trembled, suddenly looked left and right, saw that everything was fresh, and touched it with their hands every now and then.

Seeing a group of people in a daze, are the two elders in a daze?

Du Ruhui was actually touching a child's little face, which frightened the child into a daze. The key point was that Du Ruhui's expression was simply insulting to gentleness.

Kong Jijiu, you are the leader of the literary world, how can you, how can you stare at a big girl with yellow flowers.

Even Li Shimin couldn't help coughing, what happened to his right arm?

Du Ruhui and Kong Jijiu came back to their senses, and then became even more exaggerated, shouting, "So, this world is like this."

The inexplicable words will make everyone dumbfounded. What's going on?

Du Ruhui's voice trembled a little, "When I was very young, my eyesight was not good, and everything I saw was blurry. I never thought that at this age, I would still be able to see clearly one day."

Kong Jijiu is also nodding, the blurred and clear worlds are completely different worlds, how can they not be excited, look at Xu Changsheng,

"Xu Jiazi, this is..."

Xu Changsheng replied, "These things are called glasses."

Kong Jijiu nodded, "The glasses are really amazing. For many people, it's like giving a new life to a new world."

It may be a bit exaggerated, but for people with high myopia, it is no different from giving the other party light, just like letting a blind man see the world again.

As the Imperial College Jijiu, he has come into contact with countless readers, and he has seen too many people with bad eyesight because of reading, so he gave such a high evaluation of glasses.

The people around are confused, giving people a new life?

How did Kong Jijiu give such a high evaluation?They didn't understand anything.

Xu Changsheng asked, "Three elders, the development of science is to serve people. Is my first project passed?"

The three of them straightened their heads, "It's more than just passing. I'm afraid that after today, countless scholars will have to thank you."

The people around were even more confused, "Xu Jiazi, you should explain."

Xu Changsheng smiled, "Let's ask the three elders to explain, they are the actual users."

At this time, the three elders found a book from nowhere, and the three of them were looking at Shule, and they were still amazed.

Many people who knew something about the three elders were taken aback. When the three elders reviewed the memorials, they were not like this now. They seemed to understand something, but they didn't know how to describe it.

The three of them raised their heads after listening to Xu Changsheng's words, and the smiles on the corners of their mouths were extremely bright, "Everyone, this subject of the Xu family is indeed remarkable, especially the thing called glasses that was displayed at the end."

The three of them looked at some old friends who were officials in the same dynasty, and then turned to everyone, "For scholars, these glasses are like a gift from heaven. They can bring your eyes back to their best state, just like When I was young, I saw everything clearly."

As soon as the voice fell, there was no sound.

Most of the people here are scholars, so those with bad eyesight account for a large part.

The eyes are back to the best condition, just like when you were young, you can see everything clearly?

"Three elders, what do you mean?" I don't know how many people were trembling.

The three nodded, "Put it on, and the scene I see is extremely clear, without any ghosting or ghosting, and without any blurring."

"Wow!"

No one knows better than these scholars the pain that cannot be seen clearly, and the pain in it has tortured many people.

But they can't help it.

But now, Xu Jiazi can actually make them see clearly again.

No wonder the three elders spoke so highly of this glasses.

Most of the people looked at Xu Jiazi with red eyes.

Xu Changsheng trembled, what's wrong?His little arms and legs are not beaten.

"Xu Jiazi, no matter what, you have to sell me a pair of these glasses." Someone shouted.

On the contrary, Xu Changsheng breathed a sigh of relief. It turned out that he was here for the glasses. It’s fine not to come at him. He stretched out his hand to suppress his voice, and said, "Don’t worry, everyone. We have fifty free places on the spot. Glasses."

In order to advertise, his free activities have to continue.

The voice just fell, and the scene became even more excited, "Why are there only fifty places, there are so many of us."

Some people stared at the lenses on the wooden board with their eyes shining brightly. Just now they watched the people from the Xu family put these lenses into the baskets, and they became the glasses worn by the three elders.

Damn, these scholars are afraid that they will turn into hungry wolves and pounce on them, as if they saw some rare treasures.

For the nearsighted, a pair of spectacles is rightly said to be their rare treasure, so it's no wonder these people are so excited.

Xu Changsheng said, "Glasses vary from person to person, and they need to be tested for vision before they can be used. In other words, everyone's glasses are different."

"But there are only fifty copies, how can it be enough?"

Xu Changsheng was taken aback, "I'm talking about fifty copies for free today."

Then he smiled and said to everyone, "Don't worry, everyone, glasses are a second life for people who can't see clearly in the world. Since I, Xu Family Village, have researched it, how could I hide it?"

"Let me also reveal to everyone that besides Xu's Supermarket and Immortal Restaurant, my Xujia Village will open a third industry, which is the Xujia Optical Store. Xujia Optical Co., Ltd. specially prepares them."

He happened to be running an ad for his new business.

Datang has a lot of myopia, and this is a great market. Just thinking about it, you know that the business is great.

A group of people also breathed a sigh of relief.

They thought that there were only fifty pairs, and they wanted to buy one pair at the thought of ruining their fortunes.

Someone asked worriedly, "I don't know the price of these glasses?"

After all, not everyone is rich.

Xu Changsheng smiled, "You have also seen that glasses are actually made of glass. Now everyone knows that the cost of glass is not high. We have this craft in Xujia Village, so the price of glasses is definitely acceptable to everyone. Well, ordinary people can also afford it."

Ordinary people can afford it?

I don't know how many people breathed a sigh of relief. If it is sold at the original price of colored glaze, they can only watch helplessly.

Someone began to boast, "Xu Jiazi's subject is really beneficial to the country and the people."

"Who says it's not? The glasses alone have benefited many people, and I don't know how many people can see the world clearly again."

The praise made Xu Changsheng blush, and scholars are really awesome when they praise him.

Xu Changsheng looked at the sky, "Everyone, let's draw a quota first, because there are a lot of people, so draw lots."

People from the Xu family have already brought up a tray with paper balls folded exactly the same. This is the most fair way, and everyone depends on luck.

What Xu Changsheng didn't expect was that Li Shimin and Empress Changsun both drew one, and Empress Changsun also won.

The draw will end soon.

The Xu family began to test the eyesight of the winners.

Empress Changsun is indeed short-sighted, but the degree is not as exaggerated as Fang Xuanling and the other three.

After putting on the glasses, Empress Changsun was surprised.

Although her short-sightedness is not particularly serious, it was quite surprising that she suddenly became clear after putting on the glasses. She couldn't help saying, "It's really a magical thing."

Xu Changsheng looked at the Empress of the Tang Dynasty who was wearing glasses, and seemed to have a little more refined air.

The corners of his mouth twitched. This picture is really a bit like the situation of wearing ancient clothes and taking pictures in modern tourist areas.

But the other people who wore glasses were not as calm as Empress Zhangsun, and kept exclaiming, especially those with relatively high degrees of myopia. The surprise and surprise could be heard completely through their voices.

It's really amazing, I didn't expect that they could see so clearly just by wearing a strange "glasses".

This is something they never dared to imagine before.

People without glasses can only watch a group of screaming people. Without personal experience, it is impossible to imagine the changes.

Myopia who didn't get the free quota, their complexion is as bitter as a cucumber. Although Xu Jiazi said that Xu's glasses shop will open soon, they also want to try to wear glasses now.

Some people even borrowed from acquaintances.

Others are careful when handling glasses, but to him, they are like the most precious treasure in the world, not an exaggeration at all.

It's just that people who borrowed glasses to wear them were even more confused, because instead of seeing more clearly, they became dizzy instead, which was nothing like what others said just now.

Xu Changsheng had to explain again, "The glasses need to be prepared after the eyesight is checked. Everyone's eyesight is different, which means that the prepared glasses are basically special, and other people can't use them."

Everyone: "..."

Xu Changsheng: "..."

It's not that he doesn't want to explain patiently, but that glasses involve too much scientific knowledge. How can he explain optics, eyeball structure, etc. to Datang people.

It's like a person suddenly ran out to explain the principles of nuclear weapons to you. Can you understand it in a short time?It is estimated that technical terms can make people crazy.

Xu Changsheng sighed, the foundation is different, how can it be explained?

Xu Changsheng has long had the idea of ​​spreading his basic knowledge to every corner of Datang, such as the children's popular science books he printed, which actually has this meaning.

It's a pity that there are too many things going on one after another, whether it's going to court or going to the Imperial College to study, or busy with business wars, there is simply no time for the basic science popularization plan.

Sometimes Xu Changsheng is really helpless. He wants to explain clearly to these people, but when some terms that others don't understand come out, he has to explain new words one by one. The more he explains, the more he explains.

Therefore, when he explains things now, he always speaks in a simple way. Even so, many people still don't understand.

Xu Changsheng gritted his teeth, and when his lecture was over, he would put the basic knowledge of popular science on the agenda.

Now, the people of the Xu family are still busy making glasses, and Xu Changsheng is also waiting.

Li Tai saw that Xu Changsheng didn't continue to preach, and then started to make trouble again.

He watched Xu Changsheng preach, and everyone was shocked, but they were so envious, he wanted to do the same.

He walked up with his head held high, "Everyone, I'm bored, how about I show you another scientific phenomenon?"

The royal children who were still rockets backed away.

Earlier, it was because Qing Que said they were performing some scientific phenomenon and made their hair so strange. I don’t know how many people still watched them secretly. If they were not well-mannered, they would all cry on the ground.

Now that Qingque said that they were going to perform some scientific phenomenon, they had to stay away.

Li Tai was taken aback, what's wrong?He ran as fast as he had seen a ghost.

However, there were still many people who looked over curiously.

Li Tai glared at the child who ran far away, "Really, what are you afraid of? You don't need to do experiments."

"Really?" The voice came from afar.

"Don't worry." Li Tai said, and ran to find Brother Changbai who was looking at getting glasses.

Li Tai gestured, "Lend me yours for fun."

Brother Changbai was a little bit reluctant, "Don't fall, I'm the only one."

Li Tai straightened his head, and in the eyes of everyone, he ran over with a strange thing, also made of glass, which looked like round glasses, but with only one eye.

Li Tai happily yelled, "Show everyone a fire from a distance."

Brother Changbai followed Li Tai, afraid that he would drop the magnifying glass. The magnifying glass is fun, and he only has one.

Light a fire from a distance?How can this be?Wouldn't it be a magic trick?

But thinking that King Wei is learning some weird things from Xu Jiazi, maybe he can really play something they didn't expect.

A group of people came to be interested, and many people looked over.

They want to see how to create a fire from a distance.

Li Tai found a piece of paper and put it on the ground, then overjoyedly raised the magnifying glass to the sun and adjusted its position until a spot of light appeared on the paper.

Everyone was taken aback, what is His Royal Highness Wei Wang doing with this strange posture?The paper is so far apart, and there is no flint, how can it burn?

Even a group of princes and princesses who ran away just now also ran over, "Qing Que, you lie, you won't burn at all."

"It must be a lie, Qingque is not a fairy, how could it be possible to light a fire in the air?"

Li Tai snorted, but ignored it. He didn't know why, but now facing a group of children, he had a special sense of superiority. He sighed and endured the pressure that he shouldn't have at his age.

A group of children were still denying it, but suddenly...the paper on the ground quietly ignited.

The fire was getting bigger and bigger, and the whole paper was reduced to ashes under everyone's eyes.

A group of children were stunned, really...it ignited out of thin air.

Not only a group of children, but also a group of adults were stunned.

How this is done is amazing.

Li Tai looked at the bewildered group of people and laughed heartily. Let's see, it's such a sense of accomplishment.

Xu Changsheng couldn't help but listened to Li Tai's exaggerated laughter and looked over. He glanced at the magnifying glass in Li Tai's hand. This kid is playing with a magnifying glass to light a fire?Shout out, and be expelled from the division in minutes.

But looking at it again, Li Tai laughed and explained to a group of bewildered people, "This is using a magnifying glass to gather sunlight to form a focal point, not some fairy art..."

Only then did Xu Changsheng nod his head, daring to play tricks with what he taught, to see if he didn't jump up and whip people.

Li Tai can be regarded as helping to spread scientific knowledge.

A group of little princes and princesses were all excited to see, "Young sparrow, we also want to learn..."

Children may not understand it, but this is fun. When they see something strange, they instinctively want to try it.

Li Tai frowned, pulled his eyebrows upwards with his hands, and said pretending to be majestic, "It's very dangerous to learn what to learn at a young age. You should learn how to read."

But Xu Jiazi said that playing like this is easy to cause a fire. Didn't you see that he doesn't even have a magnifying glass?I have to go to Brother Changbai to borrow them. He is so old that he can't play with fire, let alone these little carrots.

Seeing that Li Tai didn't teach them how to play, a group of little princes and princesses ran to complain to Li Shimin and Empress Changsun who were wearing glasses.

"Father, Father, we also need to learn how to light fire from a distance, Qingque won't teach us."

"Father, father, why can Qing Que learn that science from the Xu family, but we can't?"

"That is, we also have to learn science from the Xu family, and the emperor can't treat one more favorably than another."

twitter.

Li Tai stayed far away, covered his mouth and smiled secretly, his father would not agree, the reason why he was able to study science was the reason why he jumped into the pool regardless of his own safety.

but……

Li Shimin didn't refuse immediately, but hesitated for a while.

Li Tai was so surprised that he could not close his mouth from ear to ear, his father was actually thinking about it?

Li Shimin was indeed thinking about what Xujiazi's science was like. Facts one after another had explained many problems, and the changes in Xujiacun had also explained many problems.

All these things that were unexpected and beneficial to the country and the people were before his eyes. As the emperor, how could he turn a blind eye.

"Father, father..."

The little princes and princesses are still relentless.

Li Shimin couldn't make a decision for a while, and murmured, "Is it scientific? It's no less than any other knowledge, and it's important to be pragmatic."

At this time, Xu's fifty pairs of glasses were also prepared.

Putting on glasses, like a group of people from heaven and earth, I was so excited.

Moreover, it is very convenient to wear the glasses on the bridge of the nose, and it does not affect the work and reading at all. After wearing them, there is a unique temperament, which is like a serious scholar.

Xu Changsheng smiled and said loudly, "So, Changsheng's first subject is over."

perfect.

"Xu Jiazi, your Xu Jia glasses shop will open soon, we can't wait."

"When the time comes, prepare more. Don't be like today. How can fifty copies be enough?"

Xu Changsheng smiled, "Definitely, before the opening of Xujia Optical Store, everyone will be notified in the Datang Metropolis Daily, and everyone can follow the news of the Datang Metropolis Daily."

After a long exchange of pleasantries, it was over, and the people from the Xu family also pushed the flatbed cart down.

Xu Changsheng looked at the group of people who were still discussing glasses lively, and said loudly, "Everyone, it's getting late, Changsheng will continue to the next topic."

Next subject?

The excitement just now, they almost forgot that there is still a topic that has not started yet.

His eyes looked over.

Surprised by the first subject, they looked forward to the second subject even more.

Xu Changsheng looked at all the gazes, and said, "My second topic, there is only one word, Qi."

气

Everyone was taken aback, could this also form a topic?Very normal.

However, he still looked at Xu Changsheng curiously, to see what tricks he could come up with.

Xu Changsheng changed the subject and said with a smile, "Do you think the chicken soup in our Xujia Village is delicious?"

Everyone was a little confused, and the topic was too confusing, but they still answered, "Xujia Village's chicken soup is indeed unique and delicious, but the price is a bit more expensive than ordinary chicken."

Xujiacun said loudly, "Then, have you noticed that with so many people here today, how did Xujiacun provide the chicken soup that everyone needs in such a short period of time?"

Everyone was stunned for a moment before they realized that there were a lot of people here today, but there was no problem with the supply of chicken soup in Xujia Village. Stewing chicken soup was different from cooking other dishes, and it took several hours anyway.

How did Xujia Village supply so much chicken soup in a short period of time?It is impossible to survive in a short time.

"Could it be that Xujia Village knew in advance that there would be so many people? So they did it in advance?" someone asked.

Otherwise, wouldn't it be a waste to boil so much.

Xu Changsheng replied, "No, our chicken soup started to be stewed after you came."

Everyone was taken aback, "Impossible, right? The cooking time is not enough now."

Xu Changsheng smiled, "In the past, time was indeed not enough, but... it is possible to make good use of Qi. The first product of the utilization of Qi that I want to introduce to you, I call it... a high-pressure gas cooker."

With a wave of his hand, people from the Xu family have brought a strange pot.

Xu Changsheng said, "With this high-pressure gas cooker, it only takes two cups of tea to cook a pot of delicious chicken soup."

A cup of tea takes ten minutes.

Without waiting for anyone to ask questions, Xu Changsheng performed in front of everyone. He filled the pot with water, put a chicken that had just been slaughtered and washed, then covered it and put it on the coal stove.

A group of people stared blankly, Xu Jiazi actually started to stew chicken soup in front of them.

The reason why Xu Changsheng made the high-pressure gas cooker is because it is close to the people's livelihood. With the high-pressure gas cooker, a lot of firewood can be saved, which can be regarded as increasing income and reducing expenditure for Datang, and improving people's livelihood.

Xu Changsheng was talking about the principles, benefits, and dangers of a pressure cooker, "This is something that ordinary people can use, so don't underestimate it."

Many officials in Li Shimin couldn't help but nodded. Compared with those exaggerated or useless things, this kind of things that are close to people's livelihood can really play the biggest role.

With the explanation, the pressure cooker has already made a whining sound.

Xu Changsheng roughly calculated the time, and then waited for the exhaust.

After a while, Xu Changsheng smiled and said, "Do you think my pot of chicken stew is good?"

Everyone was stunned. They just listened to Xu Jiazi's explanation, what about air pressure, and before they realized it, a pot of chicken soup was ready?

"So fast? Impossible?" But Xu Jiazi's tone seemed very certain.

Xu Changsheng asked someone to lift the lid of the pot directly.

The aroma of the chicken soup is good, and many people still swallow their mouths.

Then I scooped the chicken with a spoon, and the meat and bones were separated directly.

Already familiar.

Xu Changsheng said, "The chicken soup that I offer you today is made in this way. It is quick and convenient, saves firewood, and is a good treasure in the hands of ordinary people."

It's really a nice thing.

Li Shimin nodded, increasing income and reducing expenditure is nothing more than that, although it is just a pot, it is something that can benefit the world.

No matter how other people look at this pot, they think it is miraculous. How can the chicken be stewed in such a short time and the fire is not big?

I don't understand it, but it doesn't matter, Xu Jiazi has already explained how to use it.

Many people are calculating that saving a little firewood a day will cost a lot of money over time.

And the time you save with a pressure cooker can be used for other things too.

Xu Changsheng added, "The high-pressure gas cooker can be regarded as a small test of Changsheng. I hope it can reach thousands of households through Xujia Supermarket, just like the oil in my Xujia Village, and bring convenience and benefits to the people."

People's livelihood, it is good to be able to promote the people's livelihood in Datang while developing Xujia Village, otherwise the whole Datang will be miserable, and the development of their Xujia Village will be relatively abnormal.

The magic of the pressure cooker stunned a group of people, even women who often cook couldn't figure it out.

Xu Changsheng's explanation sounded even more mysterious to them.

Looking at the expressions of these people, I became more determined to start spreading the basic knowledge as soon as possible.

Empress Changsun seemed very interested in the pressure cooker, "Xu Jiazi's fairy pot is good, remember to give me one when you leave."

Empress Changsun turned out to be Bole of the pressure cooker, and she actually asked him for a pot.

Xu Changsheng thought, in the future, can he use his family's cooking pot to advertise with the empress of the eldest grandson?

Everyone also talked about it, "It's really a fairy pot, it can cook things in advance."

Well, he talked about knowledge for most of the day, but no one understood.

I had no choice but to say, "The pressure cooker will be sold in Xu's supermarket soon, and those who are interested can buy one and try it at home."

Many people's eyes lit up. Just now they saw with their own eyes that a chicken was stewed in a short time.

Xu Changsheng emphasized again that he called it a pressure cooker, not a fairy pot, and then continued, "For the second topic, Changsheng also prepared three things. The high-pressure gas cooker that can save firewood and time is the first, and the second Well……"

At this time, a huge black cloth pushed over to cover something.

Everyone saw that there must be a big guy behind such a big piece of black cloth.

Covering it with a black cloth must be something strange.

Xu Changsheng said, "Do you think the hang gliding project in my Xujia Village is dangerous?"

As soon as Xu Changsheng's voice fell, many people said, "I've played it before. Although the hang glider looks dangerous, it's actually very stable."

This is more courageous.

More timid, "It looks very dangerous. The whole person is suspended in the air, and I don't feel down-to-earth at all. I can only feel safe when I stand on the ground."

"We want to play too, but we don't dare, so we can only watch. We really hope to see the scenery in the sky."

When it comes to hang gliding, everyone is excited. Of course, only a few have the courage.

Xu Changsheng smiled, "Then, shall I provide everyone with a chance to fly into the sky?"

What?Fly into the sky with your feet on the ground?

How can you fly with your feet on the ground?

Very puzzled.

But Xu Jiazi said this kind of thing in the propaganda, which means that he must have something to show again.

His eyes were fixed on the black cloth.

No one is not curious.

Xu Changsheng simply pulled the black cloth away.

A group of people surrounded it, and after looking at it for a long time, they didn't understand, "Isn't this just a bigger wooden basket? Why is there a coal stove installed in it?"

Xu Changsheng smiled, "This is another example of the use of qi. I call it a hot air balloon. Everyone should let go of sky lanterns, right? The principle is the same... Kongming lanterns are also the same..."

Everyone was stunned when they heard it.

Xu Changsheng smiled, "Anyone want to try it? Make sure it's safe and stable."

As soon as the voice fell, Li Tai jumped out, "I, I, I..."

This bear boy is really not an ordinary skin.

Everyone looked at the wooden basket, which seemed to be safer than a hang glider. Standing in it, it did feel down-to-earth.

In the past, I didn't have the courage to kill them, but the success of hang gliding and bungee jumping...

Xu Changsheng added another sentence, "Fifty places are free today..."

Before the voice fell, a bunch of people started to sign up.

Having experienced [-] free places for hang gliding, [-] free places for bungee jumping, and [-] free places for glasses, they also learned to be smart.

Xujia Village's free quota is a good thing.

Xu Changsheng was stunned for a moment. Is there no shortage of people who want to eat crabs now?He remembered that every time a free quota came out, these people had to hesitate for a long time.