Datang Institute of Technology

Xu Changsheng really received the invitation from His Majesty Li Er.

Looking at the invitation, he was stunned for a while, why did he feel that there was something in His Majesty's words.

Rubbed his eyes, is this implying that he should give a gift?

The father-in-law who sent the post said, "Xu Jiazi, congratulations."

Xu Changsheng was slightly taken aback, what's there to congratulate?He has been hinted by His Majesty of the Tang Dynasty to give a gift, he has to keep this letter, this is solid evidence, and when he returns to Chang'an, he will go to Wei Zhengwei.

The father-in-law continued, "Your Majesty has decided that the palace will purchase a large amount of soap from your Xu family."

Xu Changsheng was taken aback, what a huge deal.

The father-in-law continued, "Moreover, Your Majesty intends to replace the oil used in the palace with your Xu family's oil."

He didn't talk nonsense, the Xu family's oil is now famous, fragrant and easy to use, Li Shimin advocated frugality, and had planned for it a long time ago.

Xu Changsheng's face was full of smiles, no wonder it was revealed between the lines that he was asked to give a gift. This gift must be given, and it must be given as a good gift.

The palace has a large population, and there are many servants. Consumables such as soap and cooking oil have to be bought year after year. If they all use the products from their Xujia Village, they can make a lot of money.

This is the biggest transaction since he opened Xu's Supermarket, and the franchise stores are not so rich.

Xu Changsheng straightened his head, "Eunuch, go back and tell Your Majesty that Changsheng will definitely prepare a satisfactory birthday gift for Your Majesty."

The father-in-law's face turned dark, "Where is the Xu family, His Majesty can let you give a gift from a commoner? Besides, can His Majesty appreciate the gift from a commoner?"

After speaking, he flaunted his power and left upright.

Xu Changsheng: "..."

He didn't leave early or late, but he waited for him to understand before leaving, and even scolded him righteously.

These ancients really love face.

Xu Changsheng complained a few words, then frowned.

What birthday gift should I give?

If he dared to give gold and silver, it is estimated that His Majesty Li Er could really hang him up and beat him, he knew bribery at a young age.

It is difficult to give gold and silver, and it is a gift to the emperor.

Looking at the date on the invitation, there is still some time, think about it slowly, he still doesn't believe that a modern person can't think of a birthday gift that would surprise the ancients.

……

Let go of the issue of His Majesty Li Er's birthday first, he is going to start his greenhouse planting now, and he wants to turn the cultivated land in Xujia Village into a greenhouse base.

Counting the time, it was also the time of wheat harvest, and he could plant freely after harvesting the wheat.

A greenhouse must have a plastic film, which is the cheapest and most convenient material to build a greenhouse.

Moreover, because of the hot weather, the shelf life of snacks such as dried beans, pickled peppers and chicken feet produced in Xujia Village is getting shorter and shorter. If you can make a well-sealed plastic bag and vacuum it, the shelf life of these snacks can be greatly improved. .

At present, other Xujia supermarkets in Datang Shidao have not yet started selling dried tofu and pickled pepper chicken feet because of the shelf life issue. They are still mainly selling oil. Don’t underestimate these small things. Profit out of plastic urgently.

As for how to get plastic?

With a twinkle in Xu Changsheng's eyes, he ran to call a lot of children in Xujia Village, each with a basket in his hand, and then walked towards the back mountain.

The so-called relying on mountains to eat mountains depends on water to drink water, Xu Changsheng probably understood the meaning.

On the back mountain, a group of children were collecting resin from the trees. The weather was so hot that the grease was exposed.

However, there is not much natural oil. Fortunately, the mountains behind them are full of trees, and they can collect a lot after collecting them for a while. Of course, a group of children can't go too deep, because there are wild beasts in the mountains.

"Changsheng, what are you doing?" A group of children gathered around.

Xu Changsheng was cutting a gap in a tree. In fact, he just cut a piece of bark without affecting the growth of the tree. More resin can be collected."

"Oh, but what's the use of this thing? It's sticky, and it can get a lot of dust on your hands, but it looks good, just like gems."

Xu Changsheng smiled, "You will know when the time comes."

After collecting the resin for a day, I didn’t actually collect much, but next time I should be able to collect a lot, because after cutting a piece of bark on the tree, the resin will come out of the hole.

After returning home, Xu Changsheng began to experiment.

Calling the uncle of the clan to help, he moved the pot to an open place outside and started to boil the resin.

Because the smell of boiled resin, if it is in a closed place, I am afraid it will disgust several people to death.

In order not to pollute Xujia Village, they moved the pot directly outside the village.

To cook the resin to be crystal clear, the temperature must be right, otherwise it will be blackened. Do you know what the resin looks like and smells like?Just try burning a plastic bag.

Now there is no temperature control system, so we have to try it manually.

So... failure is inevitable.

A group of children ran away in fright, "It smells so bad, Changsheng, what are you cooking? You can't use the pot for cooking anymore."

Who said no, it was too stinky, Xu Changsheng also covered his nose, it was almost poisonous, the fire was a little bigger just now.

In addition to a group of people from Xujia Village, there are actually a few Taoist priests hiding in the distance to observe. Now these Taoist priests dare not go to that valley at all, because according to the analysis, there are very likely monsters in that valley, and they are still monsters that can take people's souls away. Now they are divided into two groups, staying all the way to continue to observe the hidden secrets of Xujia Village, and a group of people go to Chang'an to see if they can invite Daoist Yuan Tiangang to come out.

I didn't expect them to stay, and I really discovered something amazing for them.

Several priests looked at each other, "They must be doing some evil witchcraft."

"The magic, it must be the magic, I can smell the evil in it from so far away."

"Look, there is a demonic aura."

These Taoist priests were really skilled, but Xu Changsheng and the others didn't realize it at all.

Xu Changsheng sighed and burned a pot, but it doesn't matter, he still has resin, keep trying, this time the temperature is lower.

Throw out the disgustingly black pot, pour in new resin, and start boiling.

The uncle of the Xu family looked at the black thing that was poured out, and he was also terrified. Doesn't this thing look like a good thing?

It is indeed not a good thing, even if it is buried in the ground, it will not decompose for thousands of years.

Xu Changsheng simply set it on fire.

Fortunately, there is only one point. He will teach an environmental protection course in the future to teach everyone how to dispose of plastic products. The emergence of this thing has advantages and disadvantages, but everything has two sides, and one cannot just look at the disadvantages and ignore the advantages.

He later made a recycling system specifically to decompose these plastics. (The protagonist is from the modern era where quantum teleportation can teleport to the moon, and it is no problem to decompose plastic.)

Light the fire again and bring it to a boil.

This time is different, the things in the pot are crystal clear, just like the caramel they fry when they make cola and herbal tea.

This……

How can the same thing be so different?

Xu Changsheng was overjoyed, the temperature was right.

Then take a board and brush and brush the warm gum onto the board.

After the temperature cools down, the gum on the board solidifies and becomes a transparent thin piece.

Although it was a bit rough, it was transparent enough to cover a greenhouse. As for the plastic bag used as packaging, he had to improve it, at least to make an artificial machine for blowing bags.

The artificial machine for blowing pockets is actually not difficult. The principle is the same as blowing balloons and chewing gum. It can be made into a hand-operated hair dryer.

Xu Changsheng grinned, and pointed to a thin piece of wood, "Uncle Clan, just follow the steps I just gave birth."

Everyone was stunned, completely unaware of the use of this, but the things made by the little fairy must be good things, so they nodded.

Resisting the pot, he picked up the unfinished resin and walked back.

After they left, a group of Taoist priests came to check.

"See what kind of magic they are doing?"

"It's too far away to see clearly."

There was nothing left at the scene except for the weird smell.

In the next few days, I will go up the mountain to collect resin and make plastic film.

By the way, the wheat in Xujia Village has also begun to be harvested.

Just pile it on the cement road to dry.

Xujia Village has turned into the color of wheat.

But, the technology for harvesting wheat is not very advanced, so the yellow wheat leaves and dust of the wheat seeds are all mixed together.

Xu Changsheng frowned when he saw it. It was so dirty, how could it be smashed into flour and eaten as gnocchi?

He will not dare to eat gnocchi in the future.

The uncle of the Xu family didn't mind at all, "It used to be like this, it couldn't be cleaned up."

Xu Changsheng thought, who said that?

Run to find Uncle Sixteen.

He had to get a manual windmill out and make sure to separate the wheat from the dust blades.

Finding Uncle Sixteen, writing and drawing, the two played mysteriously for a day.

A group of children also ran to help.

Where Xu Changsheng is now, these children must be there.

After a few days, a strange shape appeared in front of everyone.

"Chang Changsheng, is this a wooden horse, can it run by itself?" A group of children were very curious.

This thing is indeed a bit like a horse, but it is not used to run on the ground.

There are quite a few people watching the excitement in Xujia Village.

Xu Changsheng happened to teach them how to use it, and said, "This is called a hand windmill, and you can use it to clean the wheat in the future."

In fact, the principle of the hand-operated windmill is very simple. It is to shake the blades by hand to generate wind force, and the wind force will blow away all the dust blades that are lighter than the weight of wheat.

Let the uncle of the family pour the sun-dried wheat into the upper mouth with a bucket.

Another clan uncle was shaken evenly, generating wind force.

Turn on the switch, let the wheat fall in the windmill box little by little, and the wind generated blows through.

Use a container under the windmill to catch it.

Then the people in Xujia Village saw a miracle.

Clean particles leaked out of the windmill, while dust and blades were all blown out from the tail of the windmill.

Looking at the wheat without impurities, I have never seen such clean wheat.

A group of children's eyes are wide open, what kind of monster is this, so amazing.

They used to think that the group of bean-eating monsters in the back mountain was magical enough, but now this wheat-eating monster is even more magical.

Xu Changsheng smiled, "I'll ask Uncle Sixteen to make more. In the future, the sun-dried wheat will be blown away with this windmill. Our Xujia Village doesn't eat dusty things."

"That's right, we in Xujia Village don't eat dusty things."

Such a delicate life, I am afraid that they are the only ones in Xujia Village.

A group of children are obsessed with trying to shake the windmill, and adults don't need to intervene in this farm work.

A bench was brought, and a child filled the wheat with a bucket, stepped on the stool, and poured it into the windmill.

A child stepped on a stool and shook the windmill vigorously.

I did it in a good way, and I was still competing to do it. I found it very interesting.

A windmill is definitely not enough even if it is kept day and night, so Uncle Sixteen has to make some more.

After teaching the people in Xujia Village how to use the windmill, Xu Changsheng left it alone.

Many of his plastic films have been produced, which are large and transparent, and have good airtightness.

As for the machine for blowing plastic bags, Uncle Sixteen also made it.

A small machine, the principle is similar to a hand windmill.

Pour warm gum into the mouth, then start to shake, and you can blow out pockets like chewing gum.

When the gum is blown out, it is basically cooled, so there is no need to worry about sticking together after deflation.

Then there is the vacuuming machine, just reverse the principle of the windmill.

Put the dried tofu into the bag, then put the bag on the machine, and shake the rocker by hand to suck out the air.

Of course, this manual vacuum machine is definitely not comparable to modern vacuum machines.

It is very rare under the current conditions.

Xu Changsheng smiled as he looked at the packs of dried tofu and chicken feet with pickled peppers. These are all money, and they can finally be shipped to Ten Dao of Tang Dynasty other than Chang'an for sale.

Said, "In the future, we will not buy oiled paper to pack these, but change them into plastic bags. Remember to set up an advertising sign saying that we also recycle plastic bags."

This is also as environmentally friendly as possible, and the second use of plastic bags can also save a lot of money.

The uncle of the Xu family nodded quickly. In the past, oil paper was bought, and oil paper is also paper, which is not cheap. Now that you can save a lot of expenses, why not do it.

He has improved the production process.

After looking at the process that has already started to scale, he found no major problems, so he went to get his greenhouse.

Call some uncles, bring his plastic film, and the bamboo strips that have already been cut.

These bamboo strips are used to build the frame to support the plastic membrane.

In modern times, iron frames must be used, but in Datang this is unrealistic.

The iron tools in Xujia Village are all agricultural tools, kitchen knives and the like, which are just enough to meet the needs of life. Even if he melts them all, he can't make one or two iron frames.

As for smelting iron by himself, it would be too long. It is estimated that in a few days, his Xujia Village will be crushed by the army of Datang.

Datang's restrictions on ironware are not very strict, but they are only limited to agricultural equipment, etc. If you have forged a few weapons by yourself, you can see that Datang's organization will not give you a chance to go to jail, just click.

Xu Changsheng led a group of clan uncles to the Xu family's farming land in full swing, and of course a group of children behind him was indispensable.

If he wants to grow the crops he wants anytime and anywhere, and plant them out of season, he must create a greenhouse base.

Since it is going to be done, why not scale it up a bit.

The mighty group of people puzzled the Taoist priests who were hiding and observing. What are the people in Xujia Village doing?It's becoming more and more incomprehensible, how do they feel, they will be a little frightened every few days.

The bamboo strips were inserted into the ground in an arched shape, in order not to be blown away by the wind, only the height of two people.

Then cover with a highly transparent plastic film.

In full swing.

Soon, strange white sheds appeared in the wilderness, and there were more and more of them.

Several Taoist priests were dumbfounded, what are they doing?

They become more and more unable to understand, and feel more and more mysterious in their hearts. Mysterious things are always scary.

The speed of building a greenhouse is very fast, but the Xu family has a lot of cultivated land, and it cannot be completed in a day or two.

Xu Changsheng led a group of children into the shed one by one, just in time for these children to help check the airtightness one by one.

After a few days, looking from Xujia Village to the distance, you can see these white houses one by one, um, big sheds, Changsheng said these are called big sheds.

The current Xu family's cultivated land has really become a veritable greenhouse base.

What's worse is planting.

Xu Changsheng immediately sowed the beet seeds, watered them, and felt the temperature.

With this humidity and temperature, it will germinate soon, and then it will be enough to plant the seedlings separately.

Seedling breeding is very important, so Xu Changsheng has to check it himself every day.

It is a pity that thermometers and hygrometers cannot be made at the current level, otherwise it would be convenient.

Of course, in addition to beets, he also planted a lot of condiment plants. Although his devil pepper is very spicy, you can use a little at a time, but it is almost used up, so you have to plant a lot of it. Of course, onion, ginger, garlic, and peppercorns must be planted.

There are also fruit trees. Now there are not enough fruit trees in Xujia Village. They can't even eat enough for themselves, let alone use them to make fruit popsicles.

All have to be planted.

Regardless of the fact that Xu's [-] households seem to have a lot of arable land, they can be planted in this way and in that way, but they are all arranged.

Of course, beets are the most grown ones, and his popsicles should not have a trace of bitterness. Geranium sugar has too many impurities and is expensive, so I hate it.

Xu Changsheng led a group of people to water the beet seeds, and now they are still beet seeds, just a group of children watering them.

Humidity must be kept high, as must temperature, so that germination will occur quickly.

If there is no greenhouse, the cycle will be very long in normal farming. The two most obvious advantages of greenhouse planting are that the first off-season and the second short cycle.

A group of children followed Xu Changsheng, wiping their sweat. To be honest, the temperature in the greenhouse was very high and there was no ventilation, which made it uncomfortable.

But the happy expressions on the faces of a group of children can't be concealed. They don't know much about it. They only know that they are planting things. But with Changsheng, they are so happy, as if no matter how hard or tired they are, they become fun. .

It’s too hot, so they just take a sip of Coke or herbal tea. When they went out, each of them took two bottles. When they drank water, their eyes were smiling. Such a delicious drink.

From time to time, he raised his head to look at the sky, and several figures hovered in the sky.

These are their cousins ​​from Xujia Village. They are so envious that they can fly in the sky every day.

But Changsheng said that when their cousins ​​are ready to train, they will take them to fly, but they can't wait to die, and go to ask when they will be trained every day.

Xujia Village looks really weird now, the ground is covered with this kind of white plastic houses. Of course, people in the Tang Dynasty definitely didn't know what plastic was, and they would only wonder what these strange-looking things were.

In the sky, there are people hovering in the sky all day long. The favorite sport of the young people in the Xu family is hang gliding. Now they have made a lot of hang gliding, and a bunch of young people are flying in the sky.

If people who don't know about the paragliders in Xujia Village see so many flying people in the sky, they will probably faint from fright.

Not to mention people who have never seen a hang glider, even if they have seen it, they are like those Taoist priests who are hiding. When they look at the figures hovering in the sky every day, they can’t help being dazed and stupid. I don't know when I will be able to adapt.

The half-grown children who are older than children and younger than these young people like to ride bicycles. Xujia Village has left a lot of bicycles. with.

Moreover, making money is not just to improve the life of Xujia Village. Of course, these things should be given priority to the children of Xujia Village. They even spontaneously formed a caravan. To a group of riders in uniform.

The adults of the Xu family sometimes stop to look at these youthful riders, they are all young people from their Xu family village.

It was very difficult for the young people in their Xujia Village to find a wife in the past, but now let those people look at them again, and see the young people in Xujia Village who are full of confidence and vitality, and they can't help liking them.

The young people in their Xujia Village have a different temperament now.

……

Within a few days, the beets in the greenhouse sprouted, and a group of children screamed with excitement.

"Chang Chang Sheng, what are we planting this time?"

Xu Changsheng only answered one word, "Sugar."

"Ahhh." Then there was a scream.

Even a child knows that sugar is so expensive, "Maybe we can eat sugar every day in the future?"

Eat every day?He won't eat all your teeth, and of course he can't discourage the enthusiasm of these children. He replied, "You can eat as much as you want."

A group of children went crazy, their eyes were full of green light when they saw those beet sprouts, and they wished they could stay by the side of these beets every day.

So, not long after, everyone in Xujia Village knew that the little fairy was planting sugar in the field. Although what they saw was clearly a plant they had never seen before, but the little fairy said so, it must be reasonable , the people in Xujia Village were also very happy, sugar, that is a good thing, expensive.

The beets are growing well, and soon it's time to divide the seedlings.

Because they planted too much, it would be impossible for a group of children to divide the seedlings, so they had to ask the adults of the Xu family to help them plant the raised seedlings in other greenhouses.

In this way, the task of watering every day is even heavier.

In order to get it done once and for all, Xu Changsheng had to ask his uncle to buy a lot of water pipes to bring the tap water to these fields, which cost a lot of money.

Of course, this is something for later, they are still dividing the seedlings, and they have to run back to Xujia Village to bring the water to irrigate.

Most of the cultivated land in Xujia Village is connected together, but not all of them.

For example, the area where Xu Changsheng is now is far away, halfway up the mountain.

Xu Changsheng came here because none of the beets planted in this field were alive and all died.

Seeing the dead beets all over the ground, a group of children almost burst into tears.

The expressions of a group of adults were not very good-looking, "This land has not been able to grow anything before, and it has been abandoned."

Xu Changsheng's farming method is completely different. They just wanted to try it, but they still couldn't grow it.

It's a pity that the seedlings in this place sighed.

And Xu Changsheng frowned and looked at the dirt tightly.

The soil is black, and the color of the soil in other places is obviously different, and there are obviously some black particles.

This is……

The adults of the Xu family were still saying, "This is the cursed black soil, exactly the same as the black soil in the mountains. Nothing can grow, and no grass will grow."

Cursed black earth?No grass grows?

Xu Changsheng moved his eyes and said, "Take me to have a look."

Uncle Xu family nodded, not too far away, just a little above this land, the soil of this land collapsed from above.

Xu Changsheng looked at the cursed black land that his uncle said, and indeed there was no grass growing.

But his eyes lit up.

Do you know how to describe a person rich in modern times?It is said that his family owns a mine.

In front of Xu Changsheng, there were all black coal mines, and of course not a single blade of grass could grow.

Perhaps it was the crustal movement or something that squeezed out the underground coal mines and exposed them to the ground, forming a large open-pit mine.

With the scale of this open-pit mine, there should be more underground.

Fat hair, Xu Changsheng's eyes were shining, he actually found a vein of minerals.

The mountain behind Xujia Village is really a gift of nature, a natural treasure.

Even if he doesn't do anything else, he has to pay for the operation of this mountain coal mine.

However, there is a problem now that this land and this mountain do not belong to their Xujia Village. If it is mined, the government will definitely stop it.

Xu Changsheng frowned, then rushed back to the village to find his grandfather.

Grandfather Xu Wenyuan looked at Xu Changsheng in a daze, "You said, do you want to buy that mountain?"

The wealth of the Tang Dynasty was calculated based on the land. Whether a family was rich or not depended on how much land the family had. Even the imperial court had to make great contributions to reward the land.

Therefore, land represents wealth, and it is not cheap.

Xu Changsheng nodded, "The black ore on that mountain is of great use. As long as our Xujia Village owns that mountain, we can truly become rich."

Seeing what Xu Changsheng said, the great grandfather had no reason to refute. He was not good at management, so Xu Changsheng had to decide everything.

Said, "In that case, I'll ask your uncle to go to the Chang'an county government and let him buy it."

Xu Changsheng burst into laughter, and said again, "Let uncle buy some water pipes and connect them to the field. Watering is too troublesome now, and it will take time."

Grandfather: "..."

Their Xujia Village makes money fast, and spends money like flowing water. Last time they bought water pipes, they spent a lot of money, and now they are doing it again.

But it is really time-consuming to go to farm and water now, and it will definitely delay their production after a long time, so the money has to be spent.

The great grandfather waved his hand, "Just let your uncle handle it."

They counted the money for a long time, and went out again without warming it up.

Xu Changsheng didn't mind at all, money is only valuable if it circulates, and the house is a pile of broken copper and iron.

Xu Changsheng wrote a letter and asked his uncle to send it to Uncle Chang'an in a hurry, telling him to buy the mountain as soon as possible no matter what.

Uncle Xu Zheng went to Chang'an Mansion right away. The county magistrate Su Tongzhi took a stack of land deed documents, looked at them again and again, and thought, is the Xu family stupid?It was clearly written on the land deed that the land there was waste land, and even crops could not be grown, so the Xu family actually designated to buy that land.

Su Tongzhi said, "Have you thought about it? Do you understand the situation of that land?"

Uncle Xu Zhengxin said, he doesn't understand, but Changsheng must have his reasons for buying, so he nodded.

Only then did Su Tongzhi feel relieved, if he made a mistake, even if he sold the land, he would have the reputation of oppressing good people, which would be bad.

Both of them laughed, and Su Tong thought in his heart that he didn't receive the Xu family's tax, but sold them a piece of useless land, which was considered tax credit.

Uncle Xu Zhengxin said, at first he thought he had to play around, but he didn't expect to buy it so easily.

This is a land sale by the government, which is somewhat different from a private land sale.

……

Not long after, Xu Changsheng got the land deed specially brought back by his uncle Xu Zheng.

Hurry up and get people to dig coal mines and come back.

Coal mines are a good thing.

First of all, the fire kilns in their back mountains can no longer use firewood, and they consume a lot of firewood a day.

What's more, in the past, many ideas could not be realized due to the insufficient temperature of the kiln, but now they can also be considered.

What's more, it is also the simplest, he has to make honeycomb coal, and honeycomb stove can also be made, I believe it will be very popular in Chang'an.

As for the pollution from burning coal?A large amount of coal used in industry is very polluting, but if it is used for domestic use, it is much less polluting. Which is more polluting than burning firewood?unknown.

Honeycomb coal and honeycomb stove, this thing is ready, and eating hot pot can be comfortable.

Moreover, Chang'an is not as convenient as Xujia Village, where it is so convenient to use fire kilns to provide hot water. If they have briquettes and honeycomb stoves, it is also convenient for them to use hot water.

The advantages are much more than the disadvantages, so we can't just look at the pollution it produces. Of course, we must also remind the purchasers not to use it in a confined space, otherwise the consequences will be dire.

Honeycomb coal is easy to make, as long as the crushed coal mine is poured into the mold, there is no technical content.

The same is true for honeycomb stoves. They have cement and can make them directly.

Xu Changsheng desperately found Uncle Sixteen and made him a honeycomb stove.

A group of people from Xujia Village came to watch again, "Changsheng, what kind of thing are you making?"

"This is a stove..." Xu Changsheng elongated his voice, "It can be used for cooking and boiling water, which is very convenient."

Everyone was stunned, looking at a honeycomb stove the size of a bucket, "Is there no place to put firewood? And it's so big, the fire can't burn well, right?"

"Changsheng, quickly show us a demonstration."

Xu Changsheng had already asked his uncle to bring some of the briquettes that had been prepared.

Said, "My stove doesn't need firewood, and it can burn for a day."

No need for firewood, can burn for a day?

What kind of fairy stove is this?

Xu Changsheng began to demonstrate, "First, light the first honeycomb coal, and burn it in the fire of any house that has a fire."

What he is now is just lit at someone else's house.

Put the burned briquettes into the stove, and then add another one on top, with the holes facing the holes, so that the gas can flow freely.

"When burning, open the ventilation cover below." Xu Changsheng showed, "If you want to burn faster, just fan the ventilation hole."

Xu Shengsheng took a wooden board and fanned it vigorously. After a while, the fire on the stove was lit.

Put a pot on it in a decent way.

"When not in use, cover the lower cover well, and you don't need to ignite the fire again. The fire can never go out. If the briquette is burned through, just replace it with a new one."

Following the explanation, the water in the pot also boiled.

"How? Simple."

A group of people watched in a daze. They were sure that no firewood was put on the fire, and the water in the pot boiled.

Xu Changsheng held up a briquette, "This kind of one can burn for a very long time."

A group of people waited and waited, and sure enough, they saw the briquettes in the mouth of Changsheng in the stove, which kept burning, but they just wouldn't go out.

"How much firewood does this have to save?"

"Yeah, the wind and the fire are quite big."

Tsk amazed.

Honeycomb coal is a good thing, it does save firewood, and it is convenient.

A lot of people in Xujia Village are still waiting to see how long a briquette can burn.

The more I look at it, the more I feel amazing, and the more I look at it, the more I like it. No matter how they burn the firewood, it is impossible to burn it for so long, and Changsheng said that when it is not in use, cover the lower cover, and it can last longer. Put a pot of water in the pot , but also hot water at any time.

Xu Changsheng said, "People in Chang'an definitely like it more than us. The next product in our Xujia Supermarket is it."

People in Chang'an buy a lot of firewood every day, and it takes up a lot of space at home and is not beautiful. With briquettes, it is different, it does not take up space, and it is easy to take care of.

It seems that Xujia Supermarket already sells a lot of things, but if you count them carefully, there are really not many. Among modern supermarkets, which one only sells a few items?So really not enough.

Moreover, Xu's Supermarket now sells products for the people's livelihood except for bicycles. The richer the better, the more convenient the lives of the people of Tang Dynasty will be.

While a group of Xu family members were still surrounding the stove to observe how long the briquettes could burn, Xu Changsheng ran away.

He ran to the back mountain fire kiln.

Because some uncles there have already started to use coal instead of firewood.

Xu Changsheng ran over, "How is it?"

Uncle Clan frowned, "Not enough firepower."

Xu Changsheng was taken aback, how is this possible?The firepower of coal is definitely greater than firewood, do you know how much?

If you take a closer look, you will know why.

There is not enough oxygen.

Because the space of the fire kiln is not large, the wind blowing in is not strong, resulting in insufficient oxygen.

You have to make a bellows that blows air inside.

Xu Changsheng went to find Uncle Sixteen to make bellows again.

Uncle Sixteen already had some clues about this thing, so he did it very quickly this time.

A large bellows was quickly made according to Xu Changsheng's request, carried to the back mountain, and installed.

This time the bellows are not shaken, but push-pull.

When pulling, the wind enters from the back, and when pushing, a piece of cloth is used to cover the air inlet, and the wind enters the furnace from the air outlet on the side of the bellows.

Uncle Zu tried it, and his eyes lit up.

The fire in the kiln was burning vigorously, and the color of the flame was higher than that of firewood.

The key is that you don't need to add firewood all the time, and the coal will keep burning, as if it will never go out.

"It's so convenient."

Xu Changsheng nodded, no one said otherwise.

"I just don't know how strong the firepower is?" said the clan uncle.

Xu Changsheng's eyes lit up, "You'll know if you try it."

I ran to ask for a few hoes, and threw the iron part into it.

Uncle Clan was taken aback, "Could it be possible to melt iron?"

Xu Changsheng didn't answer, but pointed to the fire kiln.

The iron block slowly turned fiery red.

With the continuous agitation of the bellows, it actually began to turn into molten iron.

"It can really melt iron, and the temperature is too high."

After finishing speaking, he said, "It's just a pity for a few hoes, iron is precious."

Xu Changsheng was also taken aback, yes, for the sake of experimentation, he melted the hoe.

One eye movement, don't waste it.

Smiling, "I'll make it into something good."

Without doing anything, I went to move a lot of hoes.

The uncle of the clan was stunned for a while. He said just now that it should not be wasted. Why did he throw iron pieces in it? It hurts to see it.

The good thing Xu Changsheng said was actually an old-fashioned popcorn machine.

A jar for the mold.

So the appearance is a bit ugly, but it doesn't matter, as long as it can be used.

Uncle Sixteen processed it again, and then formed a popcorn machine with an iron frame with a rotating iron jar sandwiched between them.

When Xu Changsheng asked his popcorn machine to be carried back arrogantly, a group of children ran along curiously.

"Changsheng, what is this iron lump?"

Xu Changsheng smiled, "Do you want to eat something delicious?"

A group of children screamed suddenly, their eyes were shining, they like Changsheng to make delicious food the most.

I found an almost empty place and fixed the popcorn machine.

It just so happened that the wheat in Xujia Village had finished drying, let him pop a few baskets of popcorn.

In fact, his favorite is corn-flavored popcorn, so let's just leave it at that.

将小