Otaku Engineer in Great Tang Dynasty

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The dark and heavy briquettes were placed in the flaming charcoal fire. The charcoal basin that was very warm was blocked by a part of the spark, and it suddenly became not so warm!

"Xuan'er, there is no shortage of charcoal in our house. What are you doing here with so many briquettes? It's hard to burn this thing!"

Li Jingmo frowned.

Although the shape of the briquettes Li Zexuan sandwiched was somewhat different, coal was coal. In Li Jingmo's opinion, no matter what shape it was, there would be no charcoal to burn.

Li Zexuan said with a smile: "Father, it's true that our family can afford to burn charcoal, but most of the people's homes can't afford it! Your son is accumulating good deeds! Besides, this honeycomb is not only used for burning fire, you see All right!"

Seeing that his son was going to be stubborn to the end, Li Jingmo shook his head and no longer discouraged him.

On the other hand, Mrs. Li was very attentive. She asked softly: "Xuan'er, your briquettes and stoves are specially designed for poor people? If that's the case, mother supports you! I don't know how many people will freeze to death in Chang'an every year, you This is a matter of infinite merit!"

Women generally believe in cause and effect. Besides, since Li Zexuan was rescued by the real person Lingxu, Mrs. Li has become a loyal Taoist believer. At the end of every month, she will go to Xuanduguan to pray for the safety of her family!

"Xiaoxuan, grandmother supports you too! As the saying goes, if there are three good things in one day, the sky will bring blessings in three years; if there are three evils in one day, there will be disasters in the sky in three years! The Li family is now a rich and noble family. Doing good deeds will make you rich!"

Old lady Ye patted Li Zexuan's arm and smiled kindly.

The four generations of the Ye family have cultivated Taoism, and under the eyes and ears of the old lady Ye, many Taoist teachings have been engraved in her heart. She believes in the cycle of cause and effect more than Mrs. Li!

"Oh! Thank you mother! Thank you grandmother!"

Li Zexuan smiled.

He doesn't really care about the cycle of cause and effect, and good deeds are rewarded. He does good deeds just to find peace of mind for himself!

After a while, blue-yellow charcoal flames rushed out along the coal hole, and the inner wall of the coal hole was also burned red. Li Zexuan exclaimed a little excitedly: "Okay!"

Then he used tongs to pick up the briquettes in the charcoal basin and put them into the coal stove carefully. Then he piled another briquettes on top of the briquettes, and the coal holes between the two briquettes just overlapped.

After everything was over, he looked at Li Jingmo and said with a smile, "Dad, how is it? This honeycomb burns not much slower than charcoal, right?"

Before Li Jingmo said anything, Ye Guozhong stared at the several briquettes scattered on the ground in surprise, and said in amazement, "It's amazing! This seemingly useless piece of coal was so easily burned by Xiaoxuan! This can really be regarded as a means of turning a stone into gold!"

The price of charcoal in the Tang Dynasty was not cheap at all, especially in the early Tang Dynasty. It is recorded in "Old Tang Book" that "there are tens of thousands of volunteers, and in the capital, woodcutters are expensive but cloth and silk are cheap." It is said that at the beginning of the Tang Dynasty, due to the initial establishment of the country, all the rebels from all over the country were concentrated in the capital. The case for rising fuel coal prices.

Although the price of goods during the Zhenguan period was cheap, the price of charcoal was basically maintained at about seven or eight hundred yuan per stone (one hundred catties), and the price of good smokeless willow charcoal was even more expensive!

Don't think that seven or eight cents per pound of charcoal doesn't seem expensive, but this thing is a consumable! How long does a pound of charcoal last?

For a wealthy family like the Li family, they don't care about the charcoal money, but for the common people, burning charcoal is equivalent to burning money! How many can afford to burn?

The Taoist poet Cao Tang in the late Tang Dynasty described the kitchen in fairyland in his "Ninety-eight Poems of Xiaoyouxian": "What kind of things are the chefs and maids cooking, the stove is full of smokeless jade charcoal red."

In Cao Tang's view, cooking rice with charcoal is just a wonderful fantasy in fairyland. This poem just proves a reality of the use of charcoal at that time, that is, how difficult it is for ordinary people to use charcoal for cooking. matter.

In fact, in the Tang Dynasty, the consumers of charcoal were mainly the upper classes of society. Charcoal was supplied in the salaries of the imperial relatives and the first to fifth-rank Beijing officials at that time. During the Tianbao period, Tang Xuanzong even set up positions such as accountants in the court to be specially responsible for related charcoal affairs, and in the court, there was also a special post of charcoal envoy to take charge of related affairs.

It is based on this that Ye Guozhong would say that the honeycomb made by Li Zexuan is a means of turning stone into gold! After all, those coals were difficult to burn before, how was it different from stones? But now that Li Zexuan has done it like this, he is completely turning waste into treasure, turning stone into gold! There is some great wealth behind this briquettes!

"What makes a stone turn into gold? This is obviously an infinite merit! Xiaoxuan, this honeycomb should be cheaper than charcoal, right?"

Old lady Ye patted Ye Guozhong's arm, then looked at Li Zexuan and asked.

Li Zexuan nodded with a smile: "Of course it's cheap, and it's a lot cheaper! Grandmother, even if you sell this honeycomb for a penny, your grandson will not suffer!"

He is now a real local tyrant with a "mine at home". For him, only the manpower and transportation costs need to be considered for the honeycomb coal. If it is evenly distributed to each honeycomb coal, the cost is pitifully low! For a penny, he really can't afford to lose!

"Yo~! One penny? That's really cheap~!"

Mrs. Ye also has good eyesight. She felt that a briquettes of briquettes would be worth less than a pound. The price of less than a penny a pound is not too cheap compared to charcoal!

"Yeah! Brother! The briquettes above are also burning! It's so warm~!"

Laner stared at the coal stove for a long time, then suddenly she screamed, her little hand was touching the outer wall of the coal stove to keep warm, her little face was full of excitement!

Li Zexuan took a look, then picked up a piece of honeycomb from the ground and sent it into the coal stove. At the end, he said: "This stove usually needs to put three honeycombs at the same time, so that the heat in it can be transferred to the mouth of the stove! Now it's down below. The two briquettes are already on fire, and the one on top will burn faster! Xiao He, go to the kitchen to get me a copper pot and fill it with water by the way~!"

"...Yes, young master~!"

Xiao He responded and hurriedly pushed the door out.

Ye Fashan guessed Li Zexuan's intention and asked, "Cousin, is this going to boil water on this stove~?"

"Yeah! That's right! In addition to being used for heating, the biggest use of this honeycomb is to boil water and cook rice! And its advantages in this regard cannot be replaced by charcoal~!"

Li Zexuan replied with a smile.

After a while, Xiao He came back with a copper kettle.

The kettles of this era are either made of pottery or copper, but their appearance is still very different from that of modern kettles. Li Zexuan is too lazy to care about these things now, as long as it can be used to boil water for him.

Put the copper pot on the mouth of the coal stove, and opened the lid of the ventilation hole of the coal stove. After a while, the fire became more vigorous.

In less than half an hour, there was a "squeaking" sound from the kettle.

Mrs. Li was surprised: "This honeycomb burns water really fast, much faster than firewood!"

Li Zexuan responded: "Mother! This thing not only boils water quickly, but also lasts a long time. Don't look at the fact that there are only three briquettes in it, but if it is only used to boil water, a piece of briquettes can burn for more than three hours at most before and after, which is a total of Need to replace four briquettes!

If you just keep the briquettes burning, leaving only a small hole in the vent of the briquettes, one briquettes can burn for about six hours, and only two pieces of coal need to be replaced a day. This will save you the hassle of starting a fire every time! "

Combustion requires a certain environment: combustibles, oxygen, temperature. A single briquettes cannot burn because it cannot maintain the temperature. The briquettes can be burned normally in the furnace, and at least two briquettes are required in the furnace. Generally, three briquettes are needed at the same time for the household stove to boil water for cooking.

All of what Li Zexuan said was based on his experience.

In his previous life, his family had burned briquettes for at least ten years, so he knew the characteristics of briquettes very well!

Ye Yuzhu, Mrs. Ye and other people next to him were stunned when they heard Li Zexuan's words!

It only takes four pieces of honeycomb briquettes to burn for a day when the coal stove is on full fire, that is, four cents! If you burn charcoal for a day, it will cost hundreds of dollars at least! Four cents of money is worth a few hundred cents, this is a difference of nearly a hundred times!

And even if you don't use charcoal, you have to use firewood! The people outside Chang'an City can indeed go up the mountain to chop firewood by themselves, but the people in the city can only buy firewood with money! After all, the firewood money for this day is actually about the same as burning coal!

I have to say, this honeycomb is really saving money! And this thing has no smoke, I don't know how many times better than firewood!

"Xuan'er, this is a good thing! You don't know how easy it will be to boil water for cooking with this coal stove and briquettes! If this thing is sold, people don't care whether the family has money or not, Definitely grab it!"

Mrs. Li said with a wide-eyed smile.

When she married Li Jingmo in the early years, she went from being a wealthy eldest lady who never touched the sun to a virtuous wife who could go to the hall and go to the kitchen. She knew the difficulties of the kitchen best.

Before coal and oil were exploited on a large scale, hardly any energy source was as important as firewood. Among them, firewood is mainly used for cooking! That smoky taste is really a pain!

"Cousin! How much does this coal stove cost~?"

Ye Fashan asked suddenly.

Li Zexuan pondered: "This coal stove is made of pure iron, so the cost is naturally more expensive. The cost of each stove is about 150 yuan~! But the life of each stove is at least five years, five years. Basically there will be no problems!"

"One hundred and fifty cents... Five years! After careful calculation, it is indeed very cost-effective to use coal stoves and honeycomb briquettes to cook rice! But it is estimated that many poor people are reluctant to spend so much money to buy coal stoves at once!"

Ye Fashan, who is precocious, knows a lot more than his peers. He immediately sees the biggest obstacle that will be faced if the coal burning method is to be implemented on a large scale!

"Xuan'er, can we sell this stove to the common people at a loss? Anyway, our family is not short of money now, we should do good deeds!"

Mrs. Li has a good heart. After listening to Ye Fashan's words, she couldn't help suggesting to Li Zexuan.

"Mom! Although the child doesn't care about money, doing good is not the way to do it! There are thousands of poor people in this world, even if all the money in our family is spread out, it will not make a few waves! In the child's view, doing good We must also focus on sustainability. If you can’t do it this time, there will be no next time! Regarding the price of the coal stove, the boy will find another way, mother, you don’t have to worry~!”

Li Zexuan shook his head.

Those world-class rich people in previous lives, such as Bill Gates, donated almost all of their wealth to the fund in their name for charity after leaving office! At that time, they also persuaded Ma (yun) to donate all his property like them, but Ma's father did not agree, because Ma's father felt that if the money was donated and distributed to the poor, it would become dead money, and the poor would run out of money. that part

The money is completely gone, but the money in his hands is living money, which can be used to create more employment opportunities, help more young people start businesses, and even help more poor people!

Li Zexuan thinks that Ma's father's approach is very clever!

And he is indeed rich now, but not so rich that he can help all the poor in the world! Continue to accumulate strength, in order to continue to do good!

"Xuan'er is right! There are too many poor people in this world. If you try to help all the poor people, you will kill the chicken and get the eggs. It can't last for a long time~! It's just that Xuan'er said that there is still more. A better way, what's that way~?"

Li Jingmo has been in business for half his life, and of course he understands the stakes. He first agreed with Li Zexuan's opinion, and then asked again.

Except for Lan Er, everyone's eyes were turned to Li Zexuan.

Seeing Li Zexuan frown for a while, he smiled and said, "This method, I'll talk about it when I go to the palace tomorrow and come back! Now that we have a coal stove, let's eat hot pot tonight~!"

In the winter, the whole family eats hot pot around the stove, which is probably the happiest thing in winter!

In Li Zexuan's mind, the situation of their family eating hot pot during the Chinese New Year in the previous life could not help but feel a little sour in his heart.

"Hot pot? What is this hot pot? Can I eat it?"

Ye Guozhong had lived his whole life, but when he heard the word hotpot for the first time, he couldn't help but ask.

Li Zexuan was stunned, and thought to himself, is there no hot pot in this era? After searching for the memory of his predecessor, he quickly changed his words and said: "Cough! This hot pot is similar to antique soup, but this kind of hot pot I made will be more delicious! Madam, go, help my husband to prepare some food~ !"

According to the "Book of Wei", in the Three Kingdoms period, when Cao Pi became emperor of the Han Dynasty, hot pot made of copper had appeared, but it was not popular at that time. During the Northern and Southern Dynasties, people used hot pot to cook all kinds of meat, such as pigs, cattle, sheep, chicken, and fish. In the Northern Song Dynasty, the taverns in Kaifeng, Bianjing, had hot pot in the winter.

However, the hot pot at that time was not called hot pot, but antique soup. It is a unique delicacy in my country. In Bai Juyi's poem "Ask Liu Nineteen", "green ant new fermented grain wine, red mud small stove. In the evening, the sky is about to snow, can you drink a cup without it?" It vividly describes the hot pot at that time. scenario.

"Okay! Xianggong!"

Han Yuxi smiled and quickly got up and followed Li Zexuan to the back kitchen!

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