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Li Longji is more interested in solar cookers. After all, the old 100 surname everyday all needs to cook, and the demand for firewood and charcoal is very large, and it is just needed, especially in Chang’an City with a population of 1000000. If you need firewood and charcoal, you will be able to cook and boil water, which will definitely benefit the old 100 people. At the same time, it will also greatly reduce the pressure on the supply of firewood and charcoal in Chang’an City.

The 100 surnames of later generations, regardless of Spring, Summer, Autumn, and Winter, can be guaranteed to take a bath every 3 or 2 days. When the weather is hot, they can be washed several times a day. This is because later generations have sufficient fuel supply, solar water heaters and electricity. The water heater can supply enough hot water in a short time.

Great Tang does not have these advanced equipment. If you want to take a bath, you must use firewood to burn water. For a large city with a population of 1000000, such as Chang’an City, the amount of firewood that can be supplied is simply not enough to ensure that all 100 people are adequate. Use, cooking and boiling water is still barely, let alone boiling a lot of boiling water to take a bath.

In the winter, the rich nobles can only get a bath for a long time. The old man with a flat head is 100. Do n’t think about the opportunity to take a bath throughout the winter. Even the shampoo is extravagant. You can only comb your hair with a grate to clear it. Parasites above the head.

At the same time, as firewood and charcoal have always been in short supply, for this reason, prices have remained high, which, to a certain extent, has increased the living burden of the 100 old people.

Lumberjacks who make a living by cutting wood also do not make money at all, because the market of Great Tang is managed by officials, and any item sold must have an official business license. If the woodcutter enters the city to sell firewood, he is caught by the city management of Great Tang If you live, not only the firewood will be confiscated, but people will also be beaten. Don’t think that only the city management of the later generations are powerful, and the city management of the Great Tang is also coquettish.

In this way, the firewood cut by the woodcutter can only be sold to a few Aristocratic Family lords who are in charge of the firewood business, and then they are transported into the market of Chang’an City and sold to 100 people in the city. In operation, the huge profits are all obtained by several Aristocratic Family lords, thus making several Aristocratic Family lords more and more rich, further widening the gap between rich and poor.

In other words, once the solar stove invented by Li An is popularized, it will directly damage the interests of several Aristocratic Family monopolies that monopolize the firewood business.

But Li An is not afraid of these Aristocratic Family lords, and his invention is a good thing for the benefit of the world. No one has any reason to object, especially those who have a rib, and they will fully support the solar stove. Demonstrate your admiration for the world.

“Your Majesty, please see, this is the solar cooker newly invented by This Small Official.”

Li An pointed to the huge solar stove, proudly introduced.

“Well, it doesn’t look too big. It should be no problem to put it in the yard of the 100 family.”

Li Longji looked at the size of the solar cooker and felt that the home of ordinary old people with 100 surnames can be completely put away. That is to say, as long as the performance is qualified, it can be fully popularized on a large scale.

Several prime ministers such as Li Linfu and Li Shizhi were also very interested in solar stoves, and asked some officials about the common knowledge of solar stoves, and urged Li An to hurry up and test.

“Your Majesty, this is a pot of cold water. Would you like to try it.”

Li An first put his hands in the pot to show that the pot is indeed cold water.

Li Longji reached out and tried it, and asked Li An to hurry up.

Li An adjusted the solar stove to the sun and put a pot of cold water on it.

“Minister Li, so you can boil the water?”

Li Longji was quite puzzled, and several prime ministers were also very curious. They knew that sunlight can indeed make cold water warm, but then in summer, how the sun is shining in winter, cold water is also impossible, because the heat absorbed by cold water has not yet Disseminated fast.

“Your Majesty, this cold water can not only boil, but also much faster than using firewood. Your Majesty can just wait for a moment. Using this time, This Small Official will show Your Majesty another function of the magnifying glass.”

Li An picked up the magnifying glass and a piece of shredded paper, and focused the light on the center of the paper. Soon, the paper turned black, and then, with a hula, it burned up, and the flames flickered.

“This … this magnifying glass can actually be used as a fire fold.”

Li Longji and the ministers were all stunned, so that when the fire caught fire during the day, even the fire folds were saved.

Li An chuckled and explained the principles of convex lenses and concave mirrors briefly and roughly, without Emperor and Prime Minister understanding, as long as they let them know about it.

Within a small section of the time when the magnifying glass caught fire, the small pot on the solar stove had gu gu boiling sound. Li Longji and the prime ministers looked up and saw that the water in the small pot on the solar stove had been boiled Too.

“It’s so fast, it’s actually much faster than using firewood. It’s really a good thing!”

Seeing a pot of cold water with his own eyes, which was quickly heated by the solar stove to boiling water, Li Longji and several prime ministers were full of shock and joy. This invention was too important for Great Tang, and it was an invention for the benefit of the country and the people.

“Your Majesty, the solar stove burns more water than the firewood block, and the cooking is more delicious. This Small Official will give Your Majesty a small dish to try.”

Li An ’s cooking skills can only be regarded as a rookie in the later generations, but it can definitely be called expert in the Great Tang. After all, in the era of Great Tang, the main cooking methods are boiled, steamed and fire-roasted, and the taste of the food is made. It ’s really not that good, and Li An has more cooking methods, and the food is more delicious.

In order to demonstrate the complete function of the solar cooker in front of Emperor, Li An brought all the pots, shovels, chopsticks and other guys from the mansion, and of course, the seasoning is indispensable.

The first dish is fried poached eggs, which is just a common dish in later generations, but there is no such eating method in Great Tang. Some are only boiled. In order to increase the taste, some spices are also poured, but this How can it be comparable to the smell of fried poached eggs?

When the bottom of the pot is hot, Li An first pours in the right amount of oil. After the oil smokes, the whole eggs each and everyone are beaten in.

“Hey…”

The egg liquid made a pleasant frying sound in the hot oil, and a strong food aroma wafted around, so that Li Longji and the others who had not eaten lunch unconsciously started swallowed saliva.

After tumbling a few times, the three fragrant poached eggs were ready, sprinkled with some ingredients, and placed on the prepared plate.

“Your Majesty, this is a poached egg made by This Small Official, you try it.”

Li An handed the most complete poached egg to Li Longji, and handed the remaining 2 to Li Linfu and Li Shizhi, and then started again, frying 3 more. There are more ministers here, at least more Do something just enough for them to taste.

Smelling the fragrance of poached eggs, the expressions of Li Longji and several prime ministers were intoxicated. When people are hungry, the craving for food is the greatest. Moreover, the poached eggs made by Li An are so colorful and fragrant. drooling is impossible.

“Well, the taste of this poached egg is really good, Minister Li must teach the master chef in the palace.”

Li Longji narrowed his eyes, intoxicated and demanded that several prime ministers also ate with keen interest pleasure. From time to time, he pouted and carefully tasted the taste.

“Your Majesty rest assured that poached eggs are extremely simple, and the master chef can learn it once.”

Li An said to start to prepare 2nd side dishes, fried eggs with cucumber, this is a very delicious side dish, Li An loved it very much in the past life, and the skill of frying this dish is still very good, even when coming to Great Tang Did not forget this technology.

The eggs are all the freshest grass eggs. There is no pollution of feed and medicine. The cucumbers are all freshly picked Little Huang melons in the greenhouse. In addition, oil salt and green onion ginger are also prepared.

Heat the iron pan and pour the oil. After the oil is smoked, pour the onion ginger and fry it to let the aroma of the onion ginger diffuse out. Then stir in the egg and the liquid of the egg solidifies. old.

After cleaning the wok, pour a little more oil, pour the onion after heating, then pour the cucumber slices and fry for a while, then quickly pour in the eggs and sprinkle some salt out of the pan.

The iron pan prepared by Li An is relatively large. For this reason, there are more than a dozen eggs in this pan, and there are nearly ten cucumbers. It is a big pot of rice, but Li An is doing very well, and the aroma of the food is filled in 100 steps. within.

Li An scrambles cucumbers in a large pot of eggs, evenly dividing them into several plates, and handing them to Li Longji and the prime ministers to let them continue to taste.

“Eggs fried with cucumber, it tastes good.”

Li Longji took a bite, praised Li An with admiration, and closed his eyes, savoring the food in his mouth.

“Haha! The cooking skills of Minister Li are wonderful. It’s a pity not to be a master chef.”

Li Linfu laughed very kindly, looked towards Li An jokingly, and caused a burst of laughter from the ministers and Li Longji.

Obviously, after tasting the 2 dishes that Li An cooks himself, Li Longji and several prime ministers have already recognized Li An’s cooking skills, and naturally, will equate Li An’s cooking skills with the royal chef.

In later generations, a man will cook, that is a standard warm man, will be recognized by the whole society, and can make many girls worship and adore.

But in the era of Great Tang, being able to cook is not an advantage, and it will even be despised. Mencius ’s “Gentleman far from the kitchen” makes many aspiring men think that they should not cook, it is the performance of a gentleman, Just like some students in later generations who think that truancy and not doing homework are courageous and sturdy performances, they are also ridiculous.

Li An knows that Li Linfu is making fun of herself, but it seems not at all malicious. After all, Li Longji and several prime ministers are here?

After a slight smile, Li An continued to make several delicious meat dishes for Li Longji and several ministers, and finally burned a bean sprouts green vegetable soup.

In short, Li An ’s demonstration became a real cooking, filling the stomachs of Li Longji and several prime ministers.

Li Longji ate very comfortably, as did several prime ministers. After eating and drinking, they began to sigh the great role of the solar stove, and felt that Li An ’s invention of the solar stove was a good thing for the country and the people. Very Suitable for popularization.

“Minister Li, the inside of the solar cooker is smooth and reflective, the manufacturing cost must be very high!”

Li Linfu asked with concern.

“Not high, not high at all. Since the black gunpowder was used to mine iron ore, the price of iron has dropped a lot, and the main body of the solar stove is iron. In addition, This Lowly Official invented a hand polisher The efficiency and effect of polishing is far better than that of manual polishing. A solar stove as large as this can be polished by one person in one hour. “

Li An answered truthfully.

Regarding the polishing and polishing of metals, most of the ancient times used stones to manually polish, which is slow and inefficient. The hand polisher invented by Li An can polish the metal faster and better, so that the metal can be reflected like a mirror sunlight.

The principle of the hand polisher is also very simple, and the manufacture is simple and easy, which is of great help to the manufacture of solar cookers.

After personally experiencing the great effect of the solar cooker, several prime ministers left the Zichen Hall with sighs and returned to their respective office areas.

Li Longji stayed and watched the solar cooker carefully and asked about some specific principles and difficulties encountered in promotion.

For the promotion of solar cookers, the biggest problem is only the cost problem, and other problems are easy to solve, and whether the cost is too high, making the old 100 people unwilling to buy, depends on different regions.

For example, in remote mountain villages, dead wood and wild grass are everywhere. The 100 old people do not lack firewood for cooking and do not need to spend money. In this case, as long as they are not too wealthy, It shouldn’t be choosing to buy a solar stove.

In an international metropolis like Chang’an City, with a population of 1,000,000, the firewood needed for cooking and water must be purchased at a firewood store, and the price of firewood is relatively high, so as long as you buy a solar stove Can save a considerable amount of firewood expenditure, then the 100 old people are definitely willing to buy.

Especially business units such as restaurants and hostels that have a large demand for firewood need solar stoves the most, and these units are relatively wealthy and can fully afford the initial investment costs.

The ordinary poor 100 people will calculate whether it is cost-effective to buy a solar stove. For example, after purchasing a solar stove, how much firewood can be saved in one year. If one year of saving firewood is enough to buy a solar stove, it is poor. The 100 surname must be willing to buy.

That is to say, in all cities where there is a lack of firewood, as well as some areas lacking vegetation, it is very suitable for promoting solar stoves. Of course, some areas with particularly cloudy days are not suitable.

In addition, the solar cooker can be used for military purposes in addition to civilian use. Many soldiers and horses of the Great Tang are stationed in the Desert. They have a great demand for fuel, and they must rely on rear support.

forage! forage! Simply put, food and hay used as fuel, these two distinct things, are the most important logistical resources of an army. Without food and grass, a strong army will collapse.

Once the solar cooker is in place, the demand for fodder for an army is greatly reduced, so that the pressure on logistics is reduced accordingly.


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