Tang's dining table

The place Chang'an is basically no longer suitable for human survival as soon as it enters the fifth month of the lunar calendar.

Because there is no rain, the sky is clear, the sun is bright, and the ground is hot.

Therefore, the gunpowder workshop in Qujiang exploded again. This time it did not cause much damage. Only one person's eye was blinded by the wood chips blown away by the gunpowder explosion.

Then, Liu Rengui learned a lesson that gunpowder should not be exposed to the hot sun.

Liu Rengui has summarized a lot of such experiences, and every one of them is stained with blood and tears.

A little more than a month has passed since the Xianyang Bridge explosion, but Liu Rengui's originally gray hair has completely turned white.

Under the urging of Li Zhi, Li Ji and others, the formula of gunpowder has been basically finalized. The next step is to purify the saltpeter as much as possible.

Now that the formula has been finalized, the next step is to conduct a finalization test and a large-scale observation test.

The location was chosen in Qujiang.

Officials of the fourth rank and above in Beijing were invited. Yun Chu and Wen Wen also wanted to take a look, but unfortunately, their ranks were not high enough.

After Wen Wen went home and begged his ancestor at home, he got his promise to take him to the experimental site.

Yun Chu asked Li Shen, but the result was that he didn't go to such a highly confidential gathering at all, and he didn't even think about it.

Then, Yunchu set his sights on His Highness Li Hong, the Acting King, who was fiddled with the waterwheel at the small waterscape with his sister on his back on a hot day.

That's right, just six days ago, the emperor named his fifth son Li Hong as acting king, a title equivalent to first-class treatment.

Looking at the sweaty acting king Li Hong, Yunchu felt that he must really, really want to go to the Qujiang Military Academy to watch a magnificent gunpowder explosion at this time.

Li Hong didn't want to go.

He felt it was too hot. In Jinchangfang, he could wear shorts, a small vest, a lotus leaf hat on his head, and run around barefoot. After going to Qujiang, he had to wear several layers of clothes and give gifts to countless people. , bow to him, say hello, and maybe meet someone who has troubles to test his knowledge.

Therefore, he would rather carry a girl weighing more than 20 kilograms and hang out with the pandas in Jinchangfang for a day, rather than go to the school military field and be exposed to the sun.

The most important thing is that his father and mother will go to the school military field. What if they are captured? This will affect his pleasant vacation time in Jinchangfang.

In the end, he failed to defeat Yun Chu, especially when he was threatened by Yun Chu to lift his legs and throw him into the water lily pond. He cried happily and agreed to Yun Chu's request and took him to the Qujiang Military Field. Watch the explosion.

Traveling for King Dai is very troublesome, at least much more troublesome than King Ji Li Shen's. There are twelve palace guards alone. This is still in Chang'an. If he leaves Chang'an City, his entourage will not be less than three hundred. .

When others become kings, they will be rewarded with royal residences, and those who do not have them will speed up the construction. The acting king Li Hong does not have a royal residence. It is said that Wu Mei said something, saying that Li Hong was young and could not live without her mother, so the royal residence It won’t be too late to discuss this in the future when Li Hong reaches ten years old.

Yun Chu doesn't think that's the case. The greater possibility is that Wu Mei finds it troublesome. There is still a huge East Palace empty in the east of Chang'an. When the time comes, wouldn't it be more convenient for Li Hong to live in it directly? Why do you want a shabby royal residence? .

Li Zhi probably thought so too, so he gave Li Hong the Manna Hall in the Taiji Palace complex to live in.

There is no royal residence, but there are all the officials attached to the entourage and ceremonial guard. The king's master is Shangguan Yi, who is with Li Yifu, and his companion is Yun Chu. When Li Hong opens a palace in the future, there will be more officials attached to him. give him.

Daizhou controls the Central Plains in the south and the Moyuan in the north. Yanmen Pass within the fiefdom is listed as the first of the nine border gates. It cannot be said to be very wealthy, but it is true that there are many soldiers and horses there.

This was also the fiefdom Wu Mei carefully selected for her eldest son. She had to admit that Wu Mei was heartbroken for her eldest son.

Sitting in the heavy carriage, Li Hong kept hitting Yun Chu's arm with his head and shouted over and over again, it's too hot, it's too hot.

Seeing that this little person was really overheated, Yun Chu said: "When we get to the military field, we will ask Liu Rengui for some saltpeter. We will use the saltpeter to make some smoothies for you to eat."

"Liar, my father also said that most of the ice in the ice cellar has melted this year, and it has become a luxury to have an iceberg in the palace to enjoy the cool weather.

He also said that if it were not for waiting for Liu Rengui to finalize the shape of the gunpowder, he and his mother would have gone to Jiucheng Palace to escape the summer heat.

Can you come up with something that even my father lacks? "

"Yes, as long as you don't talk to your father, mother said, I will help you get ice to relieve the heat."

"Why can't you tell your father and mother?"

"Because, once you tell them, I'll be roped into making ice for them, and I hate doing that."

"I hate going to the Qujiang Military Field. Why do you have to force me to go? Master Shangguan said, don't do to others what you don't want others to do to you."

"Because you can't beat me."

Yunchu realized that Li Hong was getting harder and harder to deceive, so he simply ended the conversation between the two with violence.

After arriving at the school military field, the followers of the acting king were not allowed to enter. Therefore, only the acting king Li Hong, who was accompanied by his companion Yunchu, entered the school military field in a daze.

After Yunchu entered the school military field, Li Hong handed Li Hong directly to his master Shangguan Yi. Yunchu found a windy and cool place to wait to watch the gunpowder test arranged by Liu Rengui.

For the sake of safety, the explosion point was arranged three hundred steps away. It was a specially built half of the city wall. The thickness and height of the city wall were similar to those of Chang'an City. Even though they were far apart, you could still feel that the half of the city wall was the workmanship of the craftsmen. Carefully crafted.

It is very likely that it was not built by Liu Rengui, but that the emperor ordered it to be built, or that it was a section of the city wall built under the supervision of Li Ji himself.

The purpose is to test the power of gunpowder.

Yun Chu felt that Liu Rengui's gunpowder might not be able to blow up such a city wall. If he wanted to blow up such a city wall, he would need more TNT. Black gunpowder would not have much destructive power against such a city wall.

When the sun was rising, Yunchu still felt like he was on fire, even if he stayed in the shade.

Just as he was about to take off his obstructive coat, Li Hong ran over with a teapot in his arms. Yunchu took the teapot and was surprised when his hand touched the teapot because the teapot was cold.

After opening the lid of the teapot and looking at it, I discovered that it contained not only sour plum soup, but also crushed ice clinking in the sour plum soup.

"Where did the ice come from?"

"Liu Rengui gave it to me. According to him, saltpeter can be used to make ice. They make this ice from discarded saltpeter."

Looking at the ice cubes in the teapot and listening to Li Hong's words, Yunchu felt that there were many more copper coins flying away with wings in front of his eyes.

Did the natives of the Tang Dynasty already know how to use saltpeter to make ice?

Li Hong said disdainfully: "Just now you said that making ice with saltpeter is a secret of your family.

Master Shangguan said that the art of making ice from saltpeter had been discovered by the alchemists in the pre-Sui Dynasty. He also said that water fell into the saltpeter and then froze, so the alchemists designated saltpeter as a thing of the Great Cold.

Mr. Shangguan also said that even without saltpeter, people during the Han Dynasty could already make ice in midsummer.

The book "Huainanzi Bishu" says that you put some water in an urn and start heating it. When it is almost boiling and the water in the urn becomes less and less, it will be filled with water vapor. After quickly removing the fire, seal the mouth of the urn. The sealing material is mainly thick cloth.

After sealing the mouth, it was sunk into a deep well. Three days later, the urn was lifted up and ice was produced.

It’s not unusual to make ice in the middle of summer, you big liar. "

Yun Chu was dumbfounded by Li Hong's lesson and was speechless.

Although Yunchu deceived Li Hong, Li Hong still generously brought him a large pot of iced sour plum soup to relieve the heat, so as to prevent the big liar from being roasted into scum by the sun.

The sour plum soup with added ice and icing sugar tastes very good. One sip will make your body feel soothed. Unfortunately, the more Yunchu drinks, the more sour it becomes.

Less than half of the drink, the teapot in his hand was taken away by the tenderness that was about to be burned. He drank the sour plum soup in one breath, opened his mind, fanned the wind hard and said: "How can you have such a thing to drink? My grandpa's I was given a bowl by the side, and it wasn’t my turn to drink at all.”

Yun Chu looked at Wen Wen and said, "Have you ever heard of making ice with saltpeter?"

She looked at Yun Chu tenderly and puzzled and said: "I know, saltpeter is too expensive and there is no way to get large pieces of ice, so it is useless. In other words, rich people who are greedy for cold food will get some. On weekdays, Everyone uses ice storage.”

Yunchu asked again: "Do you know the book "Huainanzi Bishu"?"

Wen Wen said suspiciously: "It should be the book "Huainan Ten Thousand Bishu". It was compiled by the disciples of Liu An, King of Huainan in the Western Han Dynasty. It contains all kinds of wonderful things that only warlocks can use. Why are you suddenly interested in this book? Already?"

Yun Chu felt that his throat was very uncomfortable, and he coughed twice and said, "Do you have this book at home? Can you lend it to me?"

She smiled softly and said, "This is an idle book I read when I was ten years old. I naturally have it at home. If you want it, I'll give it to you."

Yun Chu grabbed Gentle's shoulders with both hands and said, "You'd better read this book again. It's very interesting."

Gentle patted Yun Chu's hand away, pointed at a group of soldiers who were digging a tunnel under the bright sun and said, "Stop talking, Liu Rengui's demonstration has begun."

Yunchu looked around and saw two earth dragons approaching the city wall. As the dust rose, huge shields were buckled on top of the deep pits, which could resist the sharp arrows flying from the top of the city.

After a while, Tulong arrived under the city wall. After a while, a captain holding a red flag waved the flag. A group of people were seen continuously delivering some square package-like things into the tunnel. .

Soon, all the packages were placed, and a group of marmot-like soldiers ran out of the tunnel.

Wen Wenwen said to Yun Chu fearfully: "Otherwise, let's go and watch under the shed made of giant trees. I always feel that this place is not very stable."

Attachment: The next chapter will be released at 2 pm on the 2nd. You can read it first, and I will continue writing. This book is the first release of Qidian. Everyone is welcome to read it on the Qidian app——