The first ice cold drink originated in China, where the emperors and nobles had their slaves take ice in the winter, store it in the cellar, and enjoy it in the summer. Around the end of the Tang Dynasty, people mined a large amount of saltpeter in the production of gunpowder, and found that saltpeter would absorb a large amount of heat when dissolved in water, which could cool the water to the point of freezing. Only then did it be discovered that saltpeter could make ice.

Prior to this, saltpeter was only used as a medicinal herb and for Taoist priests in alchemy. Although Cheng Biting Jin does not refine pills and does not cultivate immortals, there are still some saltpeters as a medicinal material in the house, and after a short time, Cheng Chumo came with a small bag of saltpeter and a large jar of grape wine.

"Ugly cow, go find two copper basins, one large and one small, especially the small copper basin must be filled with clean water."

Cheng Chumo was also anxious to see how Wang Xingxin turned into ice in this warm spring, so he hurriedly went to get two copper basins, one large and one small.

Wang Xingxin first put the small copper basin filled with clean water into the large copper basin that also filled with water, opened the bag and saw that it was indeed saltpeter and relatively pure. So he pretended to be forced: "Ugly cow, don't blink, the moment to witness a miracle is coming!" ”

Pour saltpeter into a large copper basin, and after a while, due to a chemical reaction, saltpeter quickly absorbs the heat in the water, and the basin slowly freezes, and the clean water in the small copper basin also begins to freeze.

Cheng Chu was stunned to see this magical change, and then asked in surprise: "Brother Mingshen, didn't you become a monk before?" How could it be the alchemy technique of the Taoist priest? You have to become an immortal! It's amazing! ”

Wang Xingxin couldn't help but scold in his heart when he heard Cheng Chumo say that he had cultivated into an immortal: Your family has only become an immortal, it's best for your father to hurry up and rank in the immortal class, don't be ashamed! Not only do you not let the beautiful woman warm the bed for the master, but also confiscate the master's property, it's best to hurry up and rank in the immortal class!

"Ugly cow, this is not very immortal! It's chemistry, do you know chemistry? Forget it, you know a hammer! As long as you remember that this saltpeter can be put in water to make ice, but the ice used for eating still has to be put in a small pot like this, and the saltpeter is poisonous after dissolving in the water!"

"Brother Mingshen, write down the ugly cow! Let's sell ice in the summer! Guaranteed to make money too! ”

"Now your kid is awake, let's call Brother Huaidao in the summer, and sell ice in this Chang'an City! It's just that don't let your father know about this, or we won't be able to make money if we don't confiscate it, think about our Qinglou business! What can you do if you don't have the money? ”

"Well, don't say anything about killing me!"

The two muttered for a while and then knocked down the ice in the small copper basin and put it in the wine jar, and after a while, a dense layer of water beads formed outside the porcelain jar, and Wang Xingxin picked up the wine jar and poured a big mouthful into his stomach regardless of the cold.

Wang Xingxin, who was shivering by the ice, just put down the wine jar, and Cheng Chumo took it and poured it. In this way, you drank the chilled grape wine while shivering, and the brothers couldn't drink it after a while.

"Ugly cow, do you think your stomach is cold"?

"I'm miserable to you now, this is not a hot summer, my little brother will feel like falling into an ice hole."

"Ugly cow, brother is also a drop! Why don't we get some hot water and drink it warmly! ”

After the two drank hot water, their bodies warmed up a little, and the wine just happened to come up, and when they were about to fall asleep, the two looked at each other and suddenly found that the chrysanthemum was a little tight, and their stomachs were still rumbling. Fly like you will run to the latrine.

It turns out that drinking hot water after drinking cold water will make you have stomach trouble, especially after drinking cold wine and then drinking hot water, it is even worse, and after a while, the sad brothers ran to the toilet three times! This night was very unpeaceful, and the brothers who didn't have the good of Longyang were all chrysanthemums!

The next morning, the two brothers who clamped their buttocks got up with sleepy eyes, finished washing, and came to the front hall, and saw Cheng Yanjin and his wife sitting upright, waiting for these two boys to say goodbye.

After giving the gift, Cheng bit the gold and said, "Why did your two brothers make such a fuss last night?" ”

"Uncle Cheng on the way back, Brother Ugly Niu and I suddenly had a stomach problem together."

"Humph! I don't know what to eat secretly, I deserve it! ”

After Cheng Yanjin took the two brothers to join Qin Qiong's father and son, he waited for a while to see that Li Ji and Niu Jinda also came. Wang Xingxin asked Qin Qiong a little strangely: "Uncle Qin, why is this?" The boy just went back to the village, why did the uncles come to see him off? It's not an execution ground! ”

"Send you? You're not qualified yet! These uncles of yours are all going to visit your uncle, after all, they are all brothers, I haven't seen each other for many years, your uncle was the oldest at the time of the marriage, he is the eldest brother, since I know where he is now, I must be going to visit and reminisce! ”

"Alas! It turned out to be to visit the uncle! I don't think I even brought any gifts! ”

"You kid! The gift has long been pulled by people to go first! Hurry up and get in the carriage and go! You kid must learn to ride a horse as soon as possible, the old man has a good horse, you go back to the village and let the ugly cow teach you! Your Uncle Cheng will arrange for the ugly cow to lead troops to guard your mansion, this is also what Your Majesty meant, you have to understand!"

"Boy understands!"

After Wang Xingxin got into the carriage, Cheng Chumo also rarely did not ride a horse, and after climbing into Wang Xingxin's carriage with his buttocks, he covered his face in the eyes of everyone who were a little surprised!

The famous generals of the Tang Dynasty were followed by some guard knights, which were very powerful and imposing! Cheng Chumo looked at the generals who traveled far away with some envy. He looked at the slow carriage helplessly and complained to Wang Xingxin: "Brother Mingshen, look at your good idea yesterday!" Alas! Little brother's ass still hurts now! I can only sit in this slow carriage. ”

"How bad is the carriage! It's slow, but you can take a look at the scenery of our Tang Chang'an! Ugly cow, you see, that little lady is graceful, you see that the waist twisted like the wind swinging willows! Let the groom hurry up, you and my brother will have a good look! ”

When the groom drove the carriage past the little lady, Wang Xingxin was startled when he looked back, this gap is too big! It's really 100% back, 0.1 on the front!

provoked Cheng Chumo to constantly laugh at Wang Xingxin's vision, and the two brothers sat in the carriage in a fight, facing the little ladies in Chang'an City, it should be said that it was a beautiful scenery, and some comments came out of the carriage from time to time.

It also provoked several little ladies to look at the two angrily and scold the disciples! There was also that little lady who looked back and smiled, and the two of them were so electric that they trembled!

This Tang folk style is really open, which makes Wang Xingxin overwhelmed.

The beautiful scenery is always fleeting, and after a short time the carriage left Chang'an City, those beautiful scenery lines are gone, and they are replaced by some people who return with their hands to resist and purchase. Those people avoided when they saw a carriage coming, which was different from Cheng Chumo's habitual habits, and Wang Xingxin's heart was filled with some indescribable emotions.

This is status, this is the difference between people in feudal society, this is Datang! Even in this four years of Zhenguan, where the people are open and there is a hidden prosperous atmosphere, this difference between dignity and inferiority can be seen everywhere.

This reminded Wang Xingxin of the scene of the police car he saw before he crossed the road, and the vehicles on the road stopped on both sides waiting for the huge convoy to pass first.

"It seems that it's the same everywhere!"

"Brother Mingshen, everything is the same everywhere"

"Brother just sighed a little, it's okay."

Let's speed up, or we'll be scolded again in the village!

The coachman took the whip and drew the horse that pulled the cart, and suddenly he became quick, and the two men were not lightly torn upside down.

When the two brothers arrived at Yuanlou Village, they heard bursts of laughter coming from the small courtyard of Liu Laoer.

The two of them went in, and Heiwa glared angrily when she saw that Cheng Chumo: "You person, what are you doing in Ecun!" ”

"Heiwa, don't be rude! Your ugly brother is our good brother, not what you think! I'll tell you! Come and apologize! ”

Heiwa has always listened to his new brother's words, and after hurriedly apologized to Cheng Chu, he grabbed Wang Xingxin and said: "New brother, Heiwa thinks that you left your brother to be happy in Chang'an City!" Well, it means that the new brother is not that person! In the past few days, the black baby's mouth has faded out of the bird! You've got to make something delicious for Heiwa! ”

Wang Xingxin smiled and scolded and promised Heiwa, and after making out with Da Niu and Brother Gongzi, he walked into Liu Laoer's yard.

"Uncle! The boy is back! You've had a great day! Why do you still live in this courtyard, next to the newly built high-gate compound, you don't live in this small courtyard, why are you! ”

"You kid, if you don't move in first, how can there be a reason for me to live first!"

"Uncle, what are you talking about! You are not the master, who is the master! ”

When the generals saw that Wang Xingxin's words were really full of filial piety! persuaded Liu Lao Er not to touch the child's good intentions, and today while everyone was moving in quickly, Cheng Yanjin also asked Wang Xingxin to make more food to drink, and by the way, he brought it to his Viscount Mansion to congratulate him!