Xie Feng himself has some knowledge of physics, although not much, but enough to comprehend the principle of the vacuum flask.

Song Zichen was also called into Xie Feng's office, he poked his head, still a little confused, "Vacuum environment?"

Song Jingwen clicked his tongue, and took out a book from the drawer, "This is for you, chemistry and physics are used together, if you don't understand...Ask my little ancestor or me."

He nodded again, "As for what material to use, well, there are two pairs of glass bottles over there."

This glass bottle is also valuable in their eyes, and it was placed in front of Song Jingwen, except for the pain in the flesh when they paid for it earlier, they didn't think it was too expensive.

Isn't it just two thick glass bottles!

Xie Feng was fiddling with two of the glass bottles, one big and one small. He was really startled when he heard that Song Jingwen was going to use these two glass bottles as a thermos. Song Jingwen seemed like a prodigal.

"There are only two pairs in total, and two more will be used at a time. As long as the success is guaranteed, only two thermos bottles can be made. The cost is too high, who can afford it."

And according to what Song Jingwen said, it has to be plated with silver, which is even more unacceptable, too expensive!

Song Jingwen carried Xie Feng's collar over with one hand, played with Xie Feng's earlobe with two fingers, and thought casually, "It would be great if we could make glass."

Xie Feng turned his head away, still holding the small colored glass bottle in his hand, stroking it around reluctantly, his eyes lit up for a moment and then quickly dimmed, "Is it the thing you said earlier that looked like colored glass?"

Even Song Jingwen didn't know how to make glass, let alone him.

Sometimes Xie Feng suddenly wondered how Song Jingwen knew so much knowledge, but every time he opened his mouth, he didn't know what to say.Looking for a reason for Song Jingwen himself, it must have been taught by the Taoist priest in his dream.

After all, Song Jingwen had been using this excuse all the time, and it didn't arouse anyone's suspicion.

A Taoist once said that Song Jingwen must be extraordinary, no, it has worked!

No one could understand the conversation between the two of them.Song Zichen glanced at the two in bewilderment, shook his head and continued to read the book.

"It should be quite difficult." Xie Feng glanced pointedly at Song Zichen who was working hard, and smiled at Song Jingwen, "If you give him the recipe, can he make it?"

Song Jingwen rubbed Xie Feng's hair. After washing his hair with soap for a long time, it was much softer than before. He thought about it seriously and said, "It's not easy. You and Song Zichen should study the thermos slowly. Don't think too much. You can't become fat if you eat one bite."

"Anyway, there's nothing to do now, so let's try first. A success requires 99 foreshadowings, and those who fly into the sky once are the emperor's favorite."

Xie Feng shook his head, rubbed the corner of his clothes enthusiastically, and smiled on his cheeks, "Then you wait for the good news."

Song Jingwen hugged him back again, and whispered in a very authentic way, "Don't get too busy and forget that you have a husband. Song Zichen spends time in the office every day because he doesn't have a good relationship. I'll arrange more work for him." , he is comfortable. You are different."

Song Zichen read the book with relish, but he didn't know that he had been arranged clearly.

The exploited person grinned foolishly at Xie Feng's sympathetic gaze.

After a period of time, seeing the temperature rise, the sky is warm.

One day, with his disheveled hair and a relaxed smile in his eyes, Xie Feng dragged Song Jingwen to Song Zichen's office.

Song Jingwen was taken aback by a vertical strip on the table, and took a step forward to uncover the cloth scarf that created a sense of mystery.

"This is... a thermos bottle?" Song Jingwen pulled out the cork in disbelief, unexpectedly, these two people actually made it.

The two elder brothers were very proud, Song Zichen pushed Xie Feng and motioned him to speak first.

Xie Feng licked his lips, and then said, "We didn't use glass bottles, we used a mixture of iron and copper, and then plated with a layer of silver, making it in the shape of a bottle with a narrow top and a wide bottom."

Song Zichen took out another thermos from the cabinet and continued, "This is a porcelain bottle, the material is different, and the time to keep warm is also different."

Song Jingwen understood, "You made up this shell?"

The shell made of bamboo is not made by Xie Feng at first glance, because there is a peach blossom dotted with a pen on it.

It could only be done by a very romantic person like Song Zichen. He nodded embarrassingly, and begged Song Jingwen to leave him the ceramic thermos, "I want to keep this, is it okay?"

Song Zichen opened his mouth, and Song Jingwen didn't have any objections. After trying the effect of the thermos, he went straight to production.

Once the function of the thermos bottle is released, it is quite bluffing.After the hot water is installed, the water can be kept warm for up to three or four hours.

It's really an artifact, but the price is really daunting.

Just one bottle costs 35 taels of silver!Enough for the expenses of ordinary people for two or three years!

No matter what other people think, when Song Jingwen has something new here, Cha Jinwu is the first to start. He proudly ordered six thermos bottles from Song Jingwen. If you don’t have a painter, you can skip this step, and I will take care of it.”

Song Jingwen raised his eyebrows, "Give it away?"

Cha Jinwu nodded, not hiding anything, the fan hit his palm crisply, "I'm going back to Beijing soon, so I can't go home empty-handed."

"I said that silver-plated vacuum flasks should be used for everything, and the cheap ones will be on the market in a few days. Don't you think about it?" Song Jingwen was a little sad that he was about to return to Beijing without paying attention, but he turned around quickly. Head to sell the product.

Cha Jinwu habitually looked for Bai Jinrong's figure, and suddenly remembered that he was detained at home and couldn't get out, so he shook his head with a smile.

"If you use the cheap money, those young masters and young ladies must laugh at me for going out for a trip, and I am really down and out. At that time, if I am stupid, I will step on my feet, and then I will make a joke."

Song Jingwen laughed, and fed Xie Feng a piece of coconut candy, "It's because I didn't think carefully, the branch stores in the left and right capitals will soon have the goods, and it won't be too late for you to buy them then."

Xie Feng absently wrapped the sugar into his mouth, and he didn't even react when his lips touched Song Jingwen's fingertips.

Not to mention Cha Jinwu, even he couldn't calm down, blinking at Bai Jinrong but not looking at him.

Staying in Ningchang Town is indeed not a long-term solution, Che Jinwu looked at Xie Feng calmly, and said to Song Jingwen, "Do you want to go back to Beijing with me?"

Xie Feng's ears moved, he caught the words keenly, and asked longingly but restrainedly, "What are you going to do in Kyoto?"

"Go to live in Kyoto. Kyoto is much more prosperous than Ningchang Town. Are you interested?" Che Jinwu began to fool around, as long as Xie Feng nodded, wouldn't he be afraid of Song Jingwen saying no?

Xie Feng didn't make a sound, he played with the tip of his tongue against his cheeks, sucking, licking and biting, he was so happy, his fingers secretly hooked up with Song Jingwen.

Song Jingwen pressed his palm hard, and said with a smile, "I will always go, but I haven't finished the matter in my hand, so I don't feel at ease when I go."

He smacked his lips, pretending to be helpless and compromised, "Hey, I must go some other day, and I will notify you in advance when I go. If you don't let you show your landlord's kindness, you will be sorry for our friendship."

Song Jingwen does have plans to go to Beijing, and the business there can't really be handed over to others, but it's not the time yet.

Che Jinwu smiled and said yes, three days later the Che Mansion opened its doors and bid farewell to Young Master Che with great fanfare.

A cheap version of thermos is also on the market. Song Jingwen does not brag, but actually puts the container made of this double-layer clay pot in front of people. money, but it can also keep the water warm for an hour without cooling down."

"You get what you pay for." Song Jingwen gave a wink, and Xie Feng knowingly lifted the bead curtain and went to the back. He clapped his hands, "For bamboo weaving, you can ask the painter in the shop to paint it. It only costs five cents."

Xie Feng took out a small net bag made of thick twine from the store and put the thermos in it, lifted it up and shook it, and said cooperatively, "However, if you buy a pottery thermos now, you will get a net bag as a gift, and you can take it with you. There are only [-] places. , Hurry up if you want to buy.”

"One tael of silver is only guaranteed for one hour?" Everyone hesitated, one tael of silver is not too much, but now that the weather is warmer, it seems that there is no need to waste this money.

The tea is boiled and left for half an hour just to be eaten.

"It's not expensive, come and have fun, can you wear cloth clothes for this thermos?"

Song Jingwen rolled his eyes, and immediately responded, "Of course, it's also five renminbi. The thermos with clothes on is better at keeping warm, and the first fifty are free!"

Someone had a bright mind and yelled to squeeze in from behind, "I'll have one, I bought it for autumn and winter and it will always be needed."

One sentence woke up many people, and the crowd at the door of the store started to flow, scrambling to squeeze in, "Yes, yes, yes, it's not a loss if you buy it now."

Song Jingwen took Xie Feng and retreated from the crowd, and handed over the corresponding business to the shopkeeper and his assistants.

At night, Song Jingwen was facing the ledger under the lamp, while Xie Feng was lying beside him, frowning and muttering.

Song Jingwen pinched his cheek, tugged, and said amusedly, "What are you mumbling about? Go to sleep when you're sleepy."

Xie Feng shook off his hand, counted his fingers self-consciously, and finally said in dissatisfaction, "The vacuum flask is very useful, why can't it be sold?"

Song Jingwen thought it was something, let go of his problems and stretched his waist, and said indifferently, "It's not short of this sum of money, and business will be fine in autumn and winter."

Xie Feng felt aggrieved, deeply felt that no one wanted what he had worked so hard to make, and almost fell into self-doubt.

Song Jingwen teased him, "When the puffer fish gets angry, it explodes, and when it gets angry, it kills itself."

Xie Feng stared at him angrily, "I'm not angry!"

"Okay, okay, not angry." Song Jingwen coaxed him, and took his hands into his arms, as cold as ice, "Are you hungry, I'll make you a midnight snack."

Xie Feng cheered up, jumped out of Song Jingwen's arms, looked at him expectantly, "I'll go too, to see you do it."

Song Jingwen was very good at cooking, and he firmly grasped Xie Feng's stomach, making him choked up.Every time Xie Feng wanted to learn, he would be useless.

What was wasted was food, and Xie Feng felt that he couldn't get used to it.

Song Jingwen bit the tip of his nose, Xie Feng couldn't help blinking, "Okay, make something that can be soaked in boiling water."

Xie Feng stared curiously at Song Jingwen's opening and closing mouth, as if his mouth could be conjured.

Song Jingwen grabbed Xie Feng's butt, carried him downstairs amidst his exclamations, and joked, "Make tea oil noodles and sell them together in Shiwu tomorrow. I'm afraid your thermos is still there." Not enough to sell."

Xie Feng was overjoyed, knowing that Song Jingwen had a way to sell more thermos pots, and happily wrapped his arms around the other party's neck.

In the early morning of the next day, Xie Feng hid in Song Jingwen's arms with a blushing face, and burrowed under the blanket in embarrassment.

Fortunately, the servants all went to bed last night, otherwise he would have lost someone to death!Which family's husband would be so close to his husband, people would laugh when they saw their teeth.

The author has something to say: Boss Song’s diary on October 14, 5.1th year of Yuanlong calendar

Tsk tsk tsk, if something goes wrong, there must be a demon!The daughter-in-law is very clingy today, I doubt that he is not awake because of the stickiness, she hugs and kisses every now and then.

Come on, this exercise that Ah Jin doesn't allow is like an addiction, and he can even use his paws.This is not right, recently he had a private conversation with my uncle, and I also went to find my uncle secretly!Damn...he actually rushed the child!

Um?Yes, my wife can have a baby!

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