Couples don't have to have a common topic in the same field.

When Li Qinzai talked about physics, Cui Jie couldn't understand it at all, but if Cui Jie talked to Li Qinzai about embroidery work, would he understand?

Each has its own achievements, each has its own safety, husband and wife are not business partners, there is no need to maintain common ground on the topic of work, as long as the other party is exhausted, it is enough to pat the dust off his body for him.

The meal is eaten slowly, the candlestick stands in the middle of the table, and the husband and wife laugh and laugh, which has a bit of a romantic candlelight dinner.

The atmosphere is all baked here, and of course we have to do something we like each other after eating, in the kitchen, in the wing, on the bed, on the futon, by the well......

Well? It seems to have slipped into some strange place......

It's a pity that Li Qinzai didn't do anything after eating.

Cui Jie's aunt is still in love, and Li Qinzai can't do anything about running a red light.

Fortunately, Cui Jie still has dexterous hands and feet, and seductive red lips, pink curtains and red tents, beautiful spring light, and a bone-eroding ecstasy, so there is no need to irrigate it in detail......

At the moment before he was about to tremble, Li Qinzai suddenly understood why men also like mermaids.

…………

The next morning, Li Qinzai woke up and sorted out the drawings, and then ordered Qu to go to Chang'an City quickly, invite a few skilled blacksmiths to come over, and by the way, allocate money from the Guogong Mansion to buy 10,000 catties of pig iron.

When Liu Asi heard about such a large amount of purchases, his expression suddenly tightened, he knew that Wu Shaolang must have made a big move, so he didn't dare to slack off, and personally rode his horse to Chang'an City.

In addition to completing the task of the fifth young man to the letter, Liu Asi must also report truthfully to his husband.

Wu Shaolang wants to create new gadgets, and the entire Guogong Mansion attaches great importance to it, and Li Tao has already instructed that he must know about it as soon as possible.

In the afternoon, more than a dozen blacksmiths took the Li family's carriage and came to Ganjingzhuang quickly.

But Liu Asi hasn't come back yet, and the task of purchasing 10,000 catties of pig iron is too huge to be completed in one day.

Interestingly, after Liu Asi truthfully reported to Li Tao, Li Zhi of Taiji Palace also knew that Li Qinzai was going to make new things, so he not only personally ordered the transfer of blacksmiths from the Ordnance Supervisor, but also asked the inner government to immediately send 10,000 catties of pig iron to Ganjingzhuang overnight.

Most of the blacksmiths in the ordnance prison were from government soldiers, and they had the temperament of a soldier, and they stood in front of Li Qinzai, and asked Li Qinzai to give an order with a face of awe.

Li Qinzai scratched his head, the battle was a bit big, just to build a hydraulic press, there was no need to be so grand, as if the building was about to collapse, and he was the only savior.

Thinking that his grandfather and Li Zhi both attached so much importance to him to create new things, Li Qinzai was still a little moved in his heart.

It's a really nice feeling to be valued and needed.

Unfolding the drawings in his hand, Li Qinzai pointed to the drawings and explained them one by one.

The blacksmiths didn't know anything about hydraulic presses, but they knew how to strike iron.

It was enough to know what kind of object Li Qinzai needed to create, but as for what this object was used for, the blacksmiths did not know, and they did not dare to know.

A complete hydraulic press requires a high-pressure water pump and filling cylinder, as well as a large iron cylinder for storing water, but in this backward era when the industry is almost blank, the high-pressure water pump and filling cylinder are a bit difficult.

So Li Qinzai decided to build a primitive and rudimentary version of the hydraulic press, only keeping the key parts such as the large iron cylinder, iron ingots, anvils, pistons, etc., and the high-pressure water pump and liquid filling cylinder could only be painfully removed, and an iron canal was used instead, which served as a drain, and a water injection port was required above the iron cylinder.

The gravity generated by the weight of the water is used to increase the kinetic energy of the piston and the ingot, and then two sets of pulleys, after the iron ingot falls, the iron ingot is lifted by the pulley block, and then knocked down again. In this way, the effect of hydraulic forging can be achieved.

After Li Qinzai's detailed explanation, the blacksmiths finally understood what kind of parts Li Qinzai needed, so they geared up one by one, saying that they would definitely build what he needed as soon as possible.

The pig iron was transported to Ganjingzhuang that night, and Li Zhi obviously attached great importance to it, and actually sent a team of Yulin guards to escort it.

Early the next morning, Li Qinzai came to the reservoir, which was almost finished, and ordered a water injection outlet to be connected to the bottom of the reservoir, and then the water of the Wei River was introduced into the reservoir with a water truck.

On the other side, blacksmiths have set up a row of improvised sheds under the reservoir, and the furnaces have been built to make pig iron into steel.

More than ten blacksmiths were in full swing, and the outside of the shed was already full of people, and the villagers didn't even do their work, curiously gathered around the blacksmiths, whispering about what new things Wu Shaolang was going to build this time.

In front of the crowd, the students of the academy stood in front of the blacksmith as a matter of course, observing in the open and bright, and asking Li Qinzai questions from time to time.

The simple version of the large iron cylinder has begun to take shape, and the huge iron cylinder occupies the space of the shed, and the students look at this new thing they have never seen before, and their expressions are becoming more and more impatient, eager to see its effect after it is fully formed.

Li Qinzai was also quietly watching the blacksmiths at work, and said lightly to the students: "Do you remember what I said? Arithmetic is just a tool, it is ultimately at the service of physics. ”

The students nodded their heads.

Li Qinzai said: "Today, I will show you what 'physics' is all about, and why I say that it can change the world. ”

The students nodded again, and in the crowd, the eyes of the female student bully Princess Xuancheng lit up, her expression was excited and suppressed, and her restless little hands kept rubbing the corners of her clothes, obviously very excited in her heart.

Li Qinzai opened a window for her life, and today, she wants to stand on tiptoe and see what kind of world is outside the window.

She's about to see.

After beating again and again, the impurities in the pig iron are separated, and the iron gradually takes shape.

Two hours later, a large iron ingot, made in strict accordance with the dimensions set by Li Qinzai, was finalized under the hammers of the blacksmiths.

Next, pistons and drainage channels are being built, and under the reservoir, the farmers are installing pulley sets, and the atmosphere is very comfortable.

The students also stepped forward to help, and the efficiency was fast. By the afternoon, all the parts needed had been built.

Li Qinzai instructed the farmers to work together to install the large iron cylinder under the reservoir, and use a pulley block to install the large iron ingot under the large iron cylinder, the iron ingot and the iron cylinder are connected by pistons, and the inner wall of the iron cylinder is lubricated with grease.

Soon, a primitive and rudimentary version of the hydraulic press finally took shape.

Li Qinzai watched with satisfaction as the hydraulic press stood below the reservoir, and finally ordered someone to install the water injection and drainage canal.

With Li Qinzai's order, the water from the water injection port flowed continuously from the bottom of the reservoir to the large iron tank.

7017k