Fifteen miles south of Chang'an City, Li An is still busy studying tempered glass technology, according to the memory of the previous life, the manufacturing process of tempered glass is not complicated, and the method of rapid cooling is used to prestress the inside of the glass, so as to greatly enhance its temperature difference and impact performance. Pen, fun, and www.biquge.info

To test this theory, Ang Lee had craftsmen use an artificial method to quickly cool the glass, and then, by striking it with a hard object, determined the performance of the test glass.

"Li Shilang, this medicinal jade is so precious, do you really want to smash it?"

The craftsman suspected that he had misheard, and hurriedly asked.

Li An nodded and said, "If you want to smash, first use a little less strength, and then gradually increase the strength, first use a flat-headed mallet to smash." ”

The craftsman took the order, took a flat-headed wooden mallet, and gently smashed it against the processed medicinal jade without the slightest damage.

"Add a little strength."

Ang Lee continued to order.

"Knock Knock Knock ......"

The craftsman gradually increased his strength and struck the medicinal jade, but he had already used a lot of force, but he still failed to break the medicinal jade glass, and he could not even see a single crack.

"Okay, very good, this medicinal jade can resist the attack of the mallet, it is already very powerful, come, replace it with a hammer."

Ang Lee is still quite satisfied with the improved glass, at least, this performance is much stronger than ordinary glass that has not been treated.

The craftsman picked up the hammer and smashed it at the medicinal jade, but there was no reaction, and after increasing the force, cracks appeared on the surface of the medicinal jade, but it did not shatter.

"Continue to increase your strength until you completely smash the medicine jade."

Ang Lee ordered loudly.

The craftsman received the order and continued to increase his strength, smashing the surface of the medicinal jade miserably, but with a lot of strength, he still failed to completely smash the medicinal jade into pieces.

"Li Shilang, we just blew it with a strong wind, this medicinal jade is so hard, no wonder it is called tempered medicinal jade, it's amazing."

The craftsmen were all dumbfounded, and sighed at the wonder of the creation.

Li An was also very excited, the tempered glass test was successful, and then, he could rest assured that all the windows of the mansion were changed to glass materials, in addition, he also had to build an outdoor sun room that could block the wind, so as to lie in the sun during leisure, in addition, the vegetable greenhouse can also be memorized and transformed into medicinal jade, tearing off the silk of the ceiling and replacing it with tempered medicinal jade.

"These sizes of medicinal jade molds, to do more, made into tempered, the medicinal jade mirror is only made of a square mirror one foot high, and there are two kinds of small mirrors the size of a palm, remember, the medicinal jade mirror cannot be made into tempered."

Ang Lee took out a piece of paper and asked the craftsman to do what he asked.

"Li Shilang, this is too much, I'm afraid it will be difficult to do it well in a short time, there is only one blast furnace that can be used, and the newly recruited apprentices have no technology and can't do it quickly."

At present, there is only one medicinal jade blast furnace that can be used in the processing plant, and the remaining nine are still under construction, so it is naturally difficult to fully meet the demand for Li An, and the craftsmen feel very pressured.

"It's okay, the official didn't urge you, just do it slowly, just don't be lazy."

Ang Lee told the craftsmen not to be nervous, and walked to the room where the steam engine was developed to conduct further research.

After continuous research and improvement, the prototype of the steam engine has come out, after all, the principle of this thing is really too simple, if it were not for the limitation of the strength of the material, it would have been made a long time ago.

Of course, Ang Lee also has to admire the wisdom and resilience of the people of this era, under such backward conditions, there are many things, Ang Lee doesn't dare to have much hope, but they are still made by these clever craftsmen, and they will also think about the problem from another angle according to the principle explained by Ang Lee, and solve the problems encountered, which surprised Ang Lee.

The ancients were still very smart, just like historical miracles such as the Great Wall and the pyramids, how they were made under such backward conditions in ancient times has always been a mystery, and it is even suspected that they were made by aliens.

Similarly, the craftsmen of the Tang Dynasty are also very smart, and they also have unique skills that later generations do not know, so that they can solve many difficult problems, which is very beneficial to Ang Lee to develop many later generations of science.

Many times, Ang Lee just put forward an idea, and these craftsmen can immediately think of strategies to deal with it, but these methods of coping with it are not mastered by Ang Lee, and they are also knowledge that they have not learned in their previous lives, so in the process of development, Ang Lee and these craftsmen are learning from each other, making progress with each other, and both sides have learned a lot of knowledge that was not clear before.

After such a long period of development, these craftsmen gradually figured out the principle of the steam engine, and once successful, it could provide a huge traction force to the iron wheel head, which completely changed the transportation conditions of the Tang Empire and greatly enhanced the international influence of the Tang Dynasty.

According to the current development progress, Li An is confident that the test of the steam engine will be successful within half a year, and the steam locomotive that can be exercised will be successful within two years, so that the transportation situation of Datang will be qualitatively improved, and all the knowledge of steam locomotives is only clear to Li An and more than a dozen craftsmen, and these dozen craftsmen are all people with families, as long as the life is rich, there is no possibility of escaping Datang, as long as these craftsmen are mastered, the future technology of the steam locomotive will not be leaked.

After all, among all the inventions and creations, none of them can compare with the steam locomotive, and the beginning of the industrial revolution in later generations began with the invention of the steam engine.

The time for spring ploughing is coming soon, and the people of the whole territory of Datang are busy with spring ploughing, and government officials at all levels are also busy managing spring ploughing related matters.

Due to the arrival of spring ploughing, most of the people in the major mines returned to their homes to farm, the mining progress of the mines slowed down, and the demand for gunpowder naturally declined.

At the busiest time of spring ploughing, Li An took his family to take a carriage and went to the outside of the city to play under the protection of Duan Xiushi and other Yulin troops.

Going out to play in the spring can also be called a outing, this is a very comfortable thing, it can cultivate people's sentiments, make people feel comfortable, of course, with Yan Ruyu and Cao'er, this feeling is even more comfortable, of course, if Duan Xiushi and a dozen Yulin soldiers can disappear, it will be even better, Li An has never liked light bulbs.

"Husband, the scenery here is so beautiful!"

Yan Ruyu hadn't been out for a long time, and she sighed excitedly as soon as she entered Fan Chuan.

"No matter how beautiful the scenery here is, it is not as beautiful as my wife, come, let my husband enjoy it."

Li An hugged Yan Ruyu crookedly, and stared at Yan Ruyu's face and admired it.

"Husband, don't be indecent all the time, the grass is still in the carriage?"

Yan Ruyu gently pushed Li An away.

"Madam, Cao'er is not an outsider, so what does it matter?"

"Oops, you're so nasty."

"Madam, there is a gazebo on the mountain peak in front, why don't we go up and enjoy the scenery! Only by standing on a high place can you enjoy more of the scenery. ”

Li An lifted the curtain of the car and saw the small pavilion on the mountain peak not far away.

"Husband, this is too high, but since Husband likes it, then let's climb up!"

Yan Ruyu readily agreed, if she went against Li An everywhere, she knew that it would make Li An unhappy, and besides, she also wanted to stand on a high place and experience the taste of seeing the mountains at a glance.

After getting out of the carriage, Li An took Yan Ruyu and climbed to the top of the mountain, Cao'er followed closely behind, Duan Xiushi and the guards, and the soldiers were divided into two roads, one leading the way in front to investigate the situation, and the other road was following behind, but at Li An's request, they were separated by a relatively long distance, about thirty paces apart, and it was difficult to be heard when they spoke softly.

"What's the matter, ma'am, can't walk?"

Seeing that Yan Ruyu was sweating profusely, as if she was about to lose her breath, Li An asked with concern.

"Husband, let's rest for a while! It's so tiring. ”

Yan Ruyu really couldn't walk anymore, so she pulled Li An's arm and didn't leave.

"It's only been a third of the way, and I can't walk, how can this work, if you climb so intermittently, it's dark at the top of the mountain, come and hold you for your husband."

Li An said and hugged Yan Ruyu in his arms, and strode towards the top of the mountain.

"Alang, ma'am, slow down, wait for me."

Cao'er panted and ran up, but how could she, a young lady, keep up with Ang Lee's pace, she couldn't keep up soon, and there was a feeling of abandonment.

"Husband, you slow down, the straw man can't keep up."

Yan Ruyu felt sorry for her marriage and asked Li An to stop.

Li An smiled slightly, and shouted down: "Cao'er, you don't have to hurry, just climb slowly, Ah Lang and Mrs. are waiting for you on it." ”

After speaking, he continued to stride towards the top of the mountain, leaving behind the old tall grass lady with a pouting mouth.

The scenery from the top of the mountain is more beautiful, of course, the scenery from near can not be seen, the beautiful thing is the scenery at the foot of the mountain, standing in the pavilion, looking at it, the mountain is paved with a layer of tender blue, full of the charm of life.

A little farther away, there is a group of farmers who are working, and the dotted farmers add a smart atmosphere to the fields, so that Li An, who is standing on a high place, has a sense of superiority to point out the country, that feeling is really very wonderful, no wonder everyone is greedy for power, and they want to stand on a high place and look down on all beings, that feeling is really very good, very intoxicating.

"Husband, there are so many farmers farming in the distance! They're really hard! ”

Yan Ruyu pointed to the farmer in the distance and said with emotion.

"Yes! They are all honest people, and they are also the cornerstone of the Tang Empire, without these people, there would be no Tang Empire, but they are indeed the most and hardest working group. ”

Ang Li considered the problem from a higher perspective, and Yan Ruyu was a little incomprehensible.

"Husband, the two in front seem to be women, don't you look like them."

Yan Ruyu looked at a field not too far away and pointed to the place she was looking at.

Li An glanced at it, smiled slightly at the corner of his mouth, took out the telescope from his arms, stood behind Yan Ruyu and looked over, and found that there were two men at all, but the hair was not handled well, and they were far away, so Yan Ruyu was wrong.

"Madam, how can they be women, even if they are two men? You read it wrong. ”

Li An hurriedly put away the binoculars and corrected.

"No, it's obviously a woman, do you dare to bet."

Yan Ruyu believed in her own judgment and actually dared to bet.

"What if I lose?"

"What did the husband say?"

Li An smiled slyly and said softly: "If Madam loses, she must agree to any request I make, and she can't go back, if I lose, it's the same, how about it?" ”

"Okay, that's it."

Yan Ruyu was full of confidence, paused, frowned, and said: "Husband, that field is still far from the foot of the mountain, how can we prove that the two of them are men or women?" If you want to run over and see what is going on, I can't run. ”

"You don't have to run over in person, you can just look at it with your glasses."

Li An smiled evilly, took out the binoculars from his arms again, and handed them to Yan Ruyu.

"Husband, what is this, called a telescope?"

Yan Ruyu obviously doesn't know how to use it yet.

"Come, let your husband teach you how to use it."

Li An placed the telescope on Yan Ruyu's right eye and pointed to the cultivated land in the distance.

"How, is it a man, or is it a woman?"

Ang Lee laughed even worse.

"How can you see it so clearly?"

Yan Ruyu was completely shocked, and actually forgot about the bet with Ang Lee.

"Madam, this is a telescope, you can see things far away, how about it, you lost."

Li An said stiffly.

"No, my husband is cheating, just now, my husband must have seen it with this telescope, so I can be sure that the two are men, which is not fair."

Yan Ruyu suddenly felt that she had been fooled and fell for Ang Lee's scheme.

"Madam, there is no trick for your husband! Madame didn't say you weren't allowed to use binoculars! I don't have to use a telescope! ”

Ang Lee laughed and quibbled.

"Okay, let's guess again, the pedestrian on the left side in front of you is male or female."

Yan Ruyu didn't bother to argue with Li An, and directly used the binoculars to see a pedestrian and asked.

Li An smiled, took out another telescope from his arms, glanced at it, and said, "It's a woman, and she is carrying a basket in her hand." ”

"Wow, husband, you have another one in your hand, give it to me too, hum."

Yan Ruyu snorted angrily.

"Madam, the passerby woman has stopped, guess what the basket in her hand contains?"

Ang Lee asked with a smile again.

Yan Ruyu looked at it with a telescope, but she couldn't see clearly at all, she could only see something in the basket, but she couldn't see what it was.

"Husband, the contents of this basket can't be seen clearly with a telescope!"

Yan Ruyu frowned, but when she saw Li An smiling evilly, she suddenly woke up: "Does Husband still have a telescope that can see farther?" (To be continued.) )