"Master Horse, I'll leave it to us here, we don't dare to say anything about the war, but this kind of strength work, you can rest assured!"

Now, the people of the entire Tang Dynasty regard the horse as a god, so these craftsmen heard that they were working for the horse master, and they were very excited, and there was no sloppiness in any link, for fear that they would be dissatisfied with the horse master in their minds.

"Okay!"

Zhao Yin, who really didn't know what to say, could only agree, because the rails made by these craftsmen were even more satisfactory than he expected.

How embarrassed is this for him to speak? In the end, I had no choice but to be a shopkeeper!

Time flies, and a month has passed in a blink of an eye, and although Zhao Yin is free, he has not reported to Li Er once.

"I heard that your kid has been busy lately?"

This kid didn't go to visit him, so Li Er could only come over and ask in person, after all, he had invested a lot of silver, and he hadn't gained a little yet!

"No way, what about the steam engine, the train and the rails, which one should not be bothered about? But after all, this suggestion was put forward by the son-in-law, so no matter how hard and tired the son-in-law is, he doesn't dare to complain! ”

Zhao Yin pretended to have a wry smile on his face.

This old slammer came over this time, it must be Xingshi to ask for guilt, and in recent times, the money has indeed been spent, but the results have not been told to him at all, and he is not to blame for coming to himself.

"Although you brought back a lot of gold and silver when you went north, you can't slack off because of this, don't forget, there are still people around who have been spying on our Datang country, this has to be guarded against!"

After hearing Zhao Yin's explanation, Li Er breathed a sigh of relief, he was really afraid that his silver would be wasted.

Although he has now swept away the northern Xinjiang countries, this does not mean that he has no enemies in the Tang Dynasty, so Li Er's heart has been worried about whether he will let his treasury run short again.

Now that they have siege weapons, they need to speed up the march of the army and the transportation of grain and grass, otherwise he would have sent troops to the expedition long ago.

Now that his good son-in-law has given him such exciting news again, how can he not be in a hurry?

What emperor didn't have the determination to rule the world?

And now, the opportunity of the First Emperor of the Ages is in front of him, how can he not be tempted?

"Master Horse, there is a message from the prison and asks you to come over, it seems that there is something wrong with the steam engine!"

At this moment, Xue Rengui walked in and saluted Li Er and Zhao Yin before he opened his mouth to report.

"Okay, got it!"

Zhao Yin nodded slightly and waved at him.

"Father-in-law, did you see that? It's not that my son-in-law doesn't want to report to you, I really can't spare time! ”

After Xue Rengui went out, Zhao Yin had a bitter face and poured bitter water on Li Er helplessly.

"Okay, I know, I won't urge you in the future!"

"Thank you, father-in-law, for your understanding!"

"Since you have something to deal with, I'll go back first!"

……

"What's going on? What happened? ”

In the prison, Zhao Yin found that the steam engine had been assembled, and the appearance was exactly the same as that of the steam engine in later generations, and nothing unusual was found.

"Back to the horse, everything is made according to the things on the drawings, just now we also ignited the experiment, but it has been leaking, and it can't be blocked at all!"

Lin Wu's face was bitter.

I worked hard day and night for so long, but I still failed!

All kinds of holes are constantly steaming, and the strength is surprisingly large, it is not something that ordinary things can plug at all, Rao is a beef tendon with good toughness, and it cannot withstand the power of steam jets.

"I see......

After hearing Lin Wu's words, Zhao Yin suddenly became stunned and continued: "It's not a big deal, this horse knows how to solve it!" ”

In fact, it's no wonder that they didn't have anything like sealing rings and oil seals during the Tang Dynasty, and if you want to completely solve this problem, you have to find a way to study the rubber first.

Rubber is native to South America, counting on its flow to the Tang Dynasty, I don't know how to make the Year of the Monkey!

It's not a big problem to wait for some, and it's not a big problem to exchange some with the system.

But a steam engine can be exchanged for the system, once the experiment is successful, then the number of steam engines will inevitably increase exponentially, and at that time, no matter how much shock value he has, it will not be enough.

"How to fix it?"

Lin Wu hurriedly bowed his hand and asked curiously.

For the words of the horse master, he never doubted that since the horse master can invent such a thing, then he can also solve such a problem, but the power of this steam engine is really great, he is really curious, what kind of thing can be blocked?

"Ben Pony will tell you when he turns around! I've been tired for so long, let's let the big guy go back and rest first! ”

After leaving the next sentence, Zhao Yin turned around and went out.

If the sealing problem cannot be solved, then the steam engine is a waste.

But you can't go abroad to buy rubber, right?

That back and forth, not a year?

This is the first time he has encountered such a tricky problem since he came to Datang, even if he wants to develop it himself, but the problem of materials has trapped him, because Datang has no problem at all!

How can this be?

For several days in a row, Zhao Yin was sullen in the Horse Mansion, and he really couldn't think of any good way to replace the rubber and oil seals.

"Master Horse, I heard that your medical skills are superb, and today I finally saw your true face of Lushan!"

Zhao Yin didn't expect that Princess Changle would actually bring a Taoist priest over, and listening to the meaning of his words, it seemed that she wanted to learn some medical skills with herself.

"Who is this old man?"

He frowned slightly, not knowing what Princess Changle was doing with such an irrelevant person.

"It's not because you're depressed, so this princess asked Sun Daochang to come over and show you, you have to cooperate well, don't let down this princess's hard work!"

Princess Changle gritted her teeth and whispered, in the past few nights, Zhao Yin has been unwilling, and her performance made her extremely dissatisfied.

"The face of the poor Taoist horse is full of heaven, and the earth pavilion is round, and it is the best face.

Sun Simiao said smugly, his eyes full of smiles.

You must know that heart disease also needs heart medicine, and such a condition cannot be solved by manpower.

"Kind of makes sense, the last few days, because something has been bothering me, out of the way!"

Zhao Yin was a little surprised and nodded slowly.

Unexpectedly, the old Taoist priest in front of him still had some insights, and he was much stronger than those imperial doctors in the palace.