"Who are you thinking about?"

After hearing the conversation between the two, Princess Changle looked at Zhao Yin with an angry face, not knowing which girl he was thinking.

"This horse is thinking about the steam engine, because the problem of air leakage can never be solved, and if there is no tough seal, this horse's research will fail!"

Seeing the appearance of Princess Changle, Zhao Yin's head suddenly became bigger, was that what he was thinking?

"Oh? But I don't know what kind of characteristics the pony asks for? Poor and talented, have a certain understanding of some strange things, and maybe can help you a thing or two! ”

After listening to Zhao Yin's words, Sun Simiao immediately became interested.

What steam engines, what air leaks, all he had never heard of.

"Sun Daochang...... Poor Road ...... Love to study the odd and the weird? ”

Zhao Yin looked the old man up and down, and then connected these together in his heart, and immediately thought of a person.

Medicine King, Sun Simiao.

So he no longer concealed it, and told the characteristics of the rubber products he needed.

"That's all?"

Sun Simiao didn't expect that the request of the master of the horse would be so simple.

"Is there a way for the Dao Chief?"

Zhao Yin's eyes immediately lit up, because of this incident in the past few days, he was saddened.

"Eucommia gum may be able to help the horse master solve his troubles!"

Sun Simiao stroked his beard and spoke leisurely.

"What is this?"

Zhao Yin's face was confused, this was definitely the first time he had heard of this thing, even in later generations, he had only heard of Du Zhong.

"When Lao Dao traveled all over the world, he found that the local hunters were collecting the juice of Eucommia ulmoides on the Qinling Mountains, and then boiling it into glue, which was used to make rain gear, with excellent results."

"The degree of toughness, I think, should be suitable for the needs of the colt, the old way is just to give you a suggestion, whether it will succeed or not, but the colt will try to determine for sure."

Sun Simiao smiled indifferently and explained it in detail.

If he were a different person, he would definitely not know about Eucommia ulmoides, but he had been out for many years and was very interested in strange things, so he paid attention to it.

After hearing this "Eucommia gum", Zhao Yin couldn't wait to use the system to start searching, and sure enough, the properties and special effects of this thing can completely replace rubber.

In later generations, Eucommia ulmoides gum is a supplement to natural rubber, and Eucommia ulmoides has also become the world's most widely adapted and promising gum source tree species.

Because of the output, Eucommia ulmoides gum can only be used as a supplement to rubber, but it is far from replacing the position of rubber.

Zhao Yin finally breathed a sigh of relief, and the problem that plagued him was satisfactorily solved.

"Thank you for the uncle!"

Zhao Yin arched his hand at him.

Although he only gave himself a piece of advice, he did himself a great favor.

……

"Master Pony, you're not joking, are you? With Eucommia? ”

After Lin Wu heard Zhao Yin's words, he almost bit his tongue.

He knew that it was a medicinal herb, and the juice was white, so how could this thing block the air leak?

"It's not Eucommia, it's the glue from the juice of Eucommia, hurry up and try it."

Zhao Yin's face was excited, and he gave an order directly.

Whether it succeeds or not, you have to try it to know.

Although no one in Datang planted Eucommia, but fortunately, there are still a lot of wild ones, and in a few days, the craftsmen refined nearly 100 catties of Eucommia ulmoides glue according to Zhao Yin's method, which is completely enough for the use of steam engines.

"Master Horse, I have already sealed the eucommia glue to the steam engine according to your instructions, and now I want to test it?"

Although some did not believe that this thing could solve the problem of air leakage, these were all orders from the colt, and he had to do it.

"Ignition!"

Zhao Yin is very confident in the effect of eucommia gum, and his confidence is not in the words of Sun Simiao, but in the information he is looking for.

At the sound of an order, the craftsmen quickly fed the coal into the boiler and began to boil the water.

All eyes fell on the flywheel of the steam engine, as long as he rotated, it proved that they had succeeded, otherwise everything was a failure.

Last time, because of air leakage, the piston in the cylinder did not make piston movement at all, and the flywheel naturally did not rotate.

"Whew...... Whew......! ”

There was a sound in the exhaust hole, and then the flywheel slowly rotated, and as the frequency of the exhaust became more and more rapid, the speed of the flywheel rotation became faster and faster.

"Turned...... It's turned! ”

After seeing this scene, all the craftsmen couldn't help but be overjoyed, their efforts finally paid off!

"Yes, I will ask for credit for you in front of Your Majesty!"

Zhao Yin nodded with satisfaction.

The best part of the train is the steam engine, and now that this thing has been successfully studied, the rest will no longer be a problem.

"Thank you to the master of the horse, the reason why I was able to succeed is all the credit of the master of the horse, and the villain does not dare to be greedy."

Lin Wu hurriedly said.

If it weren't for the drawings of the horse, it would be impossible for them craftsmen to accomplish such a task.

"That's it! Then I'll wait for you to successfully study the train, and then I will take credit for you together! ”

Zhao Yin was a little surprised, he didn't expect the consciousness of these craftsmen to be so high.

If it is in the future life, such a person will definitely be called a fool, and he will not take advantage of it, which is definitely a big rebellion.

"Master Horse, I think Eucommia gum has a wide range of uses, and we need to increase production!"

As for the credit or not, Lin Wu really doesn't care now, since following the colt, they have already gained so many benefits that they are now a little numb to the benefits.

"You're right, I'll arrange someone else to be responsible for boiling Eucommia gum, and you can just focus on studying the train."

Zhao Yin nodded, he couldn't wait until he needed it every time, it would be too much time.

Not only that, but he also has to spread the planting technology of Eucommia, otherwise no matter how good the ecology of Datang is, Eucommia will be extinct one day.

"Yes!"

Lin Wu gave up his hand.

In fact, the study of trains is not a simple matter, although the technical problems are much easier than the steam engine, but it is definitely a huge project.

"The colt is in a good mood today, but the prisoner has already solved the air leak?"

Seeing that Zhao Yin had returned to his former virtues again, and after walking and staggering, Princess Changle couldn't help but ask.

"The lady really has a blue heart, and she thinks of her husband, and you guessed everything."

Zhao Yin, who was in a good mood, couldn't help but open his mouth to tease Princess Changle.

If it weren't for this girl who took it upon herself to invite Sun Simiao, then I don't know when this problem that has been bothering him will be solved!

"Do you know what I'm thinking?"

Princess Changle slowly came to Zhao Yin's side and looked at him affectionately.

"Goodbye!"

Zhao Yin's expression was blank, and he hurriedly got up and walked outside the Horse Mansion, if this girl's wish is fulfilled, I'm afraid he won't have to get out of bed today.

"Where are you going? I'll go with you! ”

Seeing this scene, Princess Changle's smile suddenly stiffened on her cheeks.

Are you so scary? Why is he hiding from himself?