After arranging everything properly, Zhao Yin could be regarded as having a good life, and it was not until the seventh day of the Lunar New Year that Lin Wu came to pay him a New Year's greeting, and he asked about the situation of the steam engine.

"Can the steam engine be used in textiles?"

After chatting a few words, Zhao Yin began to ask.

A few years ago, after Lin Wu reported to him the annual output of the steam engine, he decided to apply the steam engine to textile to increase the speed of weaving.

"I used it, I used it, with the steam engine, the weaving speed has been greatly improved!"

Speaking of this, Lin Wu was very excited.

Since it was in the testing phase, only one machine was installed, but this one machine was enough to cover many workers.

"Then let's officially promote it!"

Zhao Yin was very satisfied with this result, which was also expected.

"It's good, but then you're going to have to lay off a lot of employees!"

Lin Wu was very entangled.

These people all live on the monthly income of the workshop, and if the machine replaces the labor, it will definitely cause many people to lose their economic resources, and he is a little unbearable.

"Don't worry about this, with machines involved in production, the output will inevitably increase, and the workshop can continue to expand!"

Even in the later era of advanced technology, labor was indispensable.

"That's great!"

With Zhao Yin's words, Lin Wu was finally relieved.

"But if we continue to expand the scale of production, will it have an impact on the market price?"

After a little thought, he asked a new question.

"The price will inevitably fall, but after the price falls, the people will be more able to consume, so as to increase sales!"

Small profits but quick turnover, in fact, that's what it means.

As long as the sales volume goes up, the profit of the workshop will not only not fall, but will rise!

"That's great!"

With Zhao Yin's click, Lin Wu immediately understood.

"Then let's promote it in large quantities!"

"But what if the other workshops also use the steam engine?"

Now there are many textile workshops in Guanzhong, and if other people's families follow Chang'an, it will definitely have an impact on Chang'an workshop.

"Wouldn't that be better? We can make a lot of money just by selling steam engines! ”

Zhao Yin waved his hand nonchalantly.

"But what if someone also figured out how to make a steam engine?"

Lin Wu was still not at ease.

"Under such a strong economic foundation and manpower base of the imperial court, the steam engine has been studied for a long time, and it is estimated that it will be more difficult for other powerful and wealthy families to develop it, even if it is really developed, it is a good thing!"

He developed the steam engine for the purpose of the industrial revolution, not to dominate the industry.

Besides, even if someone else had developed a steam engine, he would have already been replaced!

"Master Pony really cares about the world!"

Lin Wu arched his hand in admiration.

If other people get such a treasure as a steam engine, they will definitely take precautions, for fear that someone will steal from school.

But the colt didn't worry at all, and he had to sell the steam engine to other workshops!

"Alright, let's do it!"

Zhao Yin pouted at the door.

"Yes!"

The purpose of the New Year's greeting has been achieved, and Lin Wu left with his hands.

……

Before Zhao Yin had lived a few days in the Horse Mansion, Li Er sent someone to summon him to the palace.

"Father-in-law, you asked your son-in-law to come over, but what's the matter?"

Zhao Yin was very helpless, no need to guess, this old man was in such a hurry to call him over, there must be something important, and it was very tricky.

After looking around, Zhao Yin immediately became vigilant, because at this time, there were only two people in the imperial study, he and Li Er, which further illustrated the seriousness of the matter.

"There has been no movement in the Pony Mansion until now, presumably you must have a method of contraception in your hands."

Li Er didn't talk nonsense, he went straight to the point, opened his mouth and asked for it directly.

"Father-in-law, this is a bad word, for such a matter, you should look for Divine Doctor Sun, instead of coming to me to discuss."

After hearing Li Er's words, Zhao Yin's face suddenly turned black.

When did he use protective measures, he had obviously worked hard, but they couldn't conceive, and he really couldn't blame him.

"I have already inquired, although there is medicine among the people, but if that thing is taken for a long time, it will be very harmful to women, and even having children in the future will become a luxury."

"I warn you, if you dare to let Lizi take medicine, Lao Tzu will not be finished with you."

Speaking of this, Li Er's gaze at Zhao Yin became more and more unkind, and he had a hands-on posture.

"Good and decent, how could my father-in-law think of this problem?"

Zhao Yin was even more speechless.

Is he the kind of person who only knows how cool and doesn't know how to understand his daughter-in-law? directly changed the topic at the moment, and if he continued, he was afraid that the two of them would die of embarrassment.

"There are many young concubines in the palace, and they are not suitable for pregnancy now, so I have to lead by example!"

The corners of Li Er's mouth twitched slightly, but he still spoke it.

Zhao Yin suddenly realized, there are indeed a lot of cardamom little Loli in the harem, could it be that this old man is ready to attack them, and Zhao Yin's gaze at Li Er couldn't help but be strange at the moment.

is so old, and he still has to eat tender grass, it is really shameless, Zhao Yin kept slandering in his heart.

"Father-in-law, as long as he accepts some adult women in the future, isn't it?"

Zhao Yin pursed his lips, and scolded Li Er in his heart for being a beast, these are all children who have not grown up, he can't bear it for a few years, and wait for them to grow up before starting?

"This is a problem left over from history, how can I change it with a single word?"

Li Er had a dark face and replied unceremoniously: "If I remember correctly, it seems that the women in your house are not adults, right?" The biggest one is just beauty! ”

"Father-in-law, the topic has run away, what did we just say? To contraception! It's a problem with contraception! ”

Zhao Yin secretly wiped a cold sweat, good guy, how can you get into trouble in a good manner, this is not a good situation.

Besides, getting married is not his idea, all matters were handled by Li Er, he just adhered to the principle of taking advantage of the bastard.

"Actually, this matter is also very simple, as long as Your Majesty pays attention to the safe date to have sex, then there will not be much of a problem."

I know that if I can't say a satisfactory answer today, this old man will definitely not let himself go easily.

"I have a lot of opportunities, where is the leisure to pay attention to this, besides, I have so many concubines, I can't remember it at all!"

Li Er looked Zhao Yin up and down, and his gaze was clearly looking at a fool.

Which emperor still has to remember this thing every day, isn't it a big joke?

"Hmmm! Then I think about it, it shouldn't be difficult to make an invention, experiment, and solve this problem. ”

Zhao Yin once again despised him in his heart.

O livestock! Brutes! Such shameless words, to be able to say so justifiably, are simply shameless.

In later life, he had read some classics, and there were also records of contraception, and one way to do it was to use the cecum of sheep to prevent pregnancy.

Although it can have the effect of contraception, the comfort is inevitably insufficient, not to mention, the taste is not flattering, and it is naturally impossible for him to use such backward means.

The small raincoat of later generations is a rubber product, although Datang has now begun to plant rubber, but it is not yet the harvest season.

At the moment, he thought of eucommia gum again, maybe he could use him to try to make a small raincoat, but I don't know if it will be successful.

Therefore, Zhao Yin did not pack the ticket in front of Li Er.

"Well, you kid is doing things, I've always been relieved, and this matter will be handed over to you."

Li Er's expression softened slightly, and then he waved his hand to leave.

Zhao Yin also knows that relying solely on the publicity of "Zhenguan Daily" cannot eliminate the problem of contraception, so the research and development of the small raincoat cannot be delayed.

After leaving the palace, he rushed directly to the general as a prisoner, and did not gather everyone to hold a meeting to study it with great fanfare, but separately called the old king who was in charge of sealing and explained his thoughts and what he wanted.