After spending a little thought, Zhang Qi tested the telescope in his hand with the naked eye.

By comparing the shape and size of the objects in the telescope with those seen in the other eye at the same time, he came up with a magnification of about four times the telescope in his hand.

Of course, it is not necessarily accurate, because what you can see with a telescope depends on your eyesight.

The purpose of the telescope is nothing more than to pull the scenery in the distance.

It's like this telescope, which is about four times larger, and its role is to pull something from 400 meters to a distance of 100 meters in your eye.

The principle is similar to that of glasses, but with the use of imaging technology.

And to put it bluntly, the telescope does not look at things, but light, and the more light is reflected, the clearer what you see.

Putting down the novelty in his hand, Zhang Qi nodded with satisfaction, and praised the jade craftsmen who were still standing beside him.

"The craftsmanship is good, and you will also take more apprentices in the future, and this kind of telescope will inevitably be mass-produced in the future."

The old man's expression was a little excited, the craftsmen who came in with him did not have one hundred and eighty people under his hands now, that is, he had not been reused before, and there were only three or four apprentices.

"Eh, don't worry, the old man is going to recruit apprentices, with your approval, those dolls will definitely be interested in this craft."

Zhang Qi smiled: "Don't worry, you work hard, polish the rest of the materials, these two kinds of lenses, the big one is the objective lens, the small one is called the eyepiece, the size of the objective lens is like this for the time being, but the eyepiece."

Take the piece in my hand as an example, step by step to ponder the smaller, let's count five, and first polish out five gradually smaller eyepieces. ”

"No."

The old man was old, and his hands couldn't stop trembling, Zhang Qi waved his hand, so that he didn't have to salute in the future, lenses, even in the sixties and seventies of the previous life, the accuracy of the manual work was higher than that of the machine, which depended on the experience of the craftsmen, so this old jade mason was a treasure.

After instructing the old craftsman to take his apprentice to continue polishing the crystal lenses, Zhang Qi went to look at those crops again.

Potatoes, corn, sweet potatoes.

These crops have been sown in the world for almost two months.

Now they are growing green.

Because it is a test field, only one acre of land is planted for each crop.

The tallest is corn, which is now only a little shorter than a man.

In the potato field, the buds were waiting to be released, and seeing the potato flowers growing from the ground for the first time, Zhang Qi understood why this thing became an ornamental plant in Europe.

It's really good-looking.

And the sweet potato is a little different, compared to this corn potato, the sweet potato is very inconspicuous, the sweet potato seedlings are growing in the ground, if you don't pay attention, you just feel that this is a wasteland overgrown with weeds.

But Zhang Qi knows how many people will be saved from starvation by the time the sweet potatoes are ripe.

Zhang Qi was a little lucky, glad that he was a traverser, and glad that he knew the usefulness of sweet potatoes, potatoes and corn, otherwise, according to the normal historical process, even Europe, which regarded potatoes as one of the staple foods, was resistant to this crop when potatoes first spread in.

This resistance lasted for centuries, and it was not until war, famine and other unnatural factors that the people of Europe brought potatoes to the table.

Squatting in a staggered place of a few acres of land, Zhang Qi squatted down, grabbed a handful of soil and rubbed it, and in the days of crossing, he also changed from a half-hung theorist who did not understand agricultural affairs and could only spread on the Internet, to a semi-expert who would look at the fertility of the land and the growth of crops.

People are forced out, and if you want to live a better life, you need to push yourself, not to mention, this is still an era with almost no obstacles.

The only thing he has to do is to clean up Liuhe!

"I've seen you."

While Zhang Qi was inspecting the soil, several elders brought a group of eighteen or nineteen-year-old young people to these experimental fields.

They are the teachers of the Riding and Slashing Academy, and those young people are naturally students.

Zhang Qi stood up and hummed, waved his hand, and stopped the students from saluting.

"Have an agriculture class today?"

Zhang Qi asked casually.

The head of the academy teacher bowed: "Yes, you ordered the selection and breeding of high-quality potatoes, corn and sweet potato seeds as soon as possible, so the school has increased the agricultural course to four classes per week, and today is the last agricultural class." ”

"That's right, yes, take good care of these three crops, do a good job, and wait for the opportunity to go down in history."

"Your Majesty's order, we will keep it in mind."

"Well, there aren't many things to worry about corn, but potatoes and sweet potatoes need to be taken care of, and their habits will cause them to accumulate disease toxins from the nature of the land, so you have to figure out how to breed non-toxic seedlings.

Of course, it takes time for toxins to accumulate, so you don't have to be too anxious and just follow the normal process. ”

Zhang Qiyang said freely.

Several teachers nodded, jotted down in their notebooks, and then gave their promises.

And the students who followed behind those teachers were also carrying hoes and dustpans, looking at this side curiously, but when they looked at Zhang Qi, their eyes were full of admiration and admiration.

“.”

After talking for a while, Zhang Qi also felt that he had disturbed the teaching of the teachers in the academy, so he waved his hand, left the last sentence and left.

"Let the Divine Guard lead a few agronomists to the towns of Stegia, where the climate is very cold, and cultivate a batch of hardy crop seeds, and then bring them back to cross with the crops here, and the land outside you know, I need some adaptable crop varieties."

After finishing speaking, Zhang Qi left the riding and slashing world in full view of everyone.

Outside.

The sun was shining, and it was another scorching day.

The cicadas chirped knowingly.

Get out of your bedroom.

Bai Xing was already waiting at the door, or rather, she was guarding the door as soon as she found out that Zhang Qi was gone.

"Your Majesty."

Seeing Zhang Qi come out, Bai Xing bowed slightly.

Zhang Qi nodded: "Is there anything in my absence?" ”

"Back to you, everything is normal."

"Well, that's fine."

"Come out for a walk with me."

Crossing the threshold, Zhang Qi said softly.

Countryside.

Jiaoli is a county seat.

And the central governor's mansion is outside the county seat.

Therefore, there are several villages and towns more than ten miles from the range of the Governor's Mansion.

The two rode on horseback, followed by more than a dozen guards from the Governor's Mansion.

Seeing such a battle, the villagers did not see the fear of other nobles, but greeted them warmly.

"Captain is well."

"General Zhang has been doing well lately."

"Dashu Chang'an is good!"

The greetings were endless, and Zhang Qi had to keep a smile and nod his head.

Since the last time he lent troops to Huo Quai, his false identity title has been promoted from a young man to a great chief, and if he has any more merits, he will be named the Marquis of Guannei.

And this time, Liu Che rewarded Wei Qing for the first merit of Guan Neihou.

(End of chapter)