My Daming New Empire

For Zhu Zhanji, he agreed that the Great Wall is more symbolic than practical.

How can we defend against the long border?There is only one thousand days to be a thief, how can one thousand days be a thief!

Only by using all means to disintegrate the hostile forces is the real once and for all.

Therefore, the discovery of Tongshan on the grassland this time made Zhu Di and the army soldiers reluctant to give up the huge benefits, so they made up their minds to expand their power all the way to the heart of the grassland.

Of course, the more important thing is the benefit, which is the cost. After solving the cost problem, Daming at this time will not be afraid of any enemies.

While distracted by the statistics, there was a sound of footsteps outside.Zhu Zhanji raised his head, and soon saw Li Liang rushing in with great interest. "His Royal Highness, I'm overjoyed. Deputy Ma, no...it is Deputy Ma Suo who contributed a new type of telescope to His Highness Taisun. It is said that it can reach forty times!"

Zhu Zhanji's heart moved, he stood up, looked at Liu Wan who was following him, and said, "Let me have a look."

Liu Wan, who was holding the box, immediately walked forward, put the box on the low table in front of Zhu Zhanji, and opened the box.

At first glance, this telescope is not much different from the current telescope, but he is also well-informed. Knowing this kind of thing, you can't just look at the appearance.

Holding the telescope in his hand, Zhu Zhanji looked at a big tree in the courtyard of Yongshou Palace outside the palace wall.

The binoculars work well, but the lens shakes a lot.

This is normal, whether it is a refracting telescope or a reflecting telescope, the higher the multiple, the higher the requirement for stability.

Like that kind of astronomical telescope, you can't hold it by hand at all, otherwise you won't be able to see anything clearly.Need to install a base to slowly adjust to the best viewing angle.

A tiny, imperceptible tremor, for a telescope with tens of powers, is a trembling effect dozens of times.

So even if it is a military telescope, it can be ten times or twenty times at most, and any higher multiples are not applicable.

Zhu Zhanji sat down again, and Li Liang and the others tactfully retreated to the side, out of sight.

Zhu Zhanji put one arm on the table as a support, then aimed at the tree, and began to slowly adjust the camera.

He has practiced martial arts for a long time, and his stability is very good, which also makes the camera shake not so severe.

The camera zoomed in, and he could see it clearly, and the clarity was not bad, which also made him curious about how it was made.

In his previous life, he had never touched a telescope when he was a child. Later, the military camp was equipped with various telescopes, but he didn't bother to disassemble them to see why.

He just knows that a convex lens and a concave lens can form a telescope, and a convex lens and a convex lens can also form a telescope, but he doesn't know the specific principles at all.

Although he has a reputation for inventing the telescope, the improvement of the telescope was actually made by the craftsmen of the Ministry of Industry through experiments.

For example, the telescope he researched at the beginning showed upside-down scenery. Although it can be used as a telescope, it is very laborious to see things.

Later, the craftsmen solved this problem by using the principle of light refraction, adding a convex lens and adding a refraction.

But the current lens not only looks more clearly, but also does not have an upside-down mirror image, so he is more curious.

Putting down the binoculars, he asked, "You just said that it was made by Deputy Envoy Ma? Didn't he just come home yesterday?"

Li Liang said with a smile: "Although it was contributed by Deputy Ma, it was not developed by him. The person who developed this telescope is Deputy Ma's nephew, who is one year younger than His Highness!"

Only then did Zhu Zhanji get a little curious, and said with a smile: "I think you have understood him clearly, please report back!"

Li Liang introduced the situation of Ma Zhicai's family. Seeing that Zhu Zhanji was interested in Ma Di, he also said that Ma Di was proficient in arithmetic. Although he was only 15 years old, he invented the telescope by himself, so he introduced it.

"They are foreign ministers and cannot enter the palace, so the servant did not bring them back today. When I entered the palace and wanted to see them, the servant immediately arranged."

Zhu Zhanji nodded and said: "I'm going to go to the farm to inspect the young army tomorrow, so let their uncles and nephews come to the farm to see me tomorrow."

On the second day, Zhu Zhanji met Ma Di, who was one year younger than him, at the farm.

The 15-year-old Madi has a handsome appearance, and now she has no hair, she looks like a little girl.And his expression is very much like a ranger's fearful, curious little girl.

He followed his uncle and gave a big salute. After Zhu Zhanji gave him a seat, he dared to look up at Zhu Zhanji secretly.

Except for the lack of a pair of glasses and a little longer hair, he is not much different from a junior high school student in later generations.

If you just look at him, it is hard to believe that he is proficient in arithmetic and can independently calculate the equation of the inner sum of triangles.And according to the principle of refraction of light, the multiple of the telescope can be calculated.

Especially the latter point, Zhu Zhanji can't figure it out by himself now.

What he remembers most is the calculation formula of the sextant and the test formula of the port distance for ocean navigation, because this is what he must be proficient in when he was a captain.Apart from these, he can only remember a few equations at most, and he has forgotten all the rest.

He asked in a harmonious voice: "Ma Di, yesterday you told Shaojian Li that you are proficient in "Yang Hui's Algorithm" and "Enlightenment of Mathematical Sciences". Is this true?"

He immediately stood up, bowed and said, "I don't dare to be bullied. The ancestor of the family, Yu Gong, was a miscellaneous family. The Yu family retreated all the way south to Fujian in the Song Dynasty, but in the end the country was destroyed and the family died. It is inevitable that it will fall into the hands of Yuan people. However, relying on ancestral arithmetic, they can also make a living in the pre-Yuan period. The ancestors of the family were moved to Songjiang by the Yuan people in the pre-Yuan period to help them make statistics on sea trade.

Xiaomin lived in Gusu. Because he had paid tribute to the Great Zhou, he was sentenced to be a traitor and was not allowed to take the imperial examination. "Awarded to Xiaomin. "

He is proficient in mathematics, and has a long history of family education. He can also polish crystal, glass, and process carving. This family is really the talent that Zhu Zhanji urgently needs now.

Then Zhu Zhanji asked him how he improved the telescope. He heard that a prism should be added to the telescope, and Zhu Zhanji was a little confused. Such an accessory.

If you don't understand things, you can leave them to professionals, and he won't think about them any more.After a wink, he asked Liu Wan to hand him the few equations he had copied down before. "Since this is the case, I will also test you. If I am satisfied, it is possible to help you get rid of your crimes."

He raised his head in shock and looked at Zhu Zhanji with surprise in his eyes. "Your Highness, Xiaomin is willing to give it a try."

Ma Zhicai wanted to remind his nephew, but he didn't dare to speak.

The so-called insurrection, the criminal record, except that it cannot be scientifically tested, in fact, not many people in the entire Suzhou government care about it.Because most of the people in Suzhou Prefecture are criminals.

Because of this, a Suzhou government bears nearly [-]% of the tax burden of the entire Ming Dynasty. This was the punishment of the Taizu because Suzhou government supported the Great Zhou.

He was requisitioned for nine years before he was recruited from the people. He served as the deputy envoy of Cong Jiupin, which also had something to do with his identity.However, he has now become an official. Although he is the lowest official, this crime is actually equivalent to having been cancelled.

Although Ma Di is smart, he has never studied the Four Books, Five Classics, or stereotyped essays since he was a child, and it is too late to learn now.

Now to study the Four Books and Five Classics and take part in scientific examinations, it is better to take advantage of the telescope to find a background for Ma Di directly.

Therefore, Ma Di didn't think clearly about the doorway here, but for those who have been studying these issues all their lives and want to get out of citizenship as soon as possible, they figured it out in an instant.

The grandson's promise may be a great favor to other families, but to the Ma family, it is at most just icing on the cake and has no actual benefits.

However, the nephew's innocence may be more satisfying to the grandson, so the result may be better if no other conditions are mentioned.

(First of all, although the protagonist is called Zhu Zhanji, he will never engage in that kind of base. Hehe)

Chapter 75 tasks

After Ma Di took over the equation that Liu Wan handed over, Zhu Zhanji said to Ma Zhicai again: "Originally, I planned to take the horse's deputy after the Chinese New Year, but since I am here today, I will also show the Ma's deputy to see my collection here." , In the future, these things will be spread, but also rely on Ma Suo's skills."

"Don't dare to be His Highness and say that the life of this humble minister was given by His Highness, and I am willing to do my best."

People in this era always talk about death, and there is really no way to correct this.Zhu Zhanji pretended not to hear, and walked out of the room first.

Maddy looked at the equation in his hand, then at his uncle.Ma Zhicai didn't dare to say much, but gave him a reassuring look, nodded slightly, and hurriedly followed out of the room.