Zhao Dezhao fell into a busy social interaction, and Jin Yiwei's study naturally relaxed.

From Kaifeng Mansion to Hanjing Mansion, this long-distance run, only sleeping for three hours a day, resting on the road, eating for more than an hour, and running on the road at other times.

Although these second ancestors persevered, when they arrived in Xiangyang, they were all tired like dead dogs, and many people's legs and feet were swollen.

However, they are all young, and after a few days of rest, they will be alive and well again.

They train every day, plus study, and already know the role of Jinyiwei.

This is not so much an army as a training camp.

Even the weakest second generation in this is the son and nephew of a commander.

After they are all nobles, they will at least be generals at the level of commanders in the future. It will be like a seed that will transmit what Jinyiwei has learned to other armies.

After suffering so many sins, they all cried out that they would let the other soldiers taste this torture.

After this special army arrived in Hanjing, of course Cai Lingxing did not dare to slack off, and after casually every soldier was a noble, he offended one, that is, he offended a large number of generals.

Don't the current civil officials dare not be in the limelight with the arrogant and domineering generals, and there are still fewer civil officials who have been beheaded by the generals?

The defenders of Xiangyang City were immediately placed in other barracks, and they were placed in two barracks in Xiangyang City, where the conditions were the best.

Zhao Dezhao didn't care about them, and he didn't have time to impart knowledge, except for half a day's training every day, they wandered around Xiangyang City the rest of the time.

There is money in the pocket, and the restaurants and courtyards in Xiangyang City, because of their arrival, the business has exploded several times.

And when Murong Defeng returned from the wooden battalion in the west of the city in the evening, the news that the wooden battalion had developed a new weapon immediately spread.

All the new troops were excited and saw hope.

Zhao Dezhao can control them now, not because he is a prince, but because he has given them new knowledge and hope.

The knowledge of astronomy and geography, Zhao Dezhao originally thought that the second ancestors would not be interested, but when it was really time to teach it, everyone was very enthusiastic.

This kind of news that has been blocked in all dynasties can not only be used in the year and solar terms, but also in positioning.

According to the sun scale, moon scale, star scale, and the shadow of the sun in different seasons and different times, you can test the approximate direction.

The ancients actually had tools for stargazing, not all by the naked eye.

During the Spring and Autumn Period and the Warring States Period, Zhou Tianzi built Tugui and Limu Tables in Yingchuan to measure the shadow of the sun.

Through the measurement day after day, year after year, a large number of data on the shadow of the sun were collected and recorded, from which Zhou Gong discovered the cycle of the shadow of the sun from long to short and then from short to long, and found out the change of seasons according to the change of the shadow in the middle of the day, and learned the law of the long shadow in winter and the short shadow in summer.

Therefore, he called a cycle a year, and set the day with the longest shadow as the winter solstice, the day with the shortest shadow as the summer solstice, and the two equinoxes in the change of length as the spring equinox and autumn equinox respectively, so that the four seasons of "spring", "summer", "autumn" and "winter" can be demarcated.

It can be said that the innate skills of statistics and data analysis of the ancients in China are not very high, but the application ability is very high.

Later, on the basis of the Gui watch, the armillary sphere was developed.

The armillary sphere is a general term for armillary and armillary spheres.

The structure of the armillary image is a large sphere that depicts or inlays the stars, the equator, the ecliptic, the constant hidden circle, the constant display circle, etc., similar to the celestial globe.

An armillary sphere is an observation instrument with a speculum, also known as a lookout tube, which is used to determine the equatorial coordinates of stars and celestial bodies at dusk, midnight and midnight, as well as the ecliptic longitude and horizon coordinates of celestial bodies.

After hundreds of years of development, from the Han Dynasty to the Northern Song Dynasty, the armillary sphere has added ecliptic rings, horizon rings, meridian rings, hexagrams, white channel rings, inner equatorial rings, right ascension rings, etc.

At this time, the knowledge of Si Tianjian had already measured the diameter of the earth, the length of the equator, and the moon revolving around the earth, the earth revolving around the sun, and so on.

The common people think that the sky is round, but only the emperor and Qin Tianjian know that this is not the case.

But this knowledge, which was tightly sealed, was known only to the emperor.

Zhao Dezhao also did not understand the measurement methods and calculation methods of the lunar and solar calendars.

He didn't have to teach them that, he just taught them how to use that knowledge to orient themselves.

This knowledge belongs to the application of the foundation, and in later generations in the maritime school, the first knowledge that needs to be mastered is positioning.

The second ancestors have mastered this knowledge, and if nothing else, at least they will never get lost.

Because of this knowledge, no matter how hard and tired they are, they will not give up.

But when it's time to be lazy, they won't be active.

And, more importantly, they need to prove that what they learn is useful.

Jin Yiwei's side, there has been some restlessness recently, because their training is completely different from the past, is this kind of training really useful?

The news that Murong Defeng brought back immediately made everyone realize that it might really be useful.

On the afternoon of the second day, these second ancestors of Jinyiwei, and even those scholars who specialized in surveying, couldn't bear it anymore and ran to the woodware factory in the west of the city to see what was going on.

And Pei Ge'an got a reminder from Zhao Dezhao last night, and specially prepared two shoddy pig iron cans, one of which was filled with twenty catties of black powder, and the other was filled with thirty catties of gunpowder, ready to demonstrate.

Both tin cans were buried under the walls of the adobe houses to be demolished but had not yet been demolished, and officials and brocade guards were invited to observe them.

With a loud bang, the hardness of the three-fold adobe house was now gone.

Not only is the house gone, but the place has also become a large pit with a diameter of seven or eight meters.

Ignoring the buzzing ears, everyone took a closer look, and then everyone realized that the black powder, which they thought could only be used as firecrackers, could be turned into a weapon for siege warfare.

The firearms camp was favored by many second ancestors when he arrived, and after he returned, he wanted to transfer from the Shenji camp to the firearms camp to study.

When the Jinyi Guard was established, the Jinyi Battalion had the smallest number of people, a full 300 people, and they were responsible for military discipline.

In addition to the original 300 forbidden troops, 100 illiterate guards were selected, and another 100 people were selected from the second generation to join.

They were first taught by Zhao Dezhao, and after they learned it, they passed it on to other soldiers.

Therefore, the Jinyi camp has the least number of people, but the status is the highest, and it also has the meaning of teaching camp.

Then the Shenji Battalion had the largest number of people, a full 2,400 people, accounting for 70% of the more than 3,500 people.

The firearms battalion was not favored at first, with fewer than four hundred in number, but now they are in a hurry.

In particular, Xiangyang can be regarded as Murong Defeng's territory, because it is a local snake, he is very familiar with the eating, drinking, and fun in Xiangyang, and he also has many friends, and he really let him pull more than 100 people to the firearms camp.

These people were all pulled over from Pan Weide's Shenji Battalion, but since the Jinyi Battalion didn't care, Pan Weide didn't care.

He knew one thing very well, since the imperial court had a big plan, and it was the largest and the largest number of people in the Shenji Battalion at the beginning, it naturally made sense.

But he was not in a hurry, and the leaders below were in a hurry.

"Marquis Yu, if you don't care about it anymore, our people will be taken away by the firearms battalion. You don't know how much Murong Defeng has been beaten recently, he simply treats Hanjing as his own territory, and when he looks at us, his nostrils are facing the sky. ”

Pan Weide smiled and said: "Don't sow discord here, Lao Tzu doesn't know him, is he such a person?" After getting along together for so long, they have the least number of people in the firearms camp, so they naturally feel ashamed, so why not let them show off for the time being? ”

Shi Baoxing asked, "What news did Jiang Yuhou get?" ”

Pan Weide pointed to Cao Can, who was reading the book. "Do you think he's in a hurry?"

Shi Baoxing snatched the book from his hand, and said with a hippie smile: "Deputy General Yuhou, your kid is older than me, give me face again, should I beat or beat." ”

Shi Baoji disagrees with his brother, but he has a good relationship with Cao Can. Hearing this, he pouted and said, "It's as if you won the fight." ”

Shi Baoxing couldn't pull his face a little, and raised his leg and kicked his younger brother. "If you don't accept it, I'll fight with you."

Cao Can stopped Shi Baoji, who was not convinced, and then spoke: "From the sub-camp of Jinyiwei, it can be seen that the Shenji battalion is definitely the main battalion, and the firearms battalion is the auxiliary battalion.

And now we already know that in addition to learning the same as the measurement and basic training, the throwing of firearms battalion training, the ranging of the horizon meter, which is unique.

In my guess, in addition to the current grenades and mines, there should be more important weapons in the firearms battalion that have not been made. Otherwise, what would they do when they learn horizon ranging?

And what about us? The three-point-one-line aim, as well as the trained three-stage strike formation, are unique, indicating that we will have a more powerful weapon in the future, and it is also related to gunpowder.

Another point is that the firearms battalion that trains us to pierce the bristles is also available, but our bristles are very small, and their bristles are a big brush. What can you guess from this? ”

Shi Baoxing said: "Their weapons are bigger than ours. ”

Shi Baoji said: "Big brother, you are stupid, you only think about the size, but you didn't expect that since the three-stage strike is trained back and forth in the standing position, it means that our weapons can be held by one person, while the weapons of the firearms battalion can only be fixed in place, and several people need to cooperate." ”

Cao Can's poker face couldn't help but show a yearning look. "Our main battalion will definitely have more powerful weapons in the future, this kind of weapon will use gunpowder, and it can be carried around, but I don't know how powerful it is, and my heart is itching!"

Pan Weide smiled and said: "Since we are the main battalion, we must be more important than the firearms battalion." The firearms battalion now has such powerful weapons, we will not be weaker than theirs. ”

There was a commotion outside, and a guard rushed in and handed Pan Weide a letter. "Marquis Yu, all command the envoy to pass the order, and tomorrow all the people of the Shenji Battalion will go to the south of the city to help the kiln."