Seeing the curious expressions of many generals, Yang Xi smiled mysteriously and did not answer immediately, but motioned to the generals to follow him to the top of the city.

The training of the special training team has not been interrupted, but Yang Xi did not personally preside over today's training. After assigning the tasks, he ordered the training captains to take charge of the training. The training these days is still focused on physical fitness, and everything must be done step by step.

, don’t be too anxious.

Only those soldiers who are physically qualified can be selected for subsequent training. Special training will ultimately retain those who are outstanding in all aspects. Among the soldiers selected through strict assessment, it would be good to have one hundred qualified soldiers retained until the end.

Yang Xi's idea is that after one to two years of progressive training and actual combat, he will have a team of special warriors with special operations capabilities. These warriors can perform many special tasks, which will make future wars easier to fight.

It can also help him a lot.

Without the advanced equipment of later generations of special forces, many tasks may not be completed, but Yang Xi believes that if they are given many tasks that ordinary people cannot imagine and complete, the soldiers will also be able to complete them.

He was not in a hurry for success, so he took his time with the training of the special training team, and he could not ignore military affairs. He had to spend a certain amount of time every day to listen to Gao Shi and other generals in charge of specific training reports on various affairs of the Tongguan Town Army.

He also has to think about his own "little inventions".

What Yang Xi wants most urgently now is a telescope and gunpowder. He made the telescope by himself and has achieved results. He plans to let his subordinates take charge of the gunpowder. He has selected dozens of flexible craftsmen and sergeants to form a team.

A research and development team is responsible for the research and production of gunpowder. However, the required raw materials have not yet been shipped to Tongguan, so the development of gunpowder can only be started at a later time.

**The danger is too great. Yang Xi doesn't want to encounter any accidents during the development process. Besides, he is a marshal commanding hundreds of thousands of troops. He can just ask his subordinates to do these things. He only needs to provide them with methods and techniques.

What he wanted to show the generals today was the telescope that he had completed in the past few days and was ready for practical use.

When he returned to Chang'an, Yang Xi found a clear crystal of good quality in the West Market, and asked the shopkeeper to polish it into concave and convex lenses according to his requirements. However, the shop clerk's polishing skills were not very good, and many of the lenses were still a bit blurry.

Only a dozen pairs out of a dozen can be used. Yang Xi chose a convex lens and a concave mirror.

Test the approximate focal length in the sun. They are fixed in two ring barrels made of soft iron. The diameters of the ring barrels are slightly different. The two barrels can rotate on top of each other. The smaller one can be nested inside the larger one.

The convex mirror is used as an eyepiece. What Yang Xi is going to show to the generals is such a simple telescope, a single-cylinder.

After walking to the top of the city, Yang Xi took the first telescope in human history that was carefully wrapped from the hands of his personal guard leader Yang Dong under the surprised eyes of the generals. He placed it next to his left eye and looked into the distance.

Tongguan City in Han Dynasty, slowly adjust the focus.

Finally, the clear scene of Hantongguan City appeared in the field of vision.

Tongguan City in the Han Dynasty was being repaired, like a large construction site. The busy civil servants and sergeants on the top of the city were clearly visible through the telescope. The faces of those standing facing the sun could probably be seen clearly. After looking at it for a while, Yang

Xi took the telescope away from his eyes with satisfaction, smiled and said to the marching Sima Gao Shi, who was standing next to him with a curious face but could not bear to ask: "General Gao, try to see Hantongguan City through this object.

The state of repairs.”

"Yes, Marshal!" After Gao Shi agreed, he carefully took the telescope from Yang Xi's hand, looked at it according to Yang Xi's instructions, and slowly adjusted the focus.

"Ah?! It's so magical!" Gao Shi was startled after just one glance. He took down the telescope in disbelief, rubbed his eyes and looked at the Hantongguan city tower in the distance. After a few glances

, picked up the telescope again, put it in front of his eyes, and looked at it a hundred times more seriously than before.

After looking at it twice, he put down the object in his hand and put it in front of his eyes again.

After looking over and over several times, Gao Shi asked Yang Xi on the side with full surprise: "Marshal, what kind of magical thing is this? How can it be seen so far? You can even see clearly the appearance of the sergeant on the tower of Tongguan in Han Dynasty."

?How... did you make it?"

"This thing is called a telescope. I was inspired to make it accidentally when I woke up one morning and saw the scenery zoomed in through the dewdrops!" Yang Xi took it from Gao Shi's hand. He spent a lot of effort to make it!

After finishing the monocular telescope, he explained with a smile: "I spent a lot of effort to use polished crystal lenses to make this telescope that can zoom in and magnify distant scenery, haha!"

After Yang Xi laughed twice, he handed the telescope to Wang Sili, who was standing next to him and was more curious than anyone else. "General Wang, try this thing and see how the telescope made by me can be used in battle."

Isn’t it useful?”

Of course Wang Sili had already guessed that this object was very wonderful. After hearing what Yang Xi said, he immediately took it impatiently and looked at the scene of Hantongguan City through the telescope just like Yang Xi and Gao Shi did. "Ah?!"

After just one glance, he couldn't help but marvel.

Looking into the distance through this tube-shaped thing, the scenery in very far places can be seen clearly, and the scenery is zoomed in a lot closer. Wang Sili even saw a patrolling sergeant on the tower of Hantongguan City let out a long yawn

.

You must know that the Suitongguan City where they were standing was nearly a thousand steps away from the Hantongguan City Tower where the sergeant was standing. It was about three miles away. To the naked eye, the figure of the sergeant on the Hantongguan City Tower was very blurry.

The details of the body cannot be distinguished at all. But through this magical thing, all the five senses can be distinguished. It is really amazing. Yang Xi, who can make this thing, is amazing!

"Marshal, this thing is really amazing and very useful. With this kind of far-sighted telescope, it can be of great use during marching operations. You can discover the enemy's situation before your opponent, and you can make preparations in advance. It is very possible

That’s the key to victory!”

"That's right," Yang Xi nodded in agreement with Wang Sili. "If every general wears such a pair of binoculars, then when commanding operations, he can discover the enemy's situation before the opponent and make early preparations. This has great significance.

The use of.”

While he was talking, the telescope had been passed to other people. Pang Zhong, Li Fudude, Liu Guangting, Li Chengguang, Tian Liangqiu, Lu Chongben and other generals successively observed this magical thing made by Yang Xi. Everyone was amazed after seeing it.

They are all generals who have experienced hundreds of battles, and of course they understand the usefulness of this thing in marching and fighting. Everyone has an expectation that they can also own one.

Who wouldn’t want to own such a magical thing?

"After I improve it, I will ask the Ordnance Supervisor to mass-produce it and try to get a telescope for everyone!" Yang Xi's words suddenly made the generals excited. Seeing the admiration that the generals looked at him, Yang Xi's vanity was

My heart is a little satisfied.

Of course, he asked his father Yang Guozhong to order the ordnance supervisor to make a large number of telescopes. However, the image quality of the telescope produced now is not very good, and the gap between it and the military telescopes used by him in later generations is not generally large, but it can be used with make do.
Chapter completed!