Hard work pays off.

With their unremitting efforts, the world's first monocular telescope has emerged nearly a thousand years ahead of schedule.

The entire lens barrel is made of brass, which looks similar to that in later film and television dramas. It is just made in that way, so it would be strange if it is different.

Ancient craftsmen were really not built.

A round copper tube has a surface that is polished to reflect light, and the lenses are very firm, and will not break if they fall occasionally.

Of course, if you fall too many times, you can't guarantee it. After all, the glass is crispy, and now it's just ordinary glass, which is brittle!

However, no one will play with it if they are idle...

In fact, the copper smith also planned to carve it on it. Fang Yiai didn't give in to it in a hurry, and the other party was a little complaining, thinking that this was too rough.

Fang Yiai was speechless for a while.

Is this rough? According to their requirements, it is a very superb skill to be able to do this in a dynasty without mechanization.

Really, this is what he said in his heart, and he admires it very much.

This kind of craftsmanship is beyond words!

He doesn't care about so many things. He doesn't have to talk about fancy things on the battlefield. No matter how exquisite it is, it's useless. Practical and durable it is the most important thing.

The entire telescope was held in my hand, heavy and very heavy. Fang Yiai tried it and the effect was also good. He could see clearly the bird's nest thousands of meters away.

"Master, let me see..."

Beside Fang Yiai, the little fat Li Tai looked at him with a rush and couldn't wait to urge him.

After Fang Yiai explained the principle, the fat man knew what he had done. He also tried it during the experiment and experienced the feeling of clairvoyance.

At that time, I was indeed shocked by the magic of this telescope, which was amazing! I played with two lenses for a long time.

Now, his mood has been much calmer, he is prepared, and he is no longer as excited as before, but he is eager to try what the finished product is.

After all, it was the result of my own efforts, and countless hard work and sweat were condensed.

Look at my current appearance, my skin is dark like an old farmer, I have lost a lot of weight and my neck is still molting. Everything is caused by looking at glasses.

However, as soon as the telescope was built, it was first delivered to Fang Yiai.

He waited by the side for a long time, and Fang Yiai looked around, but he didn't change to play. The little fat man was too patient to wait, so he urged him.

At this moment, Susan brought Xiaohuan and Qiaoer to bring in tea. Seeing the rare things in Fang Yiai's hand, she couldn't help but ask curiously: "My husband, what is this?"

"This is the telescope, the effect is pretty good. Come and try it?"

"Made it!"

Fang Yiai and Li Tai said all day long that Susan had heard of this, but this was the first time she saw the finished product. She had been curious in her heart. After hearing what he said, she ran over happily and taught her step by step.

Soon, Susan's scream came out, and she was shocked, "Oh! That's the school you are studying! You can actually see it on the top of the mountain,"

"So amazing!"

Susan looked back at him, with countless little stars and deep love in her eyes.

"I want to see, too."

Xiaohuan was a little restrained. Qiaoer kept following Fang Yiai, knowing who the young master was, developing an innocent and romantic temperament, and shouting and approaching.

"I didn't expect to see so far!"

Susan smiled and handed it over. The three girls were holding the telescope and chatting, and even Fang Yiai was squeezed out by them.

"Okay! There's nothing to watch now."

Li Tai thought sadly in his heart, and he had to wait until their excitement passed before it could be his turn.

"Anyway, I've seen it all during the experiment."

The little fat man comforted himself in his heart, and that was the only way. At this time, Fang Yiai remembered him and turned around and asked Li Tai, "Qingque, why did you just say?"

"It's heartbreaking! Master!"

My heart, which had just been comforted by self-healing, seemed to be torn apart again, dripping with blood! The little fat man looked desperate.

Just now, you can hear the words of the master's wife, but I took them as wind in my ears. Only then did I remember them, what's the point?

Should Master treat it differently?

"nothing!"

Li Tai replied in disappointment, "I was in no mood to eat dog food anymore, so I left alone and went to the corner to lick my wounds."

...

The next day, Cheng Mansion.

As expected, the telescope sent by Fang Yiai was intercepted by Cheng Yaojin in the middle of the way.

"What's this?"

Through Fang Yiai's usual performance, although Lao Cheng said this, he attached great importance to what he had made and looked at the copper tube carefully.

"Fang Er, is this the gift you gave me? What's the use?" Cheng Chumo asked.

He didn't dislike him either, he could only say that the greater the hope, the greater the disappointment! He had been looking forward to Fang Yiai's gift, thinking that he would give him something amazing.

Unexpectedly... it was a copper tube that was useless.

"This object is called a telescope, which can see everything 1,000 meters away." As she said that, Fang Yiai took the telescope over and said, "Come with me."

Fang Yiai took the lead and ordered the servants to bring a ladder, and climbed up to the roof without saying a word.

There is no way, there are many high walls in Chang'an City, and you can't see anything in the courtyard, so you can see farther from the roof.

The old Cheng and his son were never An Sheng's master, and there was nothing to hesitate. They then climbed up and placed the telescope in front of Lao Cheng, "Uncle Cheng, close one eye to see."

Old Cheng squeezed his left and right eyes for a long time, but he didn't know which one to close. Finally, he simply covered it with his hands, his eyes wide as if they were as big as a copper bell, and he leaned forward and took a look suspiciously.

"That's... the palace gate?"

Looking at the scene in front of you, the palace gate seemed to be in front of you, Lao Cheng asked in disbelief.

He seemed to have seen a ghost, grabbed the telescope and looked at it with his naked eyes, only seeing a little blurry shadow.

The Chengfu and the palace gate are only separated by a street, but at least a few kilometers. Then they raised their telescopes so that even the soldiers on the city wall could clearly see them.

Cheng Yaojin's life was not like Susan and the other three. He just treated it as a toy and immediately thought of military uses.

He knew how important "intelligence" is to war!

If he has this telescope in his hand on the battlefield, he can see the enemy, but the enemy cannot see him, which will have a natural advantage and often determine the victory or defeat of the war!

Seeing my father's reaction, Cheng Chumo also put away his contempt. He knew that although this guy was small, it was definitely not simple. He also looked at the telescope and hoped that Lao Cheng would show him after seeing it.

"This thing is a big deal!"

Cheng Yaojin was shocked and immediately made a decision, "Go! Enter the palace!"

He carefully put away his telescope, ignored Cheng Chu's silent and resentful eyes, took the lead and took the two of them to the palace.
Chapter completed!