Since he was so angry that he was about to die, and there was a "grandson" inside, Wei Renshi did it as soon as he said that, leaving the exercises to Li Liang, and he went to Weinan early the next morning.

When I arrived at the village, I went to the glass kiln and told the size and shape of the convex lens needed to the old kiln head and the blowers.

There was a liquid glass on the glass kiln waiting to be blown, and the blower performed a blowing technique in front of Wei Renshi, which shocked Wei Renshi.

After only three or four blows, Wei Renshi wanted to blow out the convex lens.

Wei Renshi was waiting for the convex lens to anneale, and went to find the blacksmith who was raised in the village and asked him to make the metal tube that charges the mesh tube and the fixed convex lens several prisms.

Then he stayed in Weinan and waited.

I also took the opportunity to be lazy and escaped from the barracks to rest.

After living in Weinan for two days, the blacksmith shop came over to hand in the service with his things.

After all, Wei Renshi invited Weinan to raise him in Zhuangzi, a good blacksmith in the blacksmith shop. His craftsmanship is really good. The metal tube made is exactly the same as what Wei Renshi requires. There are even patterns carved on it for decoration, which looks very tall and elegant.

The convex lenses on the glass kiln were also annealed, and the old kiln head was sent over. When they happened to run into the blacksmith, they came over together.

Wei Renshi took the convex lens and drew strokes in front of the metal cylinder. It was basically very suitable and could be installed in after a little grinding.

Suddenly, Wei Renshi was stunned and thought that there were both convex lenses and metal cylinders, but how could he stick the convex lenses in? Just stuck there is not, but there is no glass glue at this moment!

Thinking of this, Wei Renshi turned around and asked Laoyao Head: "Laoyao Head, do you think there is something stickier than paste that can sticky things very firmly?"

"What do you want to dip in?" Laoyao Head scratched his head: "The old man knew that rice soup and paste were glued on our kiln, and all the things we stuck on were made of clay."

Uh, Wei Renshi's face was black. The rice grains in the rice soup were not good at sticking to things. It was so paste on paper, but it was a bit difficult to stick glass to the metal cylinder.

"Does Xiaolang want to stick to the objects in his hand?" the blacksmith asked, looking at the things in Wei Renshi's hand.

"That's right, I wonder if Master Tan has a solution?" Wei Renshi's eyes lit up and he asked quickly.

The blacksmith smiled and replied, "The glass is hard, but the ordinary paste cannot stick to it. Xiaolang can try fish bladder glue."

"Fish maw glue?" Wei Renshi was stunned. What's it?

Lao Yaotou slapped his forehead and said, "By the way! The old man doesn't use this thing often, and he didn't remember it for a while. Xiaolang, this fish bladder glue is made by drying the fish bladder from the yellow croaker's belly, making it tormented by water, and then beat it with iron to form a gelatinous shape, which will become very sticky."

The blacksmith nodded and added: "Carpenters sometimes use it to stick hardwood to make wood."

"That's great!" Wei Renshi was delighted: "Where can I get this glue?"

"There must be many carpenters." The blacksmith said, "Young man, come and find Xiaolang!"

Wei Renshi nodded, there was a carpenter workshop in the village, and there must be one there.

Soon, the blacksmith returned with the fish bladder glue. Wei Renshi assembled the convex lens, the metal barrel and the prism together. He tried to stretch and contract a few times. Zheng was very relaxed in the telescopic expansion and contraction, not too tight or loose. Then he got up and walked quickly to the outside of the study room, looking at the tree branches in the distance.

Well? The effect was unexpectedly good!

Wei Renshi was immediately very happy and hurried out of the yard. He asked someone to lift the ladder, climbed up the roof along the ladder, and looked further away with the monocular in his hand.

As the other eye narrowed, the image in the distance gradually became clear in the eyes facing the telescope.

Wei Renshi looked at it for a long time and estimated that he could see the human figure clearly from eight hundred steps away, and his every move was clearly visible, but he could no longer see his face and appearance.

However, it should be seen from looking at the training of soldiers in the Shence Army.

After lunch that day, Wei Renshi left Weinan with a telescope and headed straight to Chang'an City.

When I arrived in Chang'an City, I rested all night, and the next morning, I immediately arrived in the army with my telescope.

When they arrived at the military camp, the soldiers had already started to practice.

Wei Renshi kept suppressing his training and waited until he finished his training before calling Li Chun and others into the military tent.

"A few days ago, I said I wanted to make an object that can make people see far away. After my experiments, it was finally done." As he said that, Wei Renshi took out the telescope in his arms and handed it to Li Chun.

"This..." Li Chun took the telescope and took it in his hand and looked around.

Everyone surrounded him and looked at him curiously. Wei Renshi knew that Li Chun couldn't use it, so he explained: "Prince Chun went to the door, put the thin end in front of his eyes, closed his other eye, and looked into the distance."

When Li Chun heard this, as Wei Renshi said, he put the telescope in front of him, then closed his other eye, walked to the door of the tent and looked up from afar.

He suddenly took several steps back, quickly put down the things in his hand and looked forward, showing a look of surprise.

Li Chun looked at the soldiers who were walking away from him, put the telescope in front of him, and was shocked. He put down the telescope and looked at the group of soldiers, but found that they were not close.

"Can this object bring people from afar closer?" Li Chun looked at the telescope in his hand in surprise: "I used this object to see that they had already arrived in front of me, but put it down and looked, it was still so far."

Wei Renshi was very satisfied with Li Chun's surprise, so he smiled and explained: "This object can help people see scenery far away. Even if it is far away, it is like being in front of you. He can see this object so that it is called a telescope. Prince Chun looks at the next place?"

Li Chun did as he did, and turned his body to look into the distance with his telescope.

"This...this thing..." Li Chun looked around and gasped: "The magic weapon of immortals! Absolute immortal magic weapon...this...this is so scared that it is hundreds of steps away! Oh!"

When everyone heard this, they hurriedly surrounded them and wanted to try it out. Li Chun handed them the telescope. After they saw it one by one, they were all in a state of gasping for a cold air and were shocked.

"This, this is really a clairvoy!" Li Liang was so scared that he couldn't even close his mouth and kept shouting.

"A little trick, if you are interested, I can teach you the principle of this." Wei Renshi said with a smug smile.

How, are you very curious about how this is done?

Hahahaha, if it can arouse Li Chun's interest and attract Li Chun's curiosity, it would be great if Li Chun also fooled him into learning more scientific knowledge and principles.
Chapter completed!