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Although Zhao Hui has not taught them new knowledge for a long time, their respect for Zhao Hui is from the bottom of their hearts and will not be reduced by the passage of time.

Zhao Hui will always be their most respected teacher in their hearts.

But in fact, Zhao Hui is now very little who can really teach them.

For Shen Kui's questions, Zhao Hui is rarely able to give direct answers now.

It's more about providing ideas and methods for them to explore on their own.

The ideas given by Zhao Hui can save them from many unnecessary detours.

"Teacher, I have been trying for a long time the clairvoyance you mentioned last time, but I can't see far."

After Zhao Hui answered some questions for the others, Shen Kui finally asked.

He is the best in this group of students, and he has the deepest understanding of the knowledge that Zhao Hui taught at the beginning.

During Zhao Hui's absence, if other people couldn't solve the problem, they would also come to consult Shen Kui.

"Show me the clairvoyance you made."

Zhao Hui and Shen Kui entered his laboratory together.

Shen Kui is now making a monocular, Zhao Hui picked it up and walked to the window.

One eye is closed, and the telescope is pressed against the other.

The view outside the window is a little bigger, but it also becomes a little blurry, and it is a little uncomfortable to look at.

It's almost magnified by a factor of two.

Zhao Hui's monoculars were dismantled, and then two mirrors were taken out.

It was found that the two mirrors were about the same size.

"If there are any others, take a few pieces of different sizes." Zhao Hui said.

"Yes."

In order to be able to get clairvoyance, Shen Kui was almost enchanted during this time, and there were all kinds of mirrors everywhere in the experiment, some round, some square, and different sizes, all stacked in a box.

Zhao Hui took a few different pieces, and then walked out of the laboratory.

The sun outside was still very hot and sunny.

"Each convex lens has a different focal length."

Zhao Hui held a convex lens, and the sunlight hit the convex lens, and a point of light appeared on the ground.

"When this spot of light on the ground is the brightest, the distance to the convex lens is called the focal length."

"The focal length of each convex lens will be different."

Zhao Hui took out another piece of paper, on which were written a few words.

Place the convex lens on top of the paper, constantly adjusting the distance from the paper.

"You see, the convex lens is at different distances, and the scene we see through the convex lens is different."

"Clairmind needs two lenses, this one is called an objective lens, which refracts the distant scene, and this one is the eyepiece, which presents the refracted scene in our eyes."

While Zhao Hui was talking to Shen Kui, he was also constantly trying.

"In addition to the monocular, there are also binocular."

"Eyepieces can use this concave lens. Convex lenses are also fine, there are some differences between the two, and you can try it slowly on your own. ”

Zhao Hui himself has no time to spend on physical chemistry.

Maybe he can stay in the Yellow Turban Village and study with Shen Kui and them, and he can also become a big scientist.

But his current mission is not to study physical chemistry, he has more important things to do.

Zhao Hui spent an afternoon making a simple telescope with Shen Kui.

The effect is not very good, but it is a little better than what Shen Kui did before.

After seeing the Yellow Turban Village, Zhao Hui left.

It's just that when he left, he took the Tiger King with him.

This was the first time he brought the Tiger King out of Taihang Mountain.

The body of the tiger king has also begun to decline, and in two years, it will become very difficult for him to catch prey in the mountains and forests.

Its speed is decreasing, its stamina is decreasing, and then it is eliminated by the forest.

Zhao Hui came to Taihang Mountain this time, and the main purpose was to take the Tiger King to Yecheng.

The son's body is also in trouble, and although he has now captured a tiger, the tiger has never been in contact with humans since he was a child.

Now he is in a cage, and it won't be long before he dies.

As the king of the jungle, it is impossible to endure being locked in an iron cage all day.

This was the case with the mother of the Tiger King.

And these tigers, the wild nature has not gone, and it is impossible for Zhao Hui to let them out.

And the Tiger King, although he has not been out of Taihang Mountain for many years, he has also seen human cities when he was a child, and now in Taihang Mountain, he also occasionally comes into contact with people in Heifeng Village.

It's used to humans and won't hurt them.

Zhao Hui deliberately got an ox cart and let the Tiger King lie on it.

It's just that the old cow who pulled the cart suffered, and I don't know how many times I was frightened along the way, and from time to time a big lump of cow shit fell from behind the buttocks.

"Lord, this clairvoyance is really amazing."

Along the way, Huang Kui took a look at the clairvoyance and looked at the west.

It is obviously far away, and as a result, it feels close to you by looking at it with this.

"With this clairvoyance, it will be much more convenient to investigate the enemy's intelligence in the future."

Scouting is a high-risk profession that is more dangerous than the average sergeant.

Every time they tried to get accurate information, they almost had to risk their lives.

As long as it is discovered by the enemy, it is a life-and-death escape.

Although they are safe if they don't get close, if they don't get close, it means they can't get any important information.

If you get too close, you'll be easy to spot.

And with clairvoyance, they are much less risky.

"Brother Kui, show me, let me see." Wu Youcai shouted.

The guards were curious, and like a group of children, they had found a fun toy.

"Don't rob it, if you break it, it's a big sin." Huang Kui shouted.

"It doesn't matter, there will be a lot of this thing in the future, and I will see further."

Zhao Hui believes that Shen Kui in the Yellow Turban Village will not be long before a batch of new telescopes will be sent to Yecheng.

Now this one can only be regarded as a trial version.

When Zhao Hui returned to Yecheng, the telescope fell into the hands of Guo Jiajia and them.

Dian Wei, Zhao Yun and others also experienced it for everyone.

Nature is amazing.

I also admire Zhao Hui even more.

Although Zhao Hui said that it was made by Shen Kui, Guo Jia and Zhao Yun all knew that Shen Kui was Zhao Hui's disciple.

Stand tall and see far.

In war, if you find the enemy first, you can deal with it calmly.

Although the telescope is just a small tool, everyone here knows its importance.

When the army is advancing, afraid of being ambushed?

With a telescope, you can find it earlier.

When you find the enemy, with a telescope, you can know the number of enemy troops more clearly, and even see the commander of the enemy army.

When chasing and killing the enemy, you can also see the enemy's escape route.

And at sea, it's even more of a weapon.

It can be said that it is second only to the compass that can discern the direction.

"Lord, how is the output of this clairvoyant, I think it can be sold for 100,000 yuan." Wei's eyes lit up.

", you'll know the money."

Zhao Hui's face was dark, he specially called Wei Shuang, but he didn't want him to use this to make money.