I was engaged in infrastructure construction in the Han Dynasty [Transmigration Book]

Liu Tan asked implicitly, but Liu Ju understood what he meant, and said with a sigh: "Even though the matter of going to sea before the father was nothing on the surface, it still hit him hard."

After all, after drifting for so long, I haven't seen any fairy mountains. This journey is magnificent, but it's all in the world.

Liu Che vaguely felt that he might not be able to see the immortals and go to the fairy world.

He never doubted the existence of that place. Even if he doubted it at first, he stopped doubting it after Liu Tan returned to the palace.

It exists in the fairy world, but it's a pity that he didn't have the chance to see it.

No matter how strong Liu Che's heart was, he couldn't help but feel negative and lost, so he basically gave up his thoughts of continuing to search for the fairy world, and began to think more about the affairs behind him.

In fact, he found that even if he left immediately, there was not much to worry about.

The big man has entered a very stable development period, of course he still has concerns about Liu Ju, but no matter how mature Liu Ju is, he is still a child in his eyes, and there are still things that are not thoughtful.

At the beginning, his father, Emperor Jing, also saw him in the same way, but except for the flurry when he first ascended the throne, Liu Che also came over a little bit.

He believes his son can too.

The only thing to worry about is probably Liu Tan who insists on staying in the northern border country and refuses to come back.

Liu Tan has always felt that he is very quick to take revenge, and that revenge never lasts overnight, but in Liu Che's view, he is still too stupid. According to Liu Che's logic, when I find that you have signs of being unfavorable to me, I will do it. You are dead.

Isn't this just taking precautions?

As for revenge, no matter how hard you beat back, you will be beaten first.

So Liu Che was very worried, very worried, because he was afraid that if he was gone one day, the child would suffer.

So much so that he no longer has any second thoughts.

If he goes, he must first issue a will to make Chen Ajiao the queen mother. A queen mother may not be very useful, but at least it can add an extra insurance for Liu Tan.

Liu Ju didn't say these words, but the few words he said before were enough for Liu Tan to understand.

He couldn't help sighing, it was his negligence, Liu Che was so strong all his life, even if he was frustrated, he would never show it to others.

For a moment, Liu Tan felt sorry for him.

This led him to even think that there was nothing wrong with Liu Che wanting to live forever. Even ordinary people would say that it is better to live than to die, and to be civilized is that ants still steal their lives.

For a person like Liu Che who has made great achievements and firmly believes that he can still create achievements, there is nothing wrong with wanting to live.

Liu Tan knew that he had a double standard. The problem with Liu Che was not that he wanted to live forever, but that he had done many things that could be called stupid in order to live forever.

After thinking about it seriously, he decided to get his father some fun and delicious food. Mood can affect a person's health very much.

Liu Che has pursued the things for half his life, but now he suddenly gives up, and no one will be reconciled to it. The more determined the person is, the more hurt he will suffer.

It just so happened that Liu Che might go to visit the palace in Mount Li in two days. The terrain there is high, so Liu Tan can find something new.

In fact, Liu Tan wanted to do this new thing when he went to sea, or after he went to sea, he found that he had neglected one thing, which made him unprepared, but at that time he didn't have anything convenient, so he could only regret it .

That thing is a telescope.

In fact, the telescope is simpler than some of the things he made before, but Liu Tan has always been concerned about it—this thing is too intrusive to privacy.

You must know that the houses of the Sangong and Jiuqing are usually next to the palace, that is to say, once they have a telescope, these people can see the situation in the palace by climbing on the roof of their own house.

Of course, the rammed earth platforms of Weiyang Palace and Jiaofang Palace are very high, so it is not easy to see clearly inside these two palaces, some ordinary buildings are no problem.

The emperor's harem is a little far away, and it may not be clear, but the prince's family members are all in the uterus, which belongs to an independent palace, and is also next to Liu Tan's mansion in the east.

That is to say, people who live in Liu Tan's position can see the prince's family as long as they climb up to the roof and hold a telescope.

This is too offensive.

Moreover, it is impossible for military guards to pay attention to the roof. In addition, the current roof is herringbone-shaped from the side. People are hiding on the other side, so they can’t see it here. Can hide on the other side, unless you can fly and patrol in the sky.

But if there is such a technology, I believe Liu Che has already started thinking about how to go to heaven.

This led Liu Tan to realize that they needed a telescope after they went out to sea.

This thing is very useful at sea.

But at that time, he didn't have the conditions to do it. He didn't have any glass or crystal. After all, he was going out to save people. How could he bring these things?Unless all the glass on the ship is removed, then the problem arises. If the glass windows are removed, what should we do if there is a wind and rain? Do you use your body to block it?

Not to mention when he got to Luzon Island, unless he set up a glass workshop on that island, there would be no raw materials.

So here comes the question... He can build a glass workshop, but where can he find a craftsman?

The difficulties were one after another, which led Liu Tan to stop doing it at all in the end.

Now he wanted to give Liu Che something new to play, so he naturally thought of the telescope.

Anyway, he made it first, and gave this one to Liu Che. He can do whatever he likes. If Liu Che chooses to cherish it, Liu Tan will regret it, but he will not say anything.

The telescope is simple and simple, but it is also very complicated. After all, it contains many types, including monoculars and binoculars, from ordinary telescopes to astronomical telescopes, and the level of craftsmanship involved is not at the same level.

In fact, Liu Tan looks a lot like making an astronomical telescope, but unfortunately there is no such sophisticated technology now.

A telescope is composed of an objective lens and an eyepiece, among which the objective lens is a relatively important link. The objective lens is generally composed of lenses. In fact, if it is a simple telescope, it is not impossible to use a single lens, but a single lens is easy to cause phase difference. So not only the objective lens needs a set of lenses, but the eyepiece still needs a set of lenses.

To put it simply, the simplest kind of telescope can see far away, but it is generally not precise enough, so the effect is distorted. You can see it when you see it, but the house is crooked, and people are all kinds of strange shapes. Just like those who stand in front of a distorting mirror.

Of course, Liu Tan couldn't let Liu Che play with this thing, let alone the issue of whether it is exquisite or not, the main reason is that watching too much is not good for the eyes and it is easy to get dizzy.

He thought about this matter for a long time, and finally asked the Mo family and the Gongshu family to send a few smart disciples.

Now these two families have basically shifted their focus to him. Mo Shi and the others are working overtime to continue researching the ship. It is impossible for the Mo family not to see the opportunity they got.

So it's not surprising that he started to move closer to Liu Tan's side.

Not to mention the public losers, they have already taken refuge in Liu Tan.

At this time, Liu Tan can also reveal his original intention a little bit - he never wanted to rely on a certain genre, what he wanted was the most advanced technology, it doesn't matter who has the technology, he can use it if he can .

As for whether the two families will be unhappy, he doesn't care, if you have the ability, don't come here.

This is the confidence to hold resources in hand.

And the public loser and the Mohists really had to come. If they didn’t come, they would be one and the other. It’s not just a problem that they didn’t get it, it might make the other party go further. The difference between the inside and the outside is too big.

The one from Gongshu's side was Gongshucan's nephew, Gongshuchuan, while the Mo family sent Mojiu simply and rudely.

Liu Tan is not very familiar with Gong Shuchuan, and has never been in contact with him before, so when he saw Mo Jiu, he was a little surprised: "Why do you have time to come here? Didn't you go to help Mo Shi?"

Mojiu scratched the back of his head and said, "This... I have limited achievements in that area, and I don't understand many things. The elder brother disliked me for being slow in doing things, so he drove me back."

Liu Tan laughed loudly after hearing this: "Then I have to make it clear first, if you don't do the tasks I ordered quickly, then I will also send you back."

Mojiu said solemnly: "Don't worry, Your Highness, I heard that this time I'm going to play with glass, hehe, I like playing with glass the most."

Liu Tan took a deep look at him: "You better remember this sentence yourself." Sometimes you cry.

Gong Shuchuan on the side didn't show much when he saw that Liu Che was more familiar with Mojiu. Although he looked a little reserved sitting there, he knew not to interrupt randomly, and it was fine if he didn't make any small moves.

Liu Tan said directly: "Don't worry about what I want you to do next, make it, and then improve it according to the shortcomings of that thing."

Gong Shuchuan was a little surprised: "That's...that's it?"

Since His Royal Highness the King of the Northern Realm has finished products here, why let them come?

Even if it is a blueprint, as long as you find two craftsmen, you can make it.

Liu Tan nodded: "That's it. However, you haven't done anything with me before, so you may not know much about it. What I want is not for you to recreate something. What I want is for you to try to make something better based on my original foundation. Exquisite is more advanced, I can only provide the elementary level, as for upgrading this elementary level, that is your own business."

Gong Shuchuan took a look at Mojiu, and found that Mojiu didn't seem surprised at all.

In fact, Liu Tan has done a lot of things, and there is really no need to be surprised by this method. The only thing that needs to be done is to try to calm down. The strength of these people is true craftsmanship, but craftsmanship in this world There are too many good people, but it is very rare to invent and create by yourself.

What they are most proud of is that they have a flexible mind and can make many weird things.

It's a pity that their so-called flexible brains are far behind the King of the North.

For example, now His Royal Highness King of the North has given them a blueprint, and the two of them gathered together to look at it for a long time, but they didn't understand what it was!