Tinghe quietly walked in, lit the lamp and candle, and the space lit up, Zhao Hanzhang realized that the sky had begun to darken at some point.

She rubbed her slightly sore eyes and warned herself not to indulge in entertainment.

That's right, these funny letters are really entertaining.

Zhao Hanzhang put away all the letters, then went to touch the official documents, and looked up to see Fu Tinghan on the opposite side of the diagonal side bowing his head and writing something, he didn't look up for a long time, and he didn't even alarm him by lighting the lamp.

Zhao Hanzhang couldn't sit still again, just like a child with ADHD, he got up and walked there.

She walked up behind him and looked over and saw him drawing on a large piece of paper.

She was a little surprised, "This is ......"

Fu Tinghan came back to his senses, put down his pen, and said with a smile: "This is Jian Yi and Liyun Yi, since the armillary sphere is gone, then we don't need to make another one that is exactly the same as it, just simplify it." ”

"The armillary sphere is originally a multiple structure, with a zodiacal ring, a horizon ring, a meridian ring, a hexagram, a bisecting ring, and a bipolar ring...... This kind of multi-ring structure is assembled together, and there will be a large center difference under the center coincidence, and each ring will shade a certain celestial region, and the deviation of the observation will be very large, so I think it is better to simplify, and some things that can be calculated by arithmetic do not have to be done. ”

Zhao Hanzhang: "For example? ”

"For example, the white ring can be eliminated, and the position of the moon can be calculated mathematically," Fu Tinghan said: "I talked to Guo Pu, and through such observations, we have made calendars and monthly calendars that can be infinitely close to nature." ”

Zhao Hanzhang was amazed, nodded and said, "Then make it, I'll let people prepare the materials." ”

Fu Tinghan gave her a list, this thing is difficult to do, because there are not many people who know, and they will do even less, so many rings, just installation requires a lot of calculations, and the speculum produced is also highly technical.

Oh, this speculum is equivalent to an astronomical telescope, which can determine the equatorial coordinates of stars and celestial bodies in various time periods, as well as the ecliptic longitude and horizon coordinates of celestial bodies.

Fu Tinghan thinks that he can improve it slightly so that it can see more clearly and see more.

This thing is not difficult to do, because it can be achieved with current technology and materials.

Zhao Hanzhang took the order and responded very happily, "It's not difficult, I'll let someone prepare it for you." ”

Fu Tinghan saw that she was so convenient and said, "That'...... Make another muddy image? For demonstration. ”

Hun Xiang, that thing only uses a lot more copper, Zhao Hanzhang was stunned.

When Fu Tinghan saw her like this, he tried to persuade her, "If Guo Pu sees that we have a chaotic image, he will definitely be even more reluctant to leave." ”

Just thinking about it, he was a little reluctant.

Fu Tinghan looked up at her with blazing eyes.

Zhao Hanzhang couldn't refuse under his gaze, and couldn't help nodding, "Okay." ”

Fu Tinghan couldn't help laughing, and immediately pulled the list in her hand to add the materials to the muddy elephant, and saw that he didn't hesitate to add the required copper weight to it, she knew that he must have already calculated the copper needed to make the muddy elephant, but because she was poor now, she didn't mention it before.

Zhao Hanzhang took the list and sighed, "In the past, because our territory was limited, and our money was lighter than others', we were afraid that the money with the word 'Zhao' would damage the market, and we had to calculate carefully every time we made money." ”

"I'm not afraid now, not only because our territory is bigger, but also because of the stability of our power, and the purchase value of the word 'Zhao' is also stable, but at this time, I found that there was not enough copper." She sighed deeply: "We still have too few copper mines to discover. ”

It was also after officially taking over the government that Zhao Hanzhang learned that the official money of the imperial court was not enough every year, and in the places where she could not see, the money was not enough to circulate at all, so the silk, cloth, and grain were all used as money.

This will be the case not only north of the Central Plains, but also in Jiangnan and Jiangdong.

Yuan Li Bao said that a small coastal county town uses more of a shell than copper coins.

When she received this piece of information that Yuan Li told her like a joke, she almost suspected that she was not in Wei Jin, but in Shang Zhou.

At the end of the day, it's because there's too little copper.

But she didn't dare to replace copper with something else, it was too dangerous, at least not for now.

Hundreds of catties of copper, let's take it from the copper mine in Luoyang nearby.

Zhao Hanzhang decided to fold the list and put it away, it is not cost-effective to go to Changning for this matter, or to mention it again when he sees him at the palace banquet on Chinese New Year's Eve, let him prepare as soon as possible.

Zhao Hanzhang turned around to go back to approve the official documents, and caught a glimpse of more than a dozen neat official documents piled up on his desk, and his footsteps paused, "Have you finished approving it?" ”

Fu Tinghan nodded, "It's over." ”

Zhao Hanzhang was jealous, and immediately said, "Help me calculate something." ”

Fu Tinghan smiled and went over to help her calculate, and sure enough, with the various numbers he calculated, as well as the numbers from the newspapers in various places that he had written down in his head, it was easier for her to make judgments, and the speed of replying to official documents was faster.

Fu Tinghan saw that she had finished approving a copy, so he handed over a copy of it.

Zhao Hanzhang pushed the approved official document aside, took it and opened it, swept it through ten lines at a glance, but replied in a moment.

Fu Tinghan silently waited for the previous ink book to dry, closed it and folded it aside, and then sat opposite her to study the ink for her......

The two worked overtime until late at night, and waited for Zhao Hanzhang to finish processing all the official documents and letters before braving the cold to go back to the house.

Fu An and Tinghe both slept on the stove in the side room, and when they heard the sound of the door opening, the two of them immediately woke up and trotted out.

Zhao Hanzhang turned his head to look over, and when he saw that they had pressed out marks on their faces, he couldn't help laughing, and waved his hand: "You don't have to guard it in the future, go and rest early." ”

Fu An was going to light a lantern for them, Zhao Hanzhang had already raised his hand to take out a lantern from under the eaves and hand it to Fu Tinghan, Fu Tinghan hung it on a stick, Fu An recognized that it was placed in the study to use to point maps, and occasionally used to beat Zhao Erlang, his eyes widened.

Tinghe went back to the house and took out two cloaks.

Zhao Hanzhang took it and said to her: "You just woke up, pay attention to keeping warm, we have extinguished the fire in the study, and the fire in your side room will be extinguished before going back." ”

didn't let them escort them, Zhao Hanzhang and Fu Tinghan put on their cloaks and went back by themselves with lanterns.

The cold wind was blowing, Fu Tinghan couldn't help but hold her hand, and said to her: "The main courtyard is still far away from the study, and it should be arranged next to it at that time." ”

"Work and living places should be separated," Zhao Hanzhang said with a smile: "But now that it's cold, I really don't want to go more, go back and let Tinghe clean up the side room of the main courtyard to make a small study, and you can add it in the small study in the future." ”

Zhao Hanzhang didn't know how other officials celebrated the New Year, anyway, she still had official documents and letters to approve every day when she was waiting for the New Year.

But not all official documents and letters will be replied to, such as letters and official documents proposing to worship the heavens in the imperial court, which she temporarily put aside.

What kind of sacrifice, the little emperor is now not in power, and he has no money, I don't know that the altar was burned by the fire, and he has to repair the platform if he wants to sacrifice to the sky?

If she had the money to repair the rooftop, would she have no money to repair the stargazing platform?

(End of chapter)