Gongsun Lian smiled when he heard this, "Now that all households have started to use numbers, there is a new type of bookkeeping, which is indeed clearer and easier than before." ”

Li Xiaoyue nodded, "Many people have always rejected Fanbang's things, but in fact, there are people outside the world, and there are heavens outside the sky." ”

"Fanbang also has culture and a good side. We can't look above the top, we have to take the essence of those things that come from outside, remove the dross, and make use of them. ”

Hearing Li Xiaoyue's words, Gongsun Lian smiled, "When the matter on my side is finished and the border is settled, I will revise it with you." ”

Li Xiaoyue nodded hurriedly, Gongsun Lian's knowledge of Dayan was more sophisticated and thorough.

With him by his side, he will definitely be able to make it better.

"Good. Then I'll wait for you to come back! First of all, I can think of what I can think of, and I can make it up. ”

"When the time comes, if you find something missing, you can add it for me. If there is a mistake, you can correct it for me. ”

"When we finish compiling these, I will teach them these arithmetic in the school, these things are more useful to them than the Four Books and Five Classics."

Gongsun Lian thought so.

After eating here, they went together to greet Li Laohan.

Li Laohan and Brother Li liked their sister's gift very much.

This daughter is still good, not only for Gongsun Lian, but also for her father and eldest brother.

Others are greedy and want it too.

Li Xiaoyue smiled, "The lenses are not easy to grind now, and when there are more lenses, I will do more." ”

"Okay, such a transparent water jade is already rare. Don't embarrass Xiaoyue. Of course, Li Laohan will not let his daughter complain and relieve his daughter.

Li Xiaoyue smiled, "If there are good things in the future, I will definitely get more, everyone has them." ”

Gongsun Lian set off, and Li Xiaoyue and Mrs. Gongsun came to see him off.

Gongsun Lian said softly, "Xiaoyue, please." ”

"Don't worry, Changhuan and I will take care of the old lady. But you and your eldest brother should be careful along the way. ”

"Good!" Gongsun Lian should get off, get on the horse, don't look back, and leave quickly.

He is afraid of turning back, and he will be reluctant.

Because of the need for a quick decision, Gongsun Lian did not take a carriage, but rode a horse.

Mrs. Gongsun looked at her son's back like this, just like before, watching her son leave, and after she couldn't see her son's back, she began to look forward to her son's return day by day.

Seeing that the old lady did not move for a long time, Li Xiaoyue was on the side.

"Satsuki, let's go back. I want to eat leek dumplings at noon, okay? It took a while for the old lady Gongsun to smile and say, becoming the kind and smiling old lady again.

Li Xiaoyue was stunned for a moment, but when she saw the old lady Gongsun laughing, she also laughed, "Okay, I'll give you a bag right away." ”

Actually, it's not a leek, it's a leek.

In winter, except for radish and cabbage, there seems to be no decent vegetables.

Leeks are available, but they don't grow at all in winter.

So Li Xiaoyue made leeks yellow in the greenhouse, not to mention, it was really planted, and it tasted good.

Last time during the Chinese New Year, I sent some to the old lady, but I didn't expect her old man to like to eat.

"Old lady, go back with me, how about we make dumplings together?"

"Good! Do it yourself, it tastes better. "The old lady of Gongsun distracted her attention by doing things, so that she did not want to miss her son who traveled far away.

Li Laohan didn't have such a big reaction, firstly, there were many sons, and secondly, things were not difficult.

As long as you are careful and deployed, you should be able to come back safely.

Pull out those fine works, and the Great Strict may settle down for some time.

Let's say that Li Changfu took the telescope and came to the camp in Zhenxiguan.

Huo Yingjie was handling official business, and when he heard the guards around him say that Li Changfu was here, he thought something was wrong at home, "Hurry up, please." ”

Li Changfu, led by the guards, walked in, "See General Huo." ”

"Changfu, why are you here?" Huo Yingjie hurriedly asked, but seeing that Li Changfu was not in a hurry or slow, he was a little relieved.

Li Changfu took out the telescope in his arms and handed it to Huo Yingjie, "General Huo, this is a telescope made by my mother, you can see far away." ”

Hearing this, Huo Yingjie was surprised, "Then I have to take a good look." With that, he put it on his eye and closed his other eye.

Huo Yingjie looked at it and actually saw soldiers from a long distance, with a pockmark on his face.

He took great strides himself, fifty paces, and he could see clearly.

He adjusted the length and looked farther and farther, which made Huo Yingjie very excited.

"With this thing, it's like having an extra pair of eyes!"

"If the scout takes this thing to the front to find out the news, not only can he hide himself better, but he can also see more clearly and more."

Li Changfu nodded, "Yes, General Huo." There's also a magnifying glass here, and I can do an experiment for you! ”

Huo Yingjie was very interested, and followed him outside.

Li Changfu found a rag, then took out a magnifying glass and pointed it at the sun, and the sunlight gathered into a small dot and fell on the cloth.

It's noon, the warmest time of the day.

Because it was the first month of the year, the temperature was still very low, so it took a little longer to light the rags.

A quarter of an hour later, there was a black spot on the fabric, which grew larger and larger, and smoke was burning.

Finally caught fire.

Huo Yingjie was dumbfounded, "Oh my God, how could there be such a magical thing!" ”

"If you don't have a fire fold, or if the fire fold is wet, and you have this thing on your body, you can make fire as long as there is the sun!"

Li Changfu nodded, "Yes, there is another function, which can enlarge the words on the book." ”

Hearing this, Huo Yingjie hurriedly took it over and tried it.

"Changfu, you go back and tell Mrs. Li to make me a magnifying glass and a telescope. No matter how much it costs, I buy it, and it just so happens that my father's birthday is approaching, and as a gift, he will be happy. ”

Li Changfu nodded, "I'll tell my mother when I go back, after all, there are not many such translucent water jades, and they have to be polished, which takes time." ”

"The general's birthday is two months away, even if the process is complicated, it will be in time."

Huo Yingjie thanked, "Then please!" ”

Li Changfu came out of the barracks and rode back to Lanshan County.

He went to the honeycomb coal shop to have a look, and then went to find Li Baqiang.

Give Li Baqiang a telescope and a magnifying glass.

Li Baqiang can't put it down, like them, to collect all kinds of information, to perform all kinds of tasks, need all kinds of tools.

These things that my aunt gave him can come in handy.

"Changfu, how much? I'll give it to you! ”

Li Changfu waved his hand, "You don't need to give money, this is my mother who personally asked me to send it to you!" ”

"You are doing things outside, running around, these things are in your hands, and they are more useful."

Hearing his cousin say this, Li Baqiang nodded, "Yes, this thing allows me to see far away, so that it is not easy to be detected when I spy on some people." ”

"Recently, my grandfather made me keep an eye on Liufu, which really made me feel a lot of trouble. After all, Liu Zicheng is a general, and there are many guards in the mansion, so it is easy to be found if he gets too close. ”