Luo Xiahong was leaning against the window and looking at the starry sky, originally he actually had no intention of coming to Chang'an, but he really couldn't stand Zhuo Junchen's soft grinding and hard bubbles. Along the way, he also heard Zhuo Junchen tell a lot of little-known deeds about Huo Guang, and he also had some expectations for this young general. However, he didn't pay much attention to Huo Guang today, and he had the idea of returning to Langzhong again, and he had already decided to go back to Langzhong in two days, if Huo Guang didn't summon him, he would leave and go back to his hometown.

"The junior Huo Guang visited Mr. Changgong, there was a lot of neglect today, and I hope Mr. will forgive his sins!" Huo Guang suddenly bowed to Luo Xia Hong outside the window, and his body almost bowed at a right angle.

"This ...... General, please come in....... You're a villain! Luo Xiahong was taken aback by Huo Guang's sudden move, and was even more flattered to hear Huo Guang report his name and claim to be a junior.

When the court can praise the nameless and powerful generals, anyone will be flattered if they salute themselves like this.

Luo Hong walked quickly to the door, opened the door and welcomed Huo Guang into the house. At this time, he also found that Huo Guang didn't even wear shoes. At this time, Zhuo Junchen also hurried over, still carrying Huo Guang's shoes in his hand.

"This ......" Luo Hong looked at Huo Guang and Zhuo Junchen in confusion.

"What a faux pas.... When I heard about Mr. Changgong's deeds, I longed for it in my heart, so I hurried over..... Look at this ......" Huo Guang took the shoes in Zhuo Junchen's hand, said with an embarrassed expression, and at the same time stood outside the door and put the shoes on his feet indiscriminately.

"Haha...... The name of the eldest prince can make the general drop his boots and greet him, and this matter is another eternal story! Zhuo Junchen said with a smile on the side. For his old friend, who is like a celestial man, he is also happy to be so valued by Huo Guang.

"I heard that Mr. can increase the rice yield by two percent, if this is the case, it is really a blessing for the Han and the people!" After Huo Guang entered the house, he couldn't wait to speak.

Huo Guang is not familiar with the name Luo Hong, and he doesn't even have this person in his memory, but today Zhuo Junchen said two things about Luo Xia Hong, which is more exciting than letting Huo Guang see a celebrity who has been famous for many years, and Huo Guang has never been so excited for many years.

"It's not the work of old decay, but the disadvantage of the calendar. The old decay only allows the farmers to sow seeds at a suitable time, and if the general wants to spread the law, he only needs to rewrite the calendar! Luo Xia Hong smiled and said with some understatement.

"Reschedule the calendar......" Huo Guang repeated in a low voice.

"What do you mean by that?" Huo Guang continued to ask, perhaps in terms of overall foresight, Huo Guang is unmatched in this era, but in some professional fields, Huo Guang is also a layman.

Luo Hong twisted his beard and said slowly: "When the calendar used today is still the pre-Qin calendar, in fact, there are serious deviations and omissions, such as today's elephant and the calendar can no longer correspond, in fact, it is also urgent to modify the calendar!" ”

Huo Guang nodded slightly when he heard this, he basically understood the meaning of Luo Hong's words. Today's celestial phenomena and the celestial phenomena calculated by the calendar can no longer match, in the words of this era, it is the chaos of the heavens, it may feel a little mysterious, in fact, in this era when the imperial power is ordered by the sky, the chaos of the heavens is indeed a major thing, and it will even directly affect the rule.

At that time, Zhou Tianzi was weak, and the Zhou family was unable to maintain astronomical institutions, so the Warring States Zhuxiong began to formulate their own calendars, and various countries set up private astronomical institutions. Although the Han Dynasty did not yet have the blatant private calendar and stargazing of the princes, many people have realized that the calendar does not match the celestial phenomena.

"It was my negligence, and Mr. Tomorrow will go with me to Changle Palace to meet Your Majesty. Such a major event as rebuilding the calendar, even His Royal Highness Taisun and I cannot make our own decisions. It's just that the younger generation still has something unclear, this calendar is inconsistent with the celestial phenomena, how can it be unfavorable to agriculture? Huo Guang said to Luo Xiahong very solemnly, and when he calmed down, he found that the weight of the calendar is also the foundation of the country in this era, and these are all things that he neglected before.

In the past, Huo Guang only led the army to fight, or governed a place, and many things did not need to be considered, but now that he has entered Chang'an, he has found that in fact, there are too many places to consider to govern this huge country, and those so-called later generations of experience may not be useful in this era.

Because the people sow and harvest according to the calendar, but now the calendar is biased, in fact, the time of sowing is just missed the best time, and the difference between the two days affects the change of climate and rain in the following months. Naturally, a decrease in food production is inevitable! "Luo Xia Hong can be called the all-rounder of this era, and he is the kind of all-rounder who is proficient in everything. Through years of observation, he found that if crops miss the best time to plant, the yield will naturally decrease, or the growth cycle will be too long, or the grains will start to wilt before they are full.

"I see..... Huo Guang suddenly realized, he knew that the planting time of various crops in agriculture in later generations was very strict. And if the calendar itself is wrong, the initial deviation of one or two days may not have any effect, but the longer the time passes, the greater the deviation, the greater the impact on the growth of crops.

Originally, the farming population of Dahan is getting smaller and smaller, and if you add the reduction in grain production due to the deviation of the calendar, it is no wonder that Dahan is not as good as a year after year.

"I heard that Mr. Changgong also made two things of armillary sphere, I don't know if he has ever brought it to Chang'an? The younger generation really wants to open their eyes! "Huo Guang only knew that there was a kind of thing called the armillary sphere in ancient times, but he didn't know that this thing had appeared in the time of Emperor Wu of the Han Dynasty, or it was made by a person who was not famous.

"In fact, the armillary sphere and the armillary sphere can be one, and it can be called an armillary sphere. However, this thing is still in Lang, but it has disappointed the general! Luo Xia Hong also said quite complacently, the armillary sphere is the crystallization of his life's painstaking efforts, and it is also an artifact that he made with the armillary doctrine and completely denied the doctrine of covering the sky, and in his heart this is a real holy artifact.

"By the way, can this armillary sphere calculate when there is a lunar eclipse? When is the next time? Huo Guang suddenly asked inexplicably.

Huo Guang's question, whether it was Luo Xiahong or Zhuo Junchen, was slightly stunned, because the lunar eclipse was also considered a natural disaster warning during this period, regarded as a bad omen.

"What? The general seems to be looking forward to the eclipse? Isn't the general afraid that this is a bad omen? Luo Xiahong looked at Huo Guang and asked with a serious expression for the first time.

In fact, the teacher once said that the stars in the sky go their own way, and the cycle has already been decided, not because of the changes in the world. The younger generation thought of the teacher for a while, and was a little curious! Huo Guang has long been familiar with lying, especially when it comes to this mysterious teacher.

"Haha..... The general is really a very person, and the old man occasionally had an experience a few years ago, thinking that the eclipse of the sun and the moon was just a normal celestial change, and the cycle was like four o'clock, which was really a normal celestial phenomenon. Respect the teacher is knowledgeable, has already peeked into the truth of heaven and earth, and only hates that he is born at the wrong time, and it is a pity in life that he cannot ask his predecessors in person in this life! Luo Xiahong suddenly became interested, and he had a feeling of hating Huo Guangda for seeing each other. Then I thought of the miraculous master who had already been passed down by the people of the world, and I regretted it in my heart.

"Actually..... The old man once calculated that if there was a lunar eclipse this year, it should be a few months away. It's just that the exact date and hour have been forgotten. Luo Xiahong didn't forget Huo Guang's question, and said very normally. When it comes to these professional fields, Luo Hong looks like a scientific madman.

"Sir, do you mean just a few months away? Can it even be accurate to the specific time? Huo Guang asked eagerly, the look of anticipation on his face became more and more obvious.

"That's true, the old man dared to ask, I don't know why the general cares so much about this?" Luo Hong's expression was straight, and he could feel that Huo Guang cared so much about the lunar eclipse, definitely not just curiosity and interest, but seemed to be related to an earth-shattering event.

Huo Guang heard Luo Xiahong give a clear answer, his face was already overjoyed, and then he stood up solemnly and bowed to Luoxiahong.

"This matter is very important, please forgive me for not being able to tell the details, but if Mr. can really calculate the time of the next lunar eclipse, this merit can be called the first merit in pacifying the Huns in ancient and modern times, especially above my uncle and brother." Huo Guang's expression was serious, at this moment he was not talking about any astronomical calendar, let alone any hobbies, but a real military event, and he was talking about a major event related to the fortunes and turning points of the Han Dynasty as a general.

"This ......" Luo Hong was a little overwhelmed, he never thought that his life's work would be linked to the fate of this country. The first merit of pacifying the Xiongnu in ancient and modern times, this name is too heavy, and its merits are even more than Wei Qing and Huo Quai. Luo Xia Hong didn't understand, and he didn't dare to think about it, but he could be sure that Huo Guang, the most powerful general in the Han Dynasty, was not joking with him!

Luo Xia Hong couldn't speak for a long time, and in his professional field, he could say a word very confidently. But Huo Guang asked so solemnly that Luo Xiahong didn't dare to promise lightly.

"I need to make a model out of bamboo strips first, and then I need the best blacksmith to make the parts of the armillary sphere, and I need a hundred craftsmen who can listen to my instructions to mix, if the general needs the most accurate time, and a wide area, this armillary sphere will be no less than three zhang high and more than ten zhang in circumference." After a long time, he said solemnly, he put forward many requirements, as if he was going to build an instrument that surpassed the technology of this era.

"Okay, I will meet all your requests, and I will also send the best Mo disciples to assist you. In addition, I will allocate a vacant lot next to the Sifang Pavilion for you, I don't know how long it will take to complete the construction? Huo Guang agreed without hesitation.

"If there are disciples of the Mo family to help, it will naturally be great. As long as everything goes well, it can be completed in the rest of the month. Luo Xiahong regained some self-confidence, and he already knew the news of the birth of the Mo family, and if he wanted to say that the best craftsman, it was naturally none other than the disciples of the Mo family.

"In that case, let's wait for Mr. Changgong's good news. The matter of the calendar can still be postponed, please be sure to pay attention to it! Huo Guang bowed solemnly again, in his opinion, nothing is as important as calculating the lunar eclipse, and even the reformulation of the calendar needs to be postponed.

"Naturally, I won't disappoint the general, in fact..... This time, Brother Junchen and I also brought something here, which may be able to break the ironclad cavalry ...... for the general" Luo Hong bowed and responded, but the last sentence shocked Huo Guang fiercely!