Royal road

Since ancient times, astronomical astrology has been valued by the world, especially the eclipse of the sun and the moon.Just because the rules of its operation are related to the two most critical stars, the sun and the moon, there is a saying that "the experience of the calendar is in the eclipse".That is, the calculation of solar and lunar eclipses is used to verify the accuracy of the calendar.

Li Xin is not an astronomer, but trigonometry itself is closely related to astronomy. In the calendar, the method of using different shadow lengths of poles to determine seasons and seasons has formed a cotangent table.After being obsessed with trigonometric functions, he gradually became interested in the study of the calendar and the proportion of the sun's light and shadow, and he also studied the calculation of solar eclipses along the way.

For him, this is just a small math problem.But for Ge Hong, it is a philosophical and even a theological problem.Although he is keen on the Dao, Ge Hong is still a Confucian after all, and the interaction between heaven and man in Confucian theory is the interaction between all things in nature and the moral issues of the king.Only because people are not virtuous will cause natural vision.Solar eclipses are just one of those serious manifestations.

A mathematician who deduces the time of the solar eclipse through checking calculations, and laughs at the error of the previous calendar; meets a philosopher who believes in the concept of divine punishment, solar eclipses are related to calendar inference, but will disappear or appear due to the virtue of the emperor.The so-called "discussion" is bound to not look good.

Li Xin's face became even more stinky: "There is such a thing. I told him that the eclipse limit of the solar eclipse was wrong, and it might be because of the moon parallax. He doesn't know the method of function at all. You messed around, but you couldn't argue with me in the end, and you dared to throw your sleeves away! How can the food limit be counted as [-] points? It's stupid!"

Liang Feng couldn't understand Li Xin's food limit and parallax.But he should be clear that Li Xin might have figured out a new algorithm for calculating the solar eclipse, turned his head and tortured Ge Hong, and let that young man with a mouthful gourd mention him, with a look of disgust on his face .

Now is not the time to help them build a good relationship.Liang Feng hurriedly asked: "Then next year, will there be a solar eclipse? About when?"

"Yes! Not only yes, but three more times!" Li Xin snorted, "The earliest time is the first day of the first lunar month."

The so-called "solar eclipse is on the new moon, and the lunar eclipse is on the horizon" means that the solar eclipse only occurs on the first day of the lunar calendar, that is, the first day of the new year.The lunar eclipse only occurs on the last day of the lunar calendar, which is the fifteenth day.The first day of the first lunar month is the first day of the new year, the day of Zhengdan!

Hearing this date, Liang Feng couldn't help but secretly said, God help me!It is now November, and there are not many days left before Zhengdan.On the other hand, the Huns, no matter what, would not send troops to attack Shangdang before Zhengdan.In fact, just after the big defeat, it will take time to prepare food and troops, and the chances of restarting the war in these two months are really not high.

What if you do something while the eclipse is happening?With a gleam in his eyes, Liang Feng asked, "I don't know if Zi Le can calculate the exact time of the solar eclipse?"

Three solar eclipses a year, no matter how you say it, is a shocking event, and it is far from the calendar calculation.Li Xin was ready to have a fight with Liang Feng, but unexpectedly, the lord had no intention of doubting it, instead happily asked about the time.

A punch hit the cotton, which made the stunned young man a little bit at a loss.Li Xin coughed dryly: "This, I'm afraid it's not easy to calculate..."

After all, today's astronomy is not well-developed, and it is already extremely remarkable to be able to release the date.When it comes to specific times, even if Tai Shi, who is in charge of astronomy and calendar, comes, I'm afraid he can't tell why.

However, Liang Feng didn't care about this, he bowed to Li Xin: "This matter is related to the safety of Shangdang, please Zi Le give it a try!"

Although Li Xin is dedicated to learning, she doesn't care about things outside the window at all.But at least he still has a senior brother who has been dragged to develop the Thunderbolt Cannon these days, and he has also heard a lot of horrible remarks from the Huns.This Shangdang, he stayed comfortably, and the "Nine Chapters of Arithmetic" annotated by the master has become the standard textbook of Chongwen Museum.No matter how unreasonable it is, he knows it's better to stay here. If calculating the solar eclipse will make Shangdang safer, then what's the point of calculating?

After hesitating for a moment, Li Xin scratched his messy bun: "Then I'll try it!"

With Li Xin's words, Liang Feng felt relieved, and immediately asked Yiyan to return the manuscript to the other party, and exited the small courtyard.

Standing still outside the courtyard, Yiyan frowned: "My lord, what does Tiangou's eclipse have to do with Shangdang?"

Although he couldn't understand Li Xin's frivolous appearance, after listening to the audience, Yiyan still understood that the only thing the lord cared about was the time of the solar eclipse.However, the sky dog ​​eats the sun, and others have no time to hide, so how can we keep Shangdang with this?

"One thing, you are not wrong." Liang Feng sighed, "Unless there is another great victory in Lucheng, the Huns will never retreat. If the Huns are allowed to invade, next year Shangdang will be a piece of scorched earth, even if they are taken in." If all the refugees are thrown into the war, it may not be possible to keep the whole territory."

Another point, Liang Feng didn't say it directly.Once defeated, the aura of Buddha on his body will be greatly reduced.Without this inspiring protective color, the impact on the morale of Shangdang soldiers and civilians is also extremely terrible.Let the foundation laid with great difficulty be burned to nothing by the flames of war.Liang Feng didn't want to experience such a thing again.

"Therefore, this opportunity is very important!" Liang Feng frowned after seeing the expression on the face of the person beside him, "If you fight in a solar eclipse, would you be afraid?"

Yiyan was silent for a moment, before he said: "If you are the lord, your subordinates will not be afraid."

The hidden meaning of these words is extremely simple, if it wasn't for him, Yiyan probably wouldn't have chosen this time to fight.This is the terrible impact of the celestial phenomenon mutation.Even if one is as bold and brave as Yi Yan, he still cannot completely eliminate the impact of the solar eclipse. Can others escape?

"Then use it well." Liang Feng walked towards the back hall, "This time, we have to set up a perfect plan!"

■

It has been a long time since the last time I came to the government office.Sitting at the guest table, Ge Hongduan felt a little uncontrollable confusion.The prefect Liang has always regarded him as a guest of honor, and if there is something to do, he will go to the Taoist temple in Xishan as soon as possible, there is no need for him to run errands himself.Such courteous treatment naturally benefited Ge Hong greatly.Coupled with those whimsical ideas that he had never seen before, he stayed in Shangdang, concentrating on alchemy and learning medicine.Even the flames of war from the Huns did not give him the slightest thought of leaving.

But today, the Fujun did not go to the Taoist temple, but asked someone to invite him to the Fuya.How could Ge Hong not be surprised by such a weird move?What's the matter, do you want to discuss it with him?

Footsteps sounded, and Liang Feng stepped into the main hall.Dressed in official uniform, with a solemn face.It has been a long time since I saw him dressed up like this, Ge Hong stood up in shock, "Master!"

Liang Feng rolled up his sleeves and was sitting on the main seat: "Ge Lang, please sit down."

Instead of calling him by his nickname, he was called "Ge Lang".Ge Hong's doubts were even worse, and he sat back: "Dare to ask the governor to invite Hong to come, but is there something wrong?"

"Yes. It's about the party." Liang Feng didn't explain, but asked instead, "Officer Ge Lang worshiped General Fubo, did you ever think about becoming an official?"

Ge Hong did not expect to hear such a question.He does have a general title.He made military achievements in fighting chaos in his hometown before, and the imperial court awarded him the title of General Fubo.However, because of the exclusion from his fellow countrymen and his own background, Ge Hong resolutely took the crown, left the army, and went to Luoyang to seek the way.Only then did I come to Shangdang.

He only briefly mentioned some of these things, but the other party never intended to invite him into the scene, and instead tried their best to help him study with concentration.If it were a different person, Ge Hong might feel that the other party underestimated his talent and only wanted to be good at Taoism.But prefect Liang is not such a person.On the contrary, this person appreciates all his research from the bottom of his heart.Not because of his origin, not because of his tongue, only because of his ideals.He sincerely wishes and is obsessed with the Dao.

Such a person is worthy of a confidant.Because of this, Ge Hong, who has always been reticent, gradually let go of his heart.Not only discussing Dan Dao and Gewu with the other party, but even occasionally talking about the ideas in his heart.The emergence of the Chongwen Museum and the Library allowed him to see another method of selecting materials.Regardless of external objects, only recognize talents and virtues.If it is popularized and used by the imperial court, can a southerner like him also be able to enter the court with dignity, instead of being rejected by the Zhongzheng system and ridiculed and belittled by the northerners who occupy the court?

However, Ge Hong never thought of recommending himself to Liang Feng, because he knew that what Fu Jun needed was his other talent.A talent that will not be valued by others, but can save countless lives.In order for more people to live and live in peace, he cares about whether he is an official or not.

But today, Fu Jun actually asked him that!

His heartbeat quickened, and Ge Hong opened his mouth: "I..."

Am I going to be an official?

The side that is clumsy with words has the upper hand.Ge Hong was speechless, not knowing how to answer.

Looking at the other party's expression, Liang Feng already knew the answer: "I would like to recommend Ge Lang as county magistrate, and settle down."

County magistrates are no more powerful than county officials.Although the official is not big, but if he is good, he is very likely to be promoted and transferred to other official positions.This is not like General Fubo, who is just a general with an empty rank, but a civil servant who can govern a place!Can he do it?In other words, is he willing to give up the Taoist temple where he can settle down and become a magistrate?

After pondering for a long time, Ge Hongcai said: "Your Majesty needs me to be an official?"

"Exactly." Facing Ge Hong's question, Liang Feng answered simply, "Shangdang is currently in a state of turmoil and lacks talents. Ge Lang and I have known each other for a long time, and I also know that Ge Lang is talented and courageous. Excellent. It is the best material I need most.”

In his words, there was no shyness at all, and he spoke sincerely and decisively.

Ge Hong couldn't help feeling hot in his chest: "What about the Taoist temple?"

Do you want to give up all the experiments that are going on now?

"If possible, I also hope that Ge Lang can hold several positions. However, there are priorities, so I can only choose one. But Taoism, I will stay for Ge Lang, and I will let those Taoist boys continue to study, never Be contemptuous." Liang Feng said simply.

Could there be a more sincere invitation than this?The enthusiasm in Ge Hong's chest became stronger.This Liangfu Lord is different from any official he has ever seen.He respects his hobbies, appreciates his talents, and even opens the door, allowing him to glimpse a road he has never seen before.Now, he is begging for it, and wants to make him an official.Can he refuse such a request?

Ge Hong asked himself, not to mention him, I am afraid others would not be able to refuse.

Taking a deep breath, Ge Hong said: "Thanks to Fujun for not giving up, Hong is willing to give it a try!"

Hearing Ge Hong's answer, Liang Feng didn't show a smile on his face, but was even more solemn: "Thanks to Ge Lang's approval, but this county is unusual. It's called Yangyi."

The author has something to say: "Book of Jin" Guangxi first year (306 years) Wuzishuo in the first month, Yiyoushuo in July, and eclipses.In November, Emperor Hui died.On Renwu Shuo in December, there will be an eclipse again.