"Waiting for the edict, is it right?"

Technical talent is to serve people who are better than his skills, and when Zhao Hao showed his real skills, Bei Jianzheng naturally changed his name.

"Uh, that's right." Zhao Hao's mouth was a little bitter.

Uncle, don't you want to be so spiritual!

The apprentices are more perceptive than my son, why are you so powerful?

But he forgot that he was the director of the National Astronomical Observatory.

So every six thousand five hundred and eighty-five and one-third of a day, the eclipse of the previous week will reappear. Therefore, as long as it is known that there has been a solar eclipse on a certain day in the past, after such a cycle, almost the same solar eclipse will occur again; In the same way, pushing forward a cycle, there is bound to be a solar eclipse. ”

"But because there are one-third fractions of days in each cycle, this will cause the site where the eclipse is seen to move a third of the earth to the west. Therefore, if we want to see the same solar eclipse happen again within the territory of the Ming Dynasty, we have to wait for three cycles, that is, 19,756 days. ”

After a pause, Zhao Hao brazenly declared: "If you want to narrow down the scope to the same province again, you need to go through a big cycle, that is, six thousand four hundred and forty-four months, which is about five hundred and twenty-one years and four months. If you want to be 100% sure of the same city, you have to go through 22,325 months, that is, 1,805 years...... The last one, of course, is the obsessive-compulsive disorder of scientists, which can be ignored. ”

Then he looked at Bei Jian Zheng, who was making a quick record, and said, "How about it, this method is simple, right?" Don't worry about it in the future, you can't predict it, right? ”

At this time, even the ministers couldn't help but turn their heads and ears.

"Does he mean that every five hundred and twenty-one years, the eclipse will return to the same place?"

"Is it that simple?"

"It's just a matter of verifying, and it's easy to verify."

At this time, the problem was finally reduced to the knowledge of all the ministers, so all the high-ranking officials who were stunned became active.

Emperor Longqing also said with great interest: "Bei Jianzheng, you bring the solar eclipse records of the Northern Song Dynasty and this dynasty." ”

In the official history books, special attention is paid to the record of solar eclipses, and no matter the change of dynasties, no solar eclipse will be missed.

Fortunately, Bei Jian Zheng was fully prepared today and brought all the information he could bring.

Soon, from the dossier, the records of the solar eclipse of the Guo Dynasty and the Northern Song Dynasty were found.

Then he and his deputy each copied it.

~~

In the Wenhua Palace, the ministers stretched their necks and watched the two of them copy the eclipse record.

Emperor Longqing couldn't hold it back, so he simply got up and walked to the table to check.

Hum also wants to figure out, is that what is going on?

But it doesn't seem to be a bit of a problem.

Forget it, let's watch quietly for a while, and then go back and sit down.

After making tea, Pei Jian Zheng and the two of them copied the eclipse dates of the two dynasties on two large pieces of paper.

"Let's do the math, is what Zhao Zhizhao said right?" Emperor Longqing, who had already sat back on the dragon chair, commanded as if nothing had happened.

"Yes, Your Majesty." Bei Jian was wiping his sweat, pointing to a solar eclipse record casually:

"Let's take this solar eclipse in July of the 40th year of Jiajing, and I won't see you in Nanjing this time."

After a pause, he put pen to paper and calculated: "If you push forward five hundred and twenty-one years and four months, it will be ......."

After counting for a long time, Bei Jianzheng finally reported a date and said: "It is March of the first year of Kangding in the Northern Song Dynasty." ”

Since solar eclipses only occur on the New Moon, it is enough to count only the months.

I saw that the deputy of the Qin Tianjian quickly browsed to the line in the first year of Kangding, and opened his mouth wide as if he saw a ghost.

Cheng Guogong on the side really couldn't stand this grind, snatched the paper from his hand, and read aloud:

"On March of the first year of Kangding, the solar eclipse ...... Jiangning"

The hall was full of silence, and the emperor's ministers who were originally still with different expressions all opened their mouths in unison.

Only Cheng Guogong was still muttering with a little regret: "It's a little interesting, but the place is not right." ”

After speaking, he found that the people around him opened their mouths one by one, as if they had been immobilized.

Zhao Hao smiled and said: "Guogong, Nanjing was called Jiangning in the Song Dynasty. ”

"Oh, really?" Cheng Guogong laughed embarrassedly: "Useless knowledge has increased again. ”

But I heard Xu Ge Lao say coldly: "Check one more!" ”

"Yes, yes, check one more!" Xiao Ge Lao couldn't hold it anymore, walked straight to the table, flipped it with his own hands and said, "Check this." ”

"Yes!" Bei Peijia hurriedly found another date and said: "In July of the eighth year of Hongwu, a solar eclipse can be seen in Beijing. ”

Bei Jian Zheng hurriedly picked up the pen and calculated, wiped his sweat with his sleeve for a while, and said: "It was the eighth year of the Tang Dynasty. ”

"Go to the Tang Dynasty." Xu Fan snorted coldly, and Deputy Qin Tianjian hurriedly went out to rummage through the cabinets.

Taking advantage of this, Xu Fan asked Bei Peijia to calculate the Shanxi solar eclipse in July of the twenty-second year of Jiajing.

After calculation, the corresponding date is March of the fourth year of Tianxi in the Northern Song Dynasty......

Supervisor Bei Zheng found the record of that year, and he shouted excitedly despite the face of the old man Xiaoge who wanted to eat people:

"March of the fourth year of Tianxi, Taiyuan solar eclipse!"

"......Boom," all the ministers were excited at this time.

The so-called solitary certificate does not stand, and the double certificate is not false.

"It seems that there is really a pattern......" Emperor Longqing smiled from ear to ear, and when he saw Xu Ge Lao's iron-blue face, he quickly suppressed his laughter again.

At this time, the deputy prisoner came back with the almanac, and when he entered the door, he said loudly: "March of the eighth year of Dazhong, the solar eclipse in Youzhou!" ”

After speaking, he and Bei Jianzheng couldn't care where they were, so they couldn't help themselves and wept relatively closely.

It turned out that predicting a solar eclipse was so simple, but we were so sad that we didn't even think of it......

"In fact, more accurate forecasting requires more complex data and calculations, which I am interested in teaching you later."

Zhao Hao said softly to the two Qintianjian officials who were crying like children.

Well, this is a tribute from science to the technical talents of the Ming Dynasty.

"Thank you, sir." The deputy supervisor hurriedly gave a deep salute.

"Thank you, teacher, for ignoring past suspicions." That Bei Jian Zheng was really in front of the emperor, and directly kowtowed to Zhao Hao four times.

"Haha, okay, get up."

Zhao Hao was in a beautiful mood, so he bowed to the pale-faced Xu Ge Lao and said:

"In the previous hot air balloon experiment, I accidentally collided with Motosuke and almost detained the old man inside. In order to express my apologies to Motosuke, I have named this cycle 'Huating Cycle'! ”

Xu Jie secretly rolled his eyes, and said in his heart I thank you, I am not rare.

But the old man had the problem of thinking carefully before opening his mouth, so he heard Emperor Longqing laugh first:

"Well, that's a good story."

"Uh......" At this time, Xu Ge Lao didn't accept it, and he had to accept it.

The officials present also offered rainbow farts one after another, but they couldn't help muttering in their hearts, why do they always feel that the old man has been tricked?

"Please follow Confucius's example and punish the young and upright, and cut this fang to correct the hearing!"

In the midst of a harmonious atmosphere, he suddenly heard a murderous roar, which startled the emperor and all the ministers.

ps. The second update, ask for a monthly pass recommendation ticket~~