Otaku Engineer in Great Tang Dynasty Chapter 938: Calendar, dig people!

Yellow crown?

When Li Zexuan heard the name, he was familiar with it. After a while, he remembered that when the entrance exam of Yanhuang Academy was unveiled, Li Zexuan had investigated the family situation of the top students. Li Yanshen As the freshman ranked second, Li Zexuan certainly has information about him on his desk, so of course Li Zexuan knows something about Li Chunfeng.

Li Chunfeng, the Taoist name Huang Guanzi, in the first year of Zhenguan, put forward 18 opinions on "Wuyin Yuanli" written by Taoist priest Waisanqi Lang Fu Renjun. Li Er rewarded his talents, adopted 7 opinions, and granted him to Li Chunfeng. Lang, worked in Taishi Bureau.

The current Li Chunfeng is just a hairy boy who just appeared in the court. Few people care about him, but Li Zexuan, who has traveled from modern times, knows what Li Chunfeng means. For this reason, he specially asked people to check the information of Yuan Tiangang!

Later, he learned that there was no such person as Yuan Tiangang in the court, so he stopped. In fact, Yuan Tiangang only began to enter the court in the fifth year of Zhenguan.

"It turned out to be Daochang Li, disrespectful and disrespectful~!"

Li Zexuan paid a courtesy to Li Chunfeng, politely.

Li Chunfeng looked at Li Zexuan seriously, which made Li Zexuan feel uncomfortable. He always felt that Li Chunfeng’s gaze seemed to have a penetrating power to see through everything. Under this gaze, it seemed that all secrets were impossible. With the same evasive form, his heart was stunned, and he hurriedly transported the "Tai Xuan Jing", full of mental power, and focused on guard.

I saw Li Chunfeng’s face suddenly paled, “I was rude and rude. I just saw Master Hou’s face surprised by the poor Dao, and for a while, I could not help but look at it more. Blame~!"

Li Zexuan smiled and said: "It's okay, you and I belong to the same line of Taoism. How can you blame it? I heard that Dao is good at calendar, astronomy, and arithmetic. If he has the opportunity to ask for advice and advice, Don’t hide your clumsiness~!"

Li Chun's eyes flickered, and he said, "Master Hou is absurd! Master Hou has been famous since his childhood teacher. How can he be compared with Master Hou in this little trick? Today is here, I want to use Yanhuang Academy. The telescope confirms some conjectures in the past, and I hope Master Hou will give it convenience~!"

Verify some conjectures? It is probably related to the calendar, right?

Li Zexuan thought in his heart, and at the same time he promised: "Although the chief dao uses it, the gate of the college will be open to the chief at any time in the future, and the chief can come anytime with this telescope!"

Li Chunfeng looked happy and said: "Hou Ye is serious about this?"

Li Zexuan smiled and said: "Naturally take it seriously! If Benhou expected it to be true, the Taoist chief probably wanted to use a telescope to derive the calendar, right? Since ancient times, the calendar has been extremely important to the people’s agricultural affairs. If this telescope can help Master Dao, that is also the blessing of Yanhuang Academy and Benhou?"

Li Chunfeng looked down and bowed sincerely and said: "Master Hou understands the righteousness and admiration of the poor, the people of the world will certainly appreciate your kindness from Master Hou!"

Li Zexuan's expectation is not bad. The main purpose of his coming today is to see if the astronomical telescope of Yanhuang Academy can help him improve the accuracy of calendar deduction.

The so-called calendar is simply the law of measuring long time intervals, judging climate changes, and predicting the coming of seasons based on the natural laws of astronomical changes. The calendar formulated according to the cycle of the moon phase change (namely the synodic month) is called the lunar calendar, and the calendar formulated based on the cycle of the earth's rotation around the sun (namely the return year) is called the solar calendar.

The ancient Chinese calendar used the year of return as the unit of the year and the unit of the synodic month as the month. It is a combined yin and yang calendar that takes into account both the solar calendar and the lunar calendar.

As soon as the rulers of the past dynasties came to power, they usually organize officials to overhaul the calendar, because the people's annual spring ploughing, autumn harvest and other agricultural activities are all based on the calendar. This shows the importance of the calendar to the country!

Many people who have understood the Chinese lunar calendar may sigh in their hearts, why is there such a precise prediction of agricultural events in the 24 solar terms for thousands of years in the lunar calendar? At the beginning of spring, we must start plowing the land to raise seedlings, weeding the wheat with rain, topdressing the wheat with Jingzhe, and the jointing of wheat at the vernal equinox, and so on! And during the Mid-Autumn Festival, I have never found that the moon is not round. After working for thousands of years, the creator of the calendar and the discoverer of the law can't help but admire the five bodies.

Compared with this, the Gregorian calendar commonly used by all countries in the modern world is simply weak!

In fact, the Chinese lunar calendar is based on the pure solar calendar "twenty-four solar terms" to determine the year, determine leap months and leap years, and determine the moon by lunar calendar. The twenty-four solar terms are pure solar calendars, so the forecast of farming time is very accurate. Therefore, the Chinese lunar calendar is a lunar calendar with solar calendar correction cycles.

The Twenty-Four Solar Terms is a pure solar calendar, and its cycle is the same as the earth’s revolution cycle. Observed from the earth, the moment when the sun passes the vernal equinox on the ecliptic, it is set as the beginning of a new year and the end of the old year. The ancient dynasty set up the Qin Tianjian to observe and calibrate each year to ensure accurate positioning of the vernal equinox and accurate farming time.

Li Zexuan felt that giving the telescope to Li Chunfeng was a gift to the hero. In this way, Li Chunfeng might be able to perfect the calendar. This is a major event that benefits the country and the people! And if Li Chunfeng discovers the eight planets of the solar system through a telescope and proposes a heliocentric theory or solar system theory, it can be regarded as a contribution to Datang's astronomical career~?

"Well, you Yonganhou~! I didn’t know what conspiracy you used to make Dr. Sun move to Yunshan. Now I want to use this telescope to dig my people~?"

The two of them had a happy conversation, and they had a posture of seeing each other late~IndoMTL.com~ But Li Er came from the side and didn't have a good air.

He is very accurate in his life. For Li Chunfeng, Li Er still holds great hopes.

"The minister is terrified, Li Chunfeng, the minister, will always be loyal to his Majesty and Datang~!"

Maybe Li Er is a joke, but Li Chunfeng has not been in contact with Li Er for a long time, and he doesn’t know much about Li Er’s personality. He listened to the words as a joke, and said quickly.

Li Zexuan didn't have any panic. He immediately heard that Lao Li was joking, and he reluctantly said: "Your Majesty, the minister wants to use the academy's technology to help Li Shilang improve the calendar. The ministers and others will work for your majesty. , Working for Datang and the people at the same time, how can we talk about digging people?"

Although Li Zexuan does have that idea in his heart, it is impossible for him to say it!

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First!

(End of this chapter)