Otaku Engineer in Great Tang Dynasty

Huang Guanzi?

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 Yan was the first freshman. Second, Li Zexuan's desk certainly has his related information, so of course Li Zexuan knows a little bit about Li Chunfeng.

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

The current Li Chunfeng is just a little boy who has just appeared in the court. Few people care about him, but Li Zexuan, who has traveled from modern times, knows what the three words Li Chunfeng mean. 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 returned a gift 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 could not be hidden. , His heart was stunned, and he hurriedly transported the "Tai Xuan Jing", full of mental strength, and focused on guard.

Seeing Li Chunfeng's face suddenly paled, "I'm rude and rude. I just saw Hou Ye's face surprised by Pang Dao, and suddenly he has committed an old problem again. I can't help but look at it more. I hope Hou Ye will not blame it~! "

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 be a good student in the future, he will be a good student for advice and advice. Don’t hide your clumsiness~!"

Li Chunfeng's eyes flashed, and he said, "Master Hou is ridiculous! Master Hou has been famous since he was a child teacher. How can he be compared with Master Hou in this little trick! Today I am here to use the telescope of Yanhuang Academy to confirm it. Some conjectures in the past, I hope Lord Hou will give you convenience~!"

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

Li Zexuan thought in his heart, and at the same time he promised: "Although Dao Master uses it, the gate of the academy will be open to Dao Master at any time in the future. Dao Master wants to use this telescope to come at any time!"

Li Chunfeng smiled and said, "Hou Ye is really serious?"

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 in agriculture. If this telescope can help the Taoist chief , Is that also the blessing of Yanhuang Academy and Benhou?"

Li Chunfeng looked down and bowed down 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 roundness (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 return year as the year unit and the synodic month as the month unit. 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 twenty-four 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, etc.! And during the Mid-Autumn Festival, I have never found that the moon is not round. After working for a thousand years, the creator of the calendar and the discoverer of the law can't help but admire the five bodies.

In contrast, the Gregorian calendar commonly used by all countries in the modern world is simply weak!

In fact, the Chinese lunar calendar determines the year based on the "twenty-four solar terms" of the pure solar calendar, determines leap months and leap years, and determines the moon based on the 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.

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 just a gift of the sword 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 discovered the eight planets of the solar system through a telescope, and proposed a heliocentric theory or solar system theory, it would be considered a contribution to Datang's astronomy career, right?

"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 were chatting together, and they were in a posture of meeting each other late~www.ltnovel.com~ but Li Er came from the side and didn't have a good air.

He is very accurate in his life, and Li Er still has great hopes for Li Chunfeng.

"The minister is frightened, 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 character. As the saying goes, he doesn’t want to take Li Er’s words as a companion. Hearing a joke, he 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. When Datang works, he works for the people at the same time, so how about digging others?"

This, although Li Zexuan did have that idea in his heart, it was impossible for him to say it!

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First!

(End of this chapter)