Song Shixian led dozens of disciples and craftsmen, and Lin Jian asked Chen Enze to take care of everything, and temporarily put the observation of the solar eclipse on the participation of the Haidong camp army in the Goryeo civil war.

After the banquet, everyone else dispersed, but Chen Enze, the governor of Jeju, could not be sloppy, and asked his entourage, only to learn that Song Shixian and Zhao Shuhan went to Anlan Mountain.

Anlan Mountain is a single mountain in the north of Jeju City, no more than 40 zhang high, but when Lin Jian decided to let Song Shixian and Jiang Yue preside over the observation of the solar eclipse, he also took the first step to order the Jeju side to prepare and observe the solar eclipse when Song Shixian came.

Chen Enze has been in Haizhou for nearly a month, and Anlan Mountain in the north of the city is the address chosen by Zhou Guitang, the governor of Jeju, to build a stargazing platform.

After disembarking from the ship, Song Shixian dragged Chen Eun-taek to Jeju City, but his children and some craftsmen took several carts of observation instruments to the Anlan Mountain camp first.

Time is very tight, in addition to observing the solar eclipse, it is necessary to further observe celestial objects and stars to prove that "the stars are moving".

The so-called "star shifting" is actually a phenomenon more than 1,000 years ago, when the master of astronomical almanacs in Langzhong summed up the experience of astrology of his predecessors and realized that with the passage of time, the relative position of the stars on the turbid phenomenon (i.e., the star catalog) will change. Therefore, for thousands of years, literati have often used the phrase "stars shifting" to describe the changes in time and the passage of time.

In addition to the time factor, the position of the stars on the turbid catalog will actually change with the difference in the north-south direction. At present, the astrometry used by merchant ships in the Huaidong Sea to compare the north and south positions in the East China Sea and the South China Sea originated from this principle.

Song Shixian and his family came to Jeju this time, and by the way, they also wanted to observe whether the phenomenon of "star shifting" would occur at different observation points in the east-west direction.

Although the astronomical observation methods of the world were still quite rudimentary, and the observation of solar eclipses was only visual, the observation of the stars was able to produce a precise armillary armillary instrument that could accurately determine the calendar of the year several dynasties ago.

Jiang Yue is famous all over the world for presiding over the construction of the armillary sphere.

The armillary sphere he supervised can be said to be the culmination of the astronomical calendar and machinery manufacturing in history, the instrument is ten zhang high, consumes hundreds of thousands of catties of copper, and the star catalog and ring are all driven by flowing water - that is, Jiang Yue did not make all kinds of contributions to Huaidong in miscellaneous craftsmanship, and the fact that he supervised the armillary sphere alone is enough for him to stand at the peak of the master craftsmen of the world.

When Yanjing fell, there was an armillary sphere nearly ten stories high, so naturally there was no way to transfer it from Si Tianjian's stargazing platform and fall into the hands of Yan Hu.

However, Jiangning is the capital of Yuan Yue, and there are also six central temples such as nine temples, and Jiangning Si Tianjian is also operating normally.

Although Jiangning Si Tianjian does not have a large precision armillary planetarium like Yanjing, there are also two bronze instruments inherited from the previous dynasty, both of which are more than enough, and people can place them in them to watch the stars. Although Jiang Yue, Song Shixian and others intend to rebuild a super-large armillary sphere, they just don't have the energy; The two small instruments are not small enough to meet the needs of the current calendar.

This time, Song Shixian wanted to install one of them forever on Anlan Mountain in the north of Jeju City for observing the stars.

Chen Enze came to Anlan Mountain by carriage, and Song Shixian couldn't wait to ask his disciples to install the armillary sphere on the stargazing platform that had just laid the stone foundation overnight. The installation and alignment of the armillary sphere is far from being successful in one day, and he fell on the stone platform and set up a telescope first.

When Chen Enze climbed Anlan Mountain, Song Shixian was about to pull Zhao Shuhan to observe the starry sky through a telescope......

"Lord Governor, I'm here too." Zhao Shuhan watched Chen Enze come to the stage and bowed his respects.

Facing Zhao Shuhan's small wing posture, Chen Enze felt uncomfortable - Zhao Shuhan was invited by Lin Shu to teach miscellaneous studies in Jiangning Bamboo Hall, Chen Enze, Hu Qiaokou, Hu Qiaozhong, and Cao Ziang's son Cao Wenlong and others were still teenagers at the time, and they actually learned the basics of miscellaneous studies from Zhao Shuhan.

Before the estrangement due to political disagreement, Lin Jian regarded Zhao Shuhan as a friend, and Chen Enze and others didn't regard Zhao Shuhan as a teacher?

It's just that time has passed, and Chen Enze was only twenty-eight years old at the time, and he was already in the high position of the governor of Jeju; Zhao Shuhan came to Haizhou from self-exile, and only served as a counselor in the Jeju Governor's Office, standing with Chen Enze, and the difference between the top and bottom was reversed.

Chen Enze said with a smile: "I want Master Zhao to bring Master Song here," looked at the telescope that was more than one meter long on the stand, and said to Song Shixian, "I am in Haizhou, I heard that I am building a stargazing mirror, but I didn't expect it to be made......

"The double mirror is made by the old engineer Ge himself, and he can make two of them, and I took one to Jeju." Song Shixian said.

Chen Enze wanted to dispel the embarrassment between him and Zhao Shuhan, deliberately pointed to the long tube and asked, "Does Master Zhao know what this mirror is?" ”

"There is a magic mirror in Taixi Kingdom, which can make the distant mountains and rivers as close as in front of you," Zhao Shuhan is a pedantic celestial, although he has not yet stood in front of the mirror to take a closer look, but with his extraordinary insight, he said eloquently, "Suitable for the Song bachelor to say, this mirror can not see the sun, see the sun as burning, and it will be blind for a long time, and it is said that this thing is made of water jade, and white glass can also be made - the former Han medicine technique "Huainan Wanbi Shu" records: the method of cutting ice to make fire, and the previous dynasty "Su Shen Liangfang" also recorded the use of fire, cloud: 'Whoever takes fire, it is advisable to knock on the stone to make fire, or use water jade mirror in the sun, The "Book of Chen" of the previous dynasty recorded, "there is a Borneo country in the southeast sea, out of the fire Qi Zhu, the big one is like a chicken egg, the oblate round water jade, in the middle of the day to Ai Chengzhi, then get the fire, put the ant word above, regard it as a fly, also known as the morning glow big fire bead, after entering the city country, the nobles regard it as the treasure of the world'...... And all kinds of wonders that the world does not notice, Sejong Shi Jinshi Zhao Youqin in his "New Book of Leather Elephants", called it "Warm Reflection and Gathering". And the Book of Mozi also says, "The man of light is like a sunny" is also ......"

Zhao Shuhan's words not only moved Chen Enze, but Song Shixian also bowed down for a long time and said: "The people in Jiangning said that I stole Brother Zhao's bachelor's position, and I was quite unconvinced; Today, when I heard Brother Zhao's words, I was convinced, and I returned to Jiangning, so I resigned from the position of a scholar to Chongguo Gong, so that Brother Zhao would live in the ......."

Song Shixian's words were completely the words of scholars who did not consider political opinions, and Chen Enze didn't care about him, but Zhao Shuhan's words did explain the principle of optics thoroughly.

"The man of the light is as straight as an arrow"; Cutting ice to make fire or using a water jade (crystal) mirror to make fire, in fact, is the role of the convex lens to gather light, the predecessor Zhao Youqin is "warm through the gathering" simple four words explained clearly - "warm" means daylight, and placed on the "ant word, see it like a fly", is to say the magnification of the semi-convex lens or convex lens.

This kind of optical phenomenon and the principle behind it have actually been recorded and deeply thought by the ancients for thousands of years. It's just that these trickle-down thoughts have not been able to systematically summarize and speculate, which has to be said to be a pity.

Including the prototype of the telescope, it has actually been circulated in the Taixi Kingdom for a long time, but the Taixi Kingdom has used it as a magic mirror to deceive people in the theater performance, and has not yet been used for military, astronomical observation and other practical purposes. However, in the Jianghuai period, the rich and noble people had a magnifying glass made of water jade so that the blind could see things.

From magnifying glass to telescope, the reason why it is so difficult is that two lenses with the same focal length and curvature are difficult to grind, which is very laborious and exhausting. It was also after several years that more than a dozen skilled grinding and mirror craftsmen were trained, but fortunately, the manufacturing of mirrors was very practical and in great demand, so as to continue to improve grinding and mirror technology and train more professional craftsmen.

It was only in the second half of last year that the Huaidong Army made a small batch of polished monoculars, which could see fine objects three or five miles away, but the telescopes that could really be used to observe the stars were more demanding and demanding, and two more were recently built.

Zhao Shuhan can guess the truth based on the shape of the mirror he sees - he is really one of the three or five people who are knowledgeable and can think critically.

It's a pity that such a person can't serve the new empire.

Of course, Zhao Shuhan understood why he couldn't be included in the Chongxue Pavilion, so Song Shixian said it without any thought, but it was even more embarrassing in front of Chen Enze, thinking that what he said just now, the traces of the show were also a little obvious, I really don't know what people would think when they came into Lin Lian's ears?

Song Shixian devoted himself to studying miscellaneous studies, did not know about mundane affairs, and said to Zhao Shuhan: "Brother Zhao should remember the words contained in the "Book of Heavenly Officials" such as 'the year is yin in the afternoon, the stars live in the unitary, and the stomach is in May, and the morning is bright, and it is said to be enlightened', right? ”

After asking Song Shixian to diverge, Zhao Shuhan asked, "Does Master Song want to observe the year star?" The passage that Song Shixian recited just now actually refers to the position in the sky in the fifth month of the year, and only a person as knowledgeable and memorable as Zhao Shuhan can quickly understand it.

"Ranye," Song Shixian said, "Then Brother Zhao still remembers the words of the stars recorded by Qu Tan in the Kaiyuan Chronicle of the previous dynasty?" ”

Song Shixian mentioned that the predecessors of the book compilation are withdrawn, except for Zhao Shuhan, there are really not many people in the world who can keep up; Of course, Zhao Shuhan can know that it has a lot to do with his combing of the world's canons and compiling the "Craftsman's Dictionary" in the past ten years...... Is Bachelor Song going to look at this little red league star with the help of a telescope? ”

Jupiter, which is familiar to later generations, is the brightest star that can be seen above the night sky with the naked eye, but Jupiter is not a lone star, in the dark of the starry sky, there are many moons around Jupiter - the ancients had good eyesight, and they could only vaguely see a small red star, called Jupiter's alliance star.

Although there is still half a month to observe the solar eclipse, Song Shixian, Jiang Yue and others have actually overturned the old theory that the sun, moon and stars travel around the earth and through the sky in their hearts, and the basis for this is to use this one-meter-long telescope to observe the annual star.

In addition to the "Little Red Star" recorded by their predecessors, they also clearly saw the other four small stars moving around the year star - this alone can prove that the place where they stand is not the only center of the Heavenly Celestial Phenomenon, which has directly shaken the old theory of "the heart of the Heavenly Earth......

This conclusion, Lin Jian did not call Song Shixian and Jiang Yue, they were in a hurry to announce it.

After all, there are only two large stargazing telescopes at the moment, and publishing the conclusions through the Di Bao will only cause a violent quarrel. Confucianism was established as an official school and used by the emperor's family, which began in the former Han Dynasty, and its position was consolidated for more than a thousand years, where was it so easy to shake off?

The observation of the eclipse is a matter in which many scholars and the general public can participate; Depending on the location, there will be a time deviation in the occurrence of the eclipse, which will be empirically demonstrated by many scholars and the general public.

Even if there are some stubborn people who will not believe it even if they see it with their own eyes, there will inevitably be people who believe what they have seen.

Song Shixian had a conversation with Zhao Shuhan at the banquet, and saw that he almost independently deduced the matter of the eclipse jet lag, and when he met a bosom friend who could be compared, he naturally couldn't wait to pull him to the observatory to observe the stars.

Some disciples compared the catalog of the elephant star and aimed the mirror at the direction of the year-old star, and Song Shixian motioned to Zhao Shuhan to go over to watch the year-old star first.

Zhao Shuhan has always remembered this little red star on the side of the old star recorded by his predecessor Qu Tan, but he does not have a pair of natural eyes, and he has not been able to see the little red star many times when he watches the stars at night. In fact, how many years this little red is only a legend, orthodox Confucian scholars can never admit the existence of moons on the star; And the predecessor Qu Tan recorded this little red star, and he also cautiously called it the "alliance" of the year.

Looking at the sky and the stars, and having the weapon of stargazing and mirroring, Zhao Shuhan can't wait to take a clearer look at the stars; With the help of Song Shixian and his disciples, the telescope was fine-tuned to see the year star, and when I looked closely, I was stunned there, in addition to the legendary little red star, there were also three small stars clearly visible on the side of the year star......

"How?" Song Shixian was quite proud of Zhao Shuhan's shock, he saw four small companion stars on the side of the year star more than half a month ago, and his heart was also turbulent.

Seeing that Zhao Shuhan was silent, Chen Enze walked to the front, only to see that his cheeks were full of crystal tears, and he exclaimed softly: "Master Zhao......"

"Chaowen said, it's okay to die at night," Zhao Shuhan turned his face to look at Chen Enze, put down all worldly fame and fortune, and said, "Please ask Enze to give a word to the deceased, Zhao Shuhan only wants to guard this stargazing platform in this life!" ”