This traveler only wants to choose the lowest difficulty

Chapter 294 Venus Observation
Du Wang originally expected Li Chunfeng to give him a long speech explaining in detail the underlying reasons for the occurrence of Venus during the day. Unexpectedly, Li Chunfeng gave him such a few words, about the angle between perihelion and the like. It sounded like It's not very convincing.

Du Wang finally frowned, and it took half a month to see this thing, you don't say anything, the high-end explanation of Yin Qi rising and turbid Qi falling, at least give me the latitude and longitude of the world Let's talk about it, such a few short sentences can't do business at all!

Du Wang couldn't help but smiled wryly and said, "Master Li, please explain in detail."

After hearing this, Li Chunfeng thought for a while, then pointed to the inferior astronomical telescope produced by Wang Dong in Shanzhou and said to Du Wang: "Sir, please look at this objective lens."

"Objective lens?" Du Wang asked, and Li Chunfeng nodded, pointing to the small plate under the telescope reflecting the objective lens.

Du Wang moved his eyes closer as he said, and the next moment he saw the image in the objective lens, he couldn't help but widen his eyes.

"Master Li, this is..."

Li Chunfeng nodded, "This is Venus!"

"Why is Venus... so big?" Li Chunfeng also smiled wryly.

As a supervisor of the Taishi Bureau, Du Wang was born in yin and yang households for generations. Even at the age of 50 or [-], Du Wang's eyes are still clear and bright, without any myopia or presbyopia.

Du Wang's eyesight is enough to see very low-magnitude stars with the naked eye using simple astronomical instruments in this era, but even with his sharp eyesight, he has never seen the appearance of Venus so clearly.

Du Wang looked at Li Chunfeng in shock, and quickly moved his head to the objective lens of the telescope, looking carefully at the red star in the objective lens.

Based on his many years of observation experience, he can recognize at a glance that this is Venus.In the past, he knew that the color of Venus was not pure white, but slightly glowing orange-red, but he had never seen Venus clearly through the telescope like today, seeing the orange-red self-heating light After a long time, Du Wang couldn't help but excitedly said: "This thing will be of great use to the Taishi Bureau!"

"With this object, if it is used to observe the broom star, the moon and the sun... can this object be used to observe the sun?"

Li Chunfeng nodded, but instead of smiling, his face became more serious.

He took out a slightly black filter from a small wooden box, "If you want to see the sun, you need to add this kind of filter to not hurt your eyes. What you see will be blurry, but it is far better than what you see with the naked eye." It will be much clearer.”

Du Wang couldn't help but be filled with joy. It took him a long time to think of something, and then he looked at Li Chunfeng again, "Master Li is at home these days, is he just tinkering with this kind of novelty? But I don't know how Master Li got the gold star from this thing." What kind of perihelion point of view are you working on these few days?"

When he said this, Li Chunfeng hesitated for a moment, and then he seemed to make up his mind, Li Chunfeng's beard was wispy, and he said to Du Wang with clear eyes: "Master Du, I got a few volumes of strange books recently. "

"Oh." Hearing this, Du Wang couldn't help but turn serious. When he saw Li Chunfeng's appearance, it was obvious that Li Chunfeng had read something extraordinary in the book.

"Book of Celestial Phenomena?"

Li Chunfeng thought about it, nodded and said yes.

"No wonder."

Since ancient times, astrology and celestial phenomena have been an important tool to mobilize the hearts of the people in the world and create public opinion. All dynasties throughout history have attached great importance to it. If any theory brings about subversion of astronomy, it will not only affect astronomy itself, but more importantly, it will It is necessary to be cautious when it directly involves the legal basis for the establishment of the dynasty at this time.And Li Chunfeng's expression is so solemn, it is obvious that his book must contain a lot of content related to astronomy, and it is also subversive.

After thinking for a while, Du Wang asked, "Where did Master Li get this book from?"

This is his professional sensitivity. The first thing Du Wang thinks of is not whether these theories are correct or not, but the source of these theories.If these new astronomical theories come from distant regions, then he can still try to listen to them. If they come from the research of astrologers from neighboring kingdoms, then Du Wang must be careful, because the Taishi Bureau adopts the methods of surrounding countries. The theory of astrology interpretation is likely to eventually lead to the loss of academic discourse power, and astrologers in neighboring countries may use a new set of theories to subvert the authority of the Li and Tang royal family established by the Taishi Bureau.What is even more frightening is that the theory obtained by Li Chunfeng was written by a folk alchemist in the Tang Dynasty.The astrological theories written by folks are likely to be deliberately propagated and circulated by people with ulterior motives. If they contain subversive words, they may cause huge troubles.

After Du Wang asked, he looked at Li Chunfeng nervously, and was relieved to see that Li Chunfeng didn't look too nervous.

"This set of books is not written by folk alchemists. Its source," Li Chunfeng thought for a while, replied: "I can't tell."

"It's fine if you don't know clearly." Du Wang thought that this meant that the book was probably written by an unknown person from a distant place, which would reduce a lot of political risks, but he saw that Li Chunfeng's brows were furrowed even tighter.

"But the content of this set of books may be more troublesome than the astronomical phenomena explained by alchemists."

"More troublesome?" Du Wang couldn't figure out how to explain astrology would be more troublesome than the analysis of alchemists with different interests.

"Hmm... Could it be that it is difficult for us to explain because the book brings many novel conclusions?"

This was the most troublesome situation he could think of. After all, the Central Plains Dynasty at this time had already done a lot of research on the study of astrology. The Taishi Bureau can give an explanation for any astronomical changes, but sometimes it is not accurate. The most troublesome situation that Du Wang can think of is that some theories given in this book will overturn the previous explanations of the Taishi Bureau and replace the original perfect astrology theory system. It was a mess. Thinking about this guess, Du Wang thinks it is quite reliable. It must be that Li Chunfeng was confused by these new troublesome phenomena, which is why the research institute has been studying at home for so long.

But thinking this way, he saw that Li Chunfeng was still smiling wryly.

"This book didn't make things any more confusing, but..." Li Chunfeng smiled more bitterly, "I'm just afraid that the things were explained too clearly..."

"What do you mean? Wouldn't it be better to explain clearly?" Du Wang really didn't expect this time.

But Li Chunfeng looked at him very worriedly.

"Master Jiancheng, have you ever thought about it? If the movement of the stars in the sky has nothing to do with the so-called royal aura of the sky, but just a pile of stones and clods moving back and forth in the new sky, the so-called astrological sky is just a coincidence of those stones and clods If someone proposes and proves these points of view, how will the world react?"

(End of this chapter)