Into Unscientific Chapter 135

  Chapter 135 Calling Foreign Aid

  In the astronomical world of later generations, there are many types of astronomical telescopes.

  According to the technical principle, it can be divided into many models:

   Such as reflecting telescopes, refracting telescopes, radio telescopes, etc.

   Galileo's first astronomical telescope in human history was a very standard refracting telescope.

  The modern Hubble telescope is also a refracting telescope, but its diameter has reached the human-manufactured limit of the entire optical mirror.

  James Webb telescope and so on are reflecting telescopes.

  As for the radio telescope

   This is relatively rare.

  For example, the sky eye in our local mountainous area is a radio telescope, and the ticket is only 50 yuan.

  As for the astronomical telescope Xu Yun mentioned, it is naturally a reflecting telescope, which is also the most frequently used telescope in later generations.

  But no matter how simple the hand rubbing process is, there is one link that cannot be avoided:

   is the calculation of data.

  Small to the most basic imaging focus,

  Medium to the impact of atmospheric disturbances,

  Big enough to optimize human flesh through the axial spherical aberration curve.

   Almost every process must use mathematical calculations.

Of course.

  Xu Yun, as a professional who has been engaged in scientific research for two lifetimes, the calculation of these data is not difficult for him. .

   As long as a few basic data are needed, it can be calculated even with eyes closed.

   But the problem is

   Does it make sense to do so?

  Science knowledge does not need to be memorized like liberal arts, especially for professional research and development, cramming education is meaningless.

  Because the field of research and development needs to be constantly updated and iterated, that is to say, practitioners must have the ability to operate.

  The preparation of allicin was for emergency, so Xu Yun didn't have time to clarify the deeper knowledge.

   But right now it is a conventional physics teaching situation, if everything is explained clearly, it may not be a good thing for Lao Su and others.

  Even in the teaching of later generations, teachers sometimes let students do experiments to verify the phenomenon.

  Operate by yourself and break through cognitive barriers with practice.

  This is much, much better than pure one-way knowledge instillation.

  So this time, Xu Yun chose to be a rare person.

   He pondered for a moment, then said to Old Su:

   "Master, according to the manuscript left by the Fengling Moon Shadow Sect, there is not much difference in structure between the telescope and the microscope.

   Both need to use the objective lens and eyepiece, just focusing. That is, the precision of the mirror is somewhat different.

   But unfortunately.

  The record of the telescope in the Codex only ends here, and the latter part was accidentally lost.

  The second half is precisely the most critical link in the production process, involving a lot of calculation and deduction, some necessary precision is lost, and the telescope is... alas. "

  Old Su couldn't help but frowned. As a master who has engaged in combined engineering, he naturally understands what the precision data represents:

   "Xiao Wang, why is the data lost?"

  Xu Yun sighed when he heard the words, as if recalling some regrettable things, he explained:

"It is rumored that in a certain month in a certain year, the sage Shi Hao was calculating whether it was possible to cut off the time. Unexpectedly, a man with red hair suddenly broke into the sect, and took away the second half of the manuscript and the sage Shi Hao's favorite milk. Can.

  Since then, Shi Hao's heart has died and he has retired to seclusion, avoiding the world and not being recorded by ancient history.”

  After hearing Xu Yun's words, a trace of regret appeared on Lao Su's face.

  Through the history of the previous dynasties, there are as many talents as stars in almost all dynasties who retired to the fields because of discouragement.

   Some, like Tao Yuanming, live a chic and indifferent life after retiring, leaving behind a stalwart figure who is open-minded in the mountains and rivers for later generations.

  Some just left one or two footprints and fingerprints like Wang Rong, and are occasionally sighed by later generations.

   And more are penniless, and all traces disappear with time.

   I can only vaguely glimpse their names once or twice in the reclusive county annals, and most of them will add the words "unknown birth and death" after them.

at the same time.

  Old Su thought of his good friend, another old Su—Su Shi.

  Brother Zizhan is now resettled in Danzhou (that is, Hainan in later generations), and I don't know how he is now?

   I heard that in another year, the emperor may issue an amnesty. I hope that brother Zizhan will be merciful by heaven

  Later, Old Su brought his mind back to reality, and put his thoughts on the astronomical telescope.

  For such an "artifact", he really didn't want to give up.

  Then he thought for a moment, with some expectation, he said to Xu Yun:

   "Xiao Wang, although the handbook on the telescope has been lost, you still remember the structure of the object, right?"

  Xu Yun pretended not to understand the purpose of this sentence, and nodded obediently:

   "Exactly."

  Old Su heard that, a gleam flashed in his eyes.

   He was silent for a moment, as if he had made up his mind, and solemnly said to Xu Yun:

   "Xiao Wang, if you can provide enough property and calculations, is it possible to rebuild an astronomical telescope?"

  Xu Yun hummed lightly, with a trace of solemnity on his face:

   "Although the accuracy data of the items needed for astronomical telescopes has long been lost, the axioms for surveying and mapping accuracy still exist.

  If we can find some manpower and complete materials, it is not impossible to make an astronomical telescope by combining the axioms and deduction.”

  Hearing Xu Yun's words, Old Su's eyes immediately brightened, and he turned around and exchanged glances with Xiao Li and Xiao Zhao.

   After a while.

  Old Su took a deep breath, made up his mind, and said decisively to Xu Yun:

   "Since this is the case, I will try to see if I can restore the astronomical telescope again!

  It is a pity that such a device that can make mortals look up at the sky was buried so silently. "

   As he spoke, he paused, and continued to say to Xu Yun:

   "Xiao Wang, I don't know who is needed to make an astronomical telescope?"

  Xu Yun thought for a while and said:

  “First of all, it is natural to be a mirror maker, and also to be a master in the world.

  Whether it is a microscope or an astronomical telescope, the real core is actually the objective lens and the eyepiece.

  Especially for telescopes, if the precision of the glass mirror is high enough, you can cut a piece of bamboo to make the mirror body.

  So high-quality glass raw materials and craftsmen are essential. Of course, further processing and polishing are required in the follow-up.

  By the way, there is also the donkey that needs to be prepared. "

  In the weird DIY circle of later generations, rubbing binoculars by hand is a very common thing.

  The degree of commonness is even much higher than that of the hand rubbing generator.

  After all, self-made generators are generally useless, but self-made telescopes can look into the distance or see the stars.

   Therefore, in the DIY circle, masturbation cups and binoculars are basically the two most common types of items.

   There are generally three ways to make your own telescope:

  One is to directly buy parts from a certain package and assemble them yourself, that is, to save a branding fee and processing fee.

  The second is to buy a cheap convex lens by yourself, grind the lens to make a silver mirror reaction, and grind and assemble the whole process.

  The third is to use Gaussian optics to list the equations, and use the three surface curvatures as variables to calculate the spherical aberration coefficient, which is the standard pure hand rubbing.

Of course.

  The third method seems to be mainly based on calculations, but when making and grinding lenses, the higher the requirements for manpower and materials, the better.

  So after listening to Xu Yun'e's request, Lao Su pondered for a moment, then turned to Xiao Zhao:

   "His Royal Highness, I'm afraid I need to trouble you this time."

  Xiao Zhao put his hands behind his back, and readily agreed:

   "No problem, the craftsman who makes the utensils can be handed over to the king, and the required materials will also be listed, and we will be able to get them together within seven days."

  Xu Yun heard the words, and hurriedly cupped his hands towards Xiao Zhao:

   "Then there will be His Royal Highness King Lao Jian."

   "Is there work?"

  Xiao Zhao raised his eyelids and glanced at Xu Yun, with a slightly sarcastic smile on his lips.

   But it seemed that he had restrained himself, and he didn't speak in the end.

  At present, Zhao Ji has just come to power, and apart from a few confidantes, there are almost no reliable high-ranking people in power.

  Although the process of handing over the throne was relatively peaceful, everything seemed to be going smoothly.

  But for the royal family, the court has no one of its own, which can basically be directly tantamount to danger.

  Even Zhao Ji, the faint king of later generations, is quite sensitive in this environment.

  So if Xiao Zhao took the initiative, he would need craftsmen and property to create a star-watching plaything, and the whole process would be completed under Song Huizong's nose.

  Then Song Huizong would not refuse, on the contrary, he might double meet Xiao Zhao's request and give him whatever he wanted.

   After all, looking at all the brothers, Xiao Zhao is the one who has the greatest potential threat to him.

  If he is addicted to playing around, it means that Zhao Ji can have more energy to develop his confidants.

   No matter how bad it is, you can get more power from the Queen Mother.

   Actually.

   This is also one of Lao Su's goals. I hope that the relationship between the two brothers of Emperor Zhezong can be eased to friendship as soon as possible.

only

is it possible?

  Think here.

  Old Su let out a sigh of relief, forcing himself to stop thinking about these political issues.

  After all, I have already resigned from office and retired from office. Some things are just done out of emotion, and there is no need or energy to participate too much.

   Then he looked at Xu Yun and asked:

   "Xiao Wang, besides property and craftsmen, what else do you need to prepare?"

  Xu Yun glanced at Lao Su who had an expression of 'my family is quite big, you can say it', pondered for a moment, and replied:

   "In addition to finance and craftsmen, there is only a little left"

   "That point?"

   "A master who knows how to calculate and deduce!"

   "Anathematical derivation?"

  Old Su repeated the word, not too surprised.

  After all, Xu Yun said before that the accuracy of the telescope must be calculated before it can be prepared.

  Although everyone now has basic arithmetic knowledge, there is obviously a certain gap between the series of preparation and calculation.

   Even Lao Su himself doesn't have a particularly deep understanding of mathematics.

   This is also a very common phenomenon in later generations. Top physicists actually have very little intersection with top mathematicians.

  The mathematical literacy of many physicists is just better than other people except mathematicians.

  Later generations have a complete system of mathematics and physics, let alone ancient China.

   It is impossible for even Lao Su to dabble in two of the most profound science majors at the same time.

   Then Lao Su thought about it for a while, and a figure suddenly flashed in his mind.

   His expression was shocked, and he said to Xu Yun:

   "Xiao Wang, I have a good friend named Han Gonglian, known as Mr. Yang Huai.

  In the early years, when the old man was ordered to inspect the armillary sphere used by the Taishi Bureau, he had met this person by chance.

  This person is extremely fond of math and deduction all his life, and his ability to do math is extraordinary, even ranked among the top five in Beijing.

   Right now, I am studying mathematics while I am unemployed in Beijing. If the old man asks, he will be willing to help! "

   Today is 4,000 words, don't worry too much, add more tonight!

  (end of this chapter)

Chapter end