Chapter 153 Everything is ready, I only owe Dongfeng (6.8K)
After getting a relatively satisfactory answer, Xu Yun asked Mr. Xie to help.
He asked him to find some servants and maids, and placed Xiao Zhao and Xiao Li in the guest rooms.
Early the next morning.
Xiao Zhao was the first to wake up from his drunkenness.
"His Royal Highness King Jian."
After Xiao Zhao put on his clothes and went out, Xu Yun, who had been waiting outside the hospital, quickly stepped forward and raised his hand to Xiao Zhao:
"Your Highness, did you get used to sleeping last night?"
Xiao Zhao rubbed his still sore head and grinned:
"The bed is quite comfortable, but the alcohol is a bit strong."
Then, without waiting for Xu Yun to answer, Xiao Zhao thought of something and asked him proactively:
"By the way, Mr. Wang, did the King make a drunken blunder yesterday?"
When asked this question, Xiao Zhao's tone seemed casual, but his expression was slightly nervous.
After all, although he is a good drinker, he is rarely really drunk.
In most cases, it's just an act.
When he learned from Wang Zhen yesterday that Xu Yun had good wine in his hand, he thought it would be at most similar to the incense in the palace, which was around 20 degrees in later generations.
The result was unexpected.
The alcohol content of Xu Yun's liquor was much higher than he expected.
However, the wine tasted extremely mellow when he first tasted it. He drank a few more sips without noticing, and began to feel dizzy as the wine got stronger.
Although Xiao Zhao knew that his wine was pretty good, he was always afraid of what might happen. It would be terrible if he really said something.
But soon, Xu Yun's answer made him breathe a sigh of relief:
"Your Highness King Jian, you are asking the wrong person.
The grass-roots people had little drinking power and felt dizzy after just two glasses of wine. They were the first to get drunk yesterday.
But before the common people fainted, they seemed to still vaguely remember what Miss Li was saying to you, 'Your Highness has been absent from court for several days, so he should punish himself with a drink' and so on."
Xiao Zhao was stunned for a moment when he heard this, and then nodded thoughtfully, his expression visibly relaxed:
"I do remember saying something like this, Hey, Miss Li has such a temperament, she likes to make a fuss when she is drunk. That was the case with the original song "Like a Dream"."
Xu Yun could only laugh awkwardly.
Then Xiao Zhao briefly chatted with him for a while, and after making sure again and again that he didn't say anything risqué, he quickly left in a hurry.
Although the Queen Mother has now passed the most dangerous stage, Xiao Zhao no longer needs to stay in the palace all the time.
But as a junior, I still have to go and greet Queen Mother Xiang every day.
Xu Yun turned around and headed to another courtyard, preparing to give a routine mathematics lesson to Lao Jia Han Gonglian and others.
A few days ago, after calculating the tilt factor of the lens, the calculation workload on Lao Jia and others was reduced a lot.
However, Xu Yun did not let them leave.
Instead, he persuaded Lao Su to give Liu Yi and several others the status of disciples, and continued to impart advanced mathematical knowledge.
These include symbols, names that are not limited to modern mathematics, and some related to binomial equations, i.e.
Calculus-like.
It’s the same sentence as before.
Although the mathematics level of the Song Dynasty was very high, it still did not have the systematic basis for the complete derivation of calculus.
For example, before calculus was deduced by later generations of Mavericks, they first had teacher Barrow's product quotient theorem of two functions. At the same time, they also had infinitesimals and a large number of previous guesses and deduction results as the cornerstone, and then they deduced calculus.
Although he is a genius, he does not violate the laws of mathematics.
This was not the case in the mathematics community of the Song Dynasty. There was a lack of accumulation in this area. Even if Xu Yun really came up with calculus, it could only be regarded as encouraging others.
Therefore, what Xu Yun can do is to inform Lao Jia of the few relevant variables in the entire calculus system, which is what Xiao Niu calls Liu Shu.
Try to plant some seeds for the local mathematics community in this time and space, such as making the college entrance examination more difficult by 20 or 30 points.
that's all.
I was taking turns giving lessons to Lao Jia, giving lessons to Xiao Zhao and Xiaoli, and setting up a small stove for Lao Su.
Twenty days go by in a blink of an eye.
It was early this morning.
Xu Yun finished his morning snack as usual, yawned and just left his hut when he found a little old man standing outside the door:
Siegfried, the "eighth-level worker" of the Northern Song Dynasty.
Seeing that Siegfried was waiting for him, Xu Yun quickly stepped forward and gave him the courtesy of a junior:
"Master Qi, why are you here? Could it be that the telescope is about to be made?"
Siegfried smiled and cupped his hands towards him, nodded and replied:
"Master Wang, about 80% of the preparation of the telescope has been completed. Today I came here to ask you to go to the Instrument Manufacturing Bureau to check it."
Then he paused, seemed to remember something again, and added:
"By the way, Miss Li's microscope has been completed. Young Master can also take delivery of it."
Xu Yun nodded clearly.
Previously, considering that the telescope was quite large and required a large amount of professional equipment to manufacture, the old Su family was obviously not suitable.
After many discussions, the production location was finally arranged at the Manufacturing Bureau.
Of course.
In addition to this obvious reason, there is another potential reason:
The whole process requires the consumption of more than five tons of iron. In ancient China, this stuff was an important military material.
If this iron fell into private hands, it would be enough to arm a large army.
Therefore, for the sake of stability, the entire production process must be carried out under the eyes of Emperor Huizong of the Song Dynasty.
The only part of the entire process that was carried out at Lao Su's home was the production of a mercury paraboloid.
This mercury paraboloid Xu Yun had finished making it a few days ago. It is currently stored in a sealed and low-temperature environment and can be used at any time.
That is to say.
Siegfried was mainly responsible for the cylinder body, the spherical lens and the related aspects of changing the water transport instrument platform into a rotating instrument clock.
Xu Yun then simply took care of his clothes, and then followed Siegfried to prepare for the weapon making bureau.
It's a coincidence.
As soon as the two of them reached the door of Su Mansion, they saw Xiao Li coming towards them.
"Miss Li."
Xu Yun quickly stopped the little bean sprout. Today is not a day for class. This girl obviously only came to visit for one thing:
"Are you looking at the microscope again?"
Xiao Li nodded and said:
"I made an appointment with Uncle Su the day before yesterday. I can use the microscope for two hours today."
Xu Yun suddenly smiled and raised his chin towards the door:
"That's a coincidence. Miss Li, don't go inside. Come with me and Master Qi."
Xiao Li blinked, with a hint of reluctance on his face:
"Where are we going? I finally got this opportunity from Uncle Su."
"Of course, go get your microscope. Damn, slow down!"
that's all.
Xu Yun and the two followed Siegfried and took a carriage to the weapon making bureau.
The Ordnance Manufacturing Bureau was established 33 years ago and is affiliated with the Ordnance Supervision, but is not responsible for the preparation of ordnance.
Its main production function is to refine ironware for non-military use.
The more common ones are iron tools such as curved shaft plows, as well as some iron axles used in high-end carriages, etc.
In addition, iron pots or kitchen knives are all government-run businesses these days, and private businesses are even equivalent to private coinage.
Siegfried's department is a bit special.
Some are similar to the R&D institutions of later generations of large factories. They do not have any rigid production tasks on weekdays, and they mainly focus on self-development of new iron tools, etc.
Of course.
This kind of research and development has certain constraints.
For example, only how much iron can be consumed each year, multiple people must be present during the smelting process, scrap iron must pass multiple verification processes before it can be destroyed, etc.
The location of the Making Bureau is in the northeast of Yu Street, and you can see some smoking iron-making furnaces in the distance, with an obvious earth-made industrial atmosphere. (Reference to the architectural layout of Bianjing during the Huizong period of the Song Dynasty doi10.16783/
j.nki.nwnus.2009.05.007)
In fact, Xu Yun has always been a little confused:
Why is a department like the Instrument Manufacturing Bureau, which may cause major accidents at any time and pollute the environment, not only located in Bianjing City, but also only about a mile and a half away from the imperial palace?
Not to mention how much harmful waste gas four six-meter-high iron-making furnaces can produce.
The acidic sewage produced by iron smelting alone will flow out along the Bianhe River, seriously affecting the daily life of residents in the northeastern area of Bianjing City.
It's really strange
Bang bang bang
When Xu Yun and others walked into the manufacturing bureau.
There were a large number of shirtless strong men using black and hard tools to hit some round, slightly elastic targets.
Siegfried explained while leading Xu Yun and others:
"Mr. Wang, Miss Li, this is the hammering on the bottom of the pot. After the hammering is completed, it can be quenched and reinforced."
Xu Yun nodded and remembered the scene of sparks flying in his heart.
This is the pinnacle of ancient Chinese skills.
If I remember correctly.
Quenching technology should have appeared in the Spring and Autumn Period, and began to be widely promoted after the Western Han Dynasty. It is also a technology that is more than a thousand years ahead of Europe.
But in later generations, everything changed.
Iron ore needs to be purchased from other countries.
After all, this is an innate limitation of resources, dating back to the Neoarchean Era, and is a situation that cannot be changed by human beings.
However, some iron-making equipment and even iron-making processes have been seized by foreign countries. For example, technologies such as FINEX have to pay patent fees to Primetals, which is a bit speechless.
It can only be said that the hole dug by a certain braid was too deep, and he was still paying off his debt a hundred years later.
Then Xu Yun and the others followed Siegfried for a while, and the surrounding voices gradually began to become quieter.
A quarter of an hour later.
Several people passed through a courtyard gate and came to a ground covering an area of nearly 300 square meters.
I only see this moment.
There is a thick iron cylinder lying on the ground, about ten meters long and about one meter in diameter.
It is hollow inside and has no other patterns etched around it.
One side of the iron cylinder is relatively smooth and simple, while the other side is much more complicated, with a large number of fine mechanisms and push grooves inside.
It is clear.
This is the barrel of the telescope.
Siegfried led Xu Yun to the tube, pointed at it and said:
"Prince, please see if this tube is qualified?"
Xu Yun cupped his hands towards him, walked to the edge of the iron tube, and began to check the completion status.
be honest.
The barrel of the telescope is not very complicated.
Except for the subject.
The only key structures left are the finder mirror, guide mirror and rotor clock, which are nothing more than a matter of accuracy.
Some can be accurate to seven or eight decimal places, while others can only be accurate to one or two decimal places, so the prices vary greatly.
Among them, the rotating instrument clock is mainly used to compensate for the rotation of the earth so that the telescope is always pointed at the same area of the sky, thereby achieving stable observation results.
Nowadays, the power of rotary clocks is mainly driven by motors, and the speed is controlled by astronomical clocks or radio oscillators.
In the early rotary clocks, their power came from a chain-type weight or spring, and the rotation speed was controlled by a centrifugal governor.
The Water Movement Instrument Platform, which represents the pinnacle of Lao Su's life, utilizes the latter principle.
When designing the layout of the telescope, Xu Yun made a simple modification of the telescope clock based on the water-borne telescope.
First, the torque was adjusted, and then a surrounding channel was made inside the barrel.
Making it an attached device.
Then Xu Yun bent down, put his right hand deep into the tube and began to fumble.
A few seconds later.
He touched three small raised plates about 30 centimeters from the wall of the cylinder.
Xu Yun twisted slightly, and an iron plate was disassembled.
Then he randomly picked up a piece of dogtail grass from the ground and inserted it along a certain gap.
At the same time, the torque is adjusted and accurately expanded to twenty times the speed through the scale.
soon.
Under the action of the internal spring, the dog's tail grass rotates along with the stage.
"one two three"
Xu Yun looked at it carefully for several minutes, counting in his mind.
A few minutes later.
There was a look of satisfaction on his face.
The accuracy of this set of rotating instrument equipment is very perfect, and it is more than enough for at least this observation mission.
In this way
Just let the donkey at home store a few more turntables.
Then he reinstalled the iron plate and began to examine the remaining finder scope and guide scope.
Friends who know about astronomical telescopes should all know this.
Because the field of view of the primary mirror of an astronomical telescope is generally relatively small.
Therefore, it is often very difficult to find the observation target directly in the primary mirror because there is often no other celestial body near the target that can be used for comparison.
In order to solve this problem, later generations quickly searched for the celestial objects to be observed.
Astronomers attached a small telescope with low magnification and large field of view next to the main mirror.
It's a finderscope.
Most finderscopes use refracting telescopes, whose optical axis is parallel to the optical axis of the main mirror.
The aperture is generally around 50-100mm, the field of view is around 30°-50°, and the magnification is 7-20 times.
There is also a reticle for calibration at the focal plane, which can be modified with a scale.
While observing.
Just use the finder first to find the celestial object to be observed, and adjust the object to the center of the finder's field of view.
Because the optical axes are parallel, celestial objects will appear simultaneously in the field of view of the primary mirror.
in addition.
The primary mirror is used for long-term observation.
In order to promptly correct errors in tracking, observers will also set up a monitoring telescope next to the primary mirror.
It is the guide mirror.
The diameter, focal length and magnification of the guide scope are larger than that of the finder scope, and the field of view is smaller than that of the finder scope.
When the observation target deviates from the center of the main mirror, this situation will be reflected in the guide mirror, and it can be adjusted back to the center of the field of view in time.
However, there were many profiteers in later generations. Some popular astronomical telescopes only have one of a finderscope and a guidescope, which greatly affects the observation experience of beginners.
The eyes are returning to reality.
Xu Yun came to the star-finding lens department and measured the optical axes of the two mirrors through the wisdom teeth he carried with him.
"17.4 cm."
Then he came to the tail and continued the calculation.
"It's also 17.4 centimeters."
Then there's the guide scope.
"Head 12.1 cm."
"The tail is also 12.1 centimeters."
"Completely consistent and parallel."
After the inspection is completed.
Xu Yun stood up, patted the dust on his hands, and gave Siegfried a thumbs up:
"Master Qi, there's nothing wrong with the barrel. I wonder what's going on with the mirror now?"
Seeing that the barrel passed Xu Yun's test, Siegfried relaxed his shoulders slightly and replied:
"The mirror surface is still being polished. After all, unlike the barrel body, the mirror surface is completed by a young man.
Therefore, it needs to be relatively slow. Judging from the current progress, I'm afraid it will take about a week."
Xu Yun was silent for a moment, calculated the approximate time, and said:
"Master Qi, don't be nervous, and don't ignore quality in pursuit of time.
If one week is not enough, it will be ten days; if ten days is not enough, it will be two weeks; if two weeks is not enough, it will be one month.
The master doesn’t have high requirements for the construction period. Everything is based on accuracy. Slow work will bring out fine work.”
Then he thought of something else, glanced at Xiao Li who was staring at him eagerly, and asked again:
"By the way, Master Qi, I don't know about Miss Li's microscope."
When Siegfried heard this, he immediately pointed to a room nearby:
"The microscope has been made. It's in that workshop. You can enter by pushing the door."
Xu Yun looked at him again and confirmed:
"Master Qi, is the microscope made according to the drawings I gave you before?"
Siegfried nodded heavily:
"That's right, everything is consistent with what the Young Master told me. There is no deviation at all."
Xu Yun nodded, pondered for a moment, and said to Siegfried and Xiao Li:
"Master Qi, Miss Li, I'll go in first to check."
As the person who knows the most about microscopes, Xu Yun’s request is totally without any problems and is reasonable.
Even Xiao Li didn't say much and watched Xu Yun enter the house.
A quarter of an hour passed.
crunch
The door to the house was opened again.
Xu Yun walked out carrying a box.
I saw him raising the box towards Xiao Li and saying with a smile:
"Miss Li, the precision of the microscope is not necessary, but the box seems a little heavy.
How about I hold it for you and give it to the groom later, and you can check it yourself when you get home?"
A trace of excitement flashed in Xiao Li's eyes, and he nodded quickly:
"That's very good, thank you very much."
Seeing this, Xu Yun put down the box and raised his hand towards Siegfried:
"Master Qi, there are still some things in the house. Now that there are no problems in all aspects, the boy will leave first. I hope Master Qi will take care of the remaining lenses."
Siegfried quickly returned the gift:
"Don't worry, Mr. Wang, I will keep this in mind and I will not make any mistakes."
Then he accompanied Xu Yun and the others back along the original road and sent them outside the door.
Xu Yun handed the box to Xiao Li's driver and said goodbye to Xiao Li on the spot.
Da da da
Looking at the carriage gradually going away, Xu Yun sighed slightly: