Future library

Just like the three laws of physics, geometric optics also makes assumptions first and then verifies them - to put it more bluntly, you guess the answer first and then try your best to find the proof, or just make it up like this. OK.

For example, when faced with the problem of two small balls falling to the ground, Aristotle guessed: The heavier one will fall to the ground first. The evidence he presented is: Feathers fall slowly, while iron balls fall fast. After deceiving the world for 2,000 years - Aristotle is the most deceptive scientist in history - Galileo guessed again: two small balls hit the ground at the same time, and then dropped objects from high altitude on the Leaning Tower of Pisa to prove it, but he actually Don't know why. At the end, Newton used his head that had been smashed by an apple to draw a conclusion about universal gravitation, indicating that the acceleration of gravity is the same, and the big and small balls should fall to the ground at the same time.

In fact, from a statistical point of view, scientists have enough time to guess all the possibilities. It doesn’t matter if they lose. The key is to guess boldly. This is like buying a lottery ticket. The bet is the time to write the paper. and energy, writing two more articles is like making a big bet, and once it succeeds - you publish it. It doesn't matter if you fail. There are many scientists who guessed that they lost.

Before all the elements were discovered, Mendeleev dared to make a table of elements. When he didn't know what DNA was, Mendel dared to talk about the laws of inheritance - science is like a group of tough guys playing roulette, and the timid ones Guess red and black, guess the number if you are brave, and finally see where the ball lands. Those who win the bet accept the cheers of the crowd, and those who lose the bet actively participate in the next opening.

Cheng Jinzhou's luck is that he knows where the ball will land and just needs to wait for it to move to the position, just like a cheating dealer.

This time, he deliberately did not describe geometric optics clearly.

What's the use of describing it so clearly? Only flaws can attract the attention of other star warlocks. Those perfect contents may be very useful, but Cheng Jinzhou doesn't care whether the star warlocks really know how to apply geometric optics. If possible, more It is practical to bring some contribution points to these discussions.

It should be said that Dr. Cheng Da's nearly 20 years of ivory tower life did not make him a perfect scholar, but it definitely allowed him to develop his perfect ability to write papers. After completing the normal outline, Cheng Jinzhou began to delete and revise. He only wrote the most basic laws of linear propagation and reflection, and made the principles of reflection unclear. As for refraction, Not involved at all.

Geometric optics without refraction is of course unconvincing. First of all, it is different from human intuition. But Xiao Cheng has another way. He uses the correct law of reflection to accommodate his own incomplete law of reflection. The example he gave gives the answer that is correct...

This is actually a research method commonly used by scientists. The so-called staged research is just such a process of human understanding of atoms, from Dalton's atomic model, to the wrong raisin model and planetary model, to Bohr. As a progressive study of the atomic model, it is naturally necessary to do so. Of course, it is also very happy for scientists. The tiny atom almost gave birth to double-digit Nobel Prize winners.

He was writing cheerfully in the study, while the servants outside were talking about it. Lu Dayong, who had gone to the Xue Family Carriage Shop, quickly turned around and did not report back to Cheng Jinzhou. He stood near the kitchen and blew: "Everyone has been distributed." When he comes to the capital, he still has to ask the carriage house to deliver a message to him, saying it is the fastest and safest way. Doesn’t that make it clear that he will be slaughtered?"

"For gentlemen, they don't have much money." Someone immediately responded sourly, and this was naturally their repertoire.

"400 yuan is a lot of money." Lu Dayong smacked his lips and said, "If you find a pretty girl in Xiaoqi Alley, that's the price."

"Fuck you, which girl can let you sleep with 400 coins..."

"Maximum 500 coins."

"600 is about the same. Last time Lao Chen went there, he spent the whole night asking for a lot of money."

The laughter outside got louder and Cheng Jinzhou could hear it, but he was just writing and drawing in his study and did not go out to yell. It wouldn't matter if he whipped a group of people in the Cheng family's old house, but it was different now.

After all, the master's power at home is inseparable from his status outside. The third bedroom of the Cheng family was in chaos. His second uncle was in the capital, but he didn't send a word. It was normal for the servants to have any thoughts.

Thinking of his second uncle, Cheng Jinzhou let out another soft sigh. The second eldest son, Cheng Yunxiang and Cheng Yun'an, are direct brothers and hold the title of head of the Ministry of Civil Affairs. He can be said to be the most prosperous second generation son of the Cheng family. However, after Cheng Yun'an's accident, he remained silent and showed his attitude of avoiding suspicion. The next time he arrived in Jinzhou, he acted as if he was completely unaware.

In fact, a level 10 official can't help much. It's just that Cheng Jinzhou himself felt unhappy when he thought about it.

The people from the Huo family's horse and carriage team arrived soon. Lu Dayong went out to say hello twice, and then came in without any rules and reported: "Third brother, people are here."

"From the Huo family?"

"yes."

Cheng Jinzhou sealed the letter he had written a long time ago, walked out and handed it to the clerk from Huo's Car and Horse Racing Department who was wearing a white turban. After giving the address, he went back to the room. It is possible to directly ask a few star warlocks, but it is too time-consuming after all. If the other party keeps asking questions, a lot of things may be leaked. Letters are different. There is enough time to organize the language, and the other party's questions will naturally be limited. within the scope.

Locked in his house, Cheng Jinzhou continued to revise and complete his thesis. Intentionally controlling the content gave him a happy sense of control, as if he could control a certain field.

The results report of the Star Warlock Association is somewhat similar to the paper format that Cheng Jinzhou is familiar with, but there is no complicated content such as an introduction. Under normal circumstances, there is only the first author, and there is no such thing as the second or third author. The main text is As long as you write clearly, there are no special requirements.

Cheng Jinzhou has not completed many papers himself, but he has copied and read quite a few. He easily completed more than a dozen pages of content in an hour, and even made up an experiment by himself - in physics, experiments are always indispensable. Yes, Cheng Jinzhou is indeed familiar with geometric optics, and generating a few data is a matter of minutes. When he was doing experiments, how could he draw correct conclusions without generating data...

If you write smoothly, time will pass very quickly. When it was getting dark, a maid came in and said, "Third brother, the meal is ready."

After being here for only half a year, Cheng Jinzhou was somewhat accustomed to his aristocratic status. He frowned and said, "You don't know the rules. Who let you in?"

As he said that, he erased the wrong words and wrote them next to them again - under normal circumstances, the entire page with the wrong words should be rewritten, but he made a lot of mistakes and liked to be lazy, so he ended up rewriting them one by one. The writing on the paper seems to be covered with plaster.

The maid felt aggrieved, so she had to retreat to the door and knock on the door: "Third brother, it's time to eat."

"Bring it to my house. Have you received the reply?" Cheng Jinzhou said without looking back.

"Just received it." The maid whispered.

When Cheng Jinzhou heard this, he said angrily: "Why don't you come and report it?"

The maid, who seemed to be less than 20 years old, said with tears in her eyes: "You said you are not allowed to disturb you before dinner."

"When did I..." Cheng Jinzhou thought back and realized that he really meant what he said, but he still felt extremely uncomfortable. This era is different from later generations. It is not a big deal for multi-millionaires and billionaires in the 21st century to do things themselves. Having secretaries and housekeepers to help save energy and put on a show. But in the environment of the Great Xia Dynasty, capable servants were indispensable. Nobles could not drive carriages themselves or bargain with traders and lackeys. If you don't talk about it, the efficiency would be even lower. When he came to the capital, Cheng's mother originally wanted to borrow the help of the Liu family to spend some time first, but she didn't realize that the old man of the Liu family didn't want to acknowledge the marriage at all.

Things were prioritized, Cheng Jinzhou waved his hands in annoyance and said: "Go down and bring me the letter too."

Dinner was just three simple dishes and one soup. In the whole courtyard, the only host was a 13-year-old kid, Cheng Jinzhou. The servants could not be said to be bullying the master, and they would never take it seriously.

Fortunately, the skill of the master chef was still there. Cheng Jinzhou was eating the food while reading the letter sent by Xiang Xin. Xiang Xin knows one and a half of the three important laws. Light propagates in a straight line. Astrologians have long known this. Of course, it is regarded as an axiom and cannot be proved. In fact, the proof is meaningless. Instead, it proves that the gravitational field can make light Bending indirectly proved the theory of relativity correct in the 20th century.

Astromancers also understand a lot about the reflection of light, but they do not yet know the normal line (a virtual line perpendicular to the incident surface in order to solve the problem of reflection). In fact, there is no normal. To put it bluntly, we started to observe light, but we did not use mathematics to deal with it systematically. It is consistent with the development process in the 17th century. It also shows that their geometric optics is still in its infancy.

After dinner, Cheng Jinzhou sorted out the manuscript again, simply deleting the contents of the first few pages. After thinking about it, he simply listed the contents of normal lines into a separate article. Then he continued to write to Xiang Xin and asked her about refraction.

After struggling like this until midnight, Cheng Jinzhou sealed the thesis he had written and put it into a handmade envelope. The two articles were actually not troublesome. What was really troublesome was the transformation of weights and measures and algebraic symbols. Dr. Cheng Da deliberately defined a string of symbols by himself. It's a pity that I don't have enough status, so it's always a little weird to use mathematical symbols that I'm not used to.

"Lu Dayong." Regardless of whether it was dark or not, Cheng Jinzhou still called.

"Third brother." Although he didn't follow the rules very much, he still kept the people at the door who should be left.

"Go and ask someone from the Xue family to pick up the letter."

Lu Dayong looked at the completely dark sky and said reluctantly: "If we call now, the toll will be doubled."

"Then let them double up." Cheng Jinzhou said and pointed to the location of the envelope.

Lu Dayong agreed without hesitation, cleared the table roughly, and then walked out with the envelope.

…