Hammer of Technology

"What the hell am I? How can I have the nerve to comment on Apple Cars?"

"That meow... let's make a bold guess... the God of March is going to explain why Apple Cars are awesome?"

"Forgive me for my limited culture, but is it true that limited culture doesn't even distribute barrage these days? Has the era of the word "fucking" really come to an end?"

"After graduating from elementary school, I shed tears of regret. I decided to write a long article to tell everyone what it was like when I found out that my IQ was not as good as that of a cat."

"Don't cry, in fact, I didn't quite understand what the cat was talking about after I graduated from college, but I know that if I can understand it, maybe I can apply for Tesla's designer."

"Can you all stop arguing? It's affecting my study, the formula just now was half blocked by an idiot, please repost!"

"I just left my high-level math book and wanted to watch the Apple press conference to rest my brain, but this was given to me again? Can you let me go..."

Seeing that everyone's complaints are beginning to show quality and self-cultivation, Ning Wei feels satisfied...

Of course, this is not just for the sake of excitement, some enthusiasm is still needed. When the whole people are interested in science, he can launch a math problem that he has been thinking about these days at the right time. There is no psychological burden for this kind of enthusiasm.

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318 Inequality reproduction

In fact, Ning Wei has always possessed the attributes of an otaku, as if he was sitting at a messy desk with great interest at this time, staring at the computer screen, watching Sanyue doing science popularization for netizens who also paid attention to the Apple conference, and only felt that very interesting.

When Tim Cook stood on the rostrum and began to tell you some data that made countless investors crazy, March will also intimately share with you how difficult it is to realize these data, such as how the battery needs Design, how much energy density needs to be achieved, and how to allocate the ratio between the body and the battery can achieve these data...

In short, it will be launched in March, which is enough to analyze many of the scientific details clearly for everyone. As long as you pay attention to the bullet screen issued by the bright red font, you will not have to worry about not understanding this conference.

In the middle, Liu Wei inquired twice, looked at Ning Wei's foolish look at the computer at the messy desk, shook his head, and then quietly waited beside him.From the clutter of Ning Wei's desk, he could probably tell that Jiang would come over after his self-study today.

Because in general, no one is allowed to touch Ningwei's desk except himself and classmate Jiang. There are no rules, but there are superficial rules that have been agreed upon, because Ningwei will lose his temper if he can't find a piece of manuscript paper that he wrote down. , If you find out that it was Jiang who took care of it, you will lose your temper. Of course, this is also because Jiang can always tell him exactly where he can find it.

But if someone else cleaned it up, then Professor Ning's resentment would have to be borne. Even if he knew it was just venting his anger, there was no reason to refute it.

So even if Liu Wei sorted out Ning Wei's discarded papers for calculations, he had to collect them from the part where Ning Wei threw them into the wastebasket or pushed them to the opposite table, and never touched Ning Wei's desk.

Student Jiang is also very busy recently. In the last semester of his junior year, the courses arranged are relatively concentrated, and the academic pressure is still very high, so naturally there are fewer classes.Ning Wei can help make up for the courses in mathematics, but Ning Wei can't do anything about other courses in economics.

If you really want to study it carefully, in fact, there may be more theories in economics than mathematics, although most of them are actually useless...

Symmetrical economics, statistical economics, political economics, behavioral economics, macroeconomics, microeconomics... Economists are always trying to unravel complex economic connections, trying to find out the laws, so that the economic Development can maintain a stable situation, and then when the economic crisis should occur for thousands of years, it has not fallen behind...

So Ningwei is not interested in economics.As a mathematician, Ning Wei can easily find some laws from complex data, but he thinks this is useless, because the complexity of economics lies in its macro-structure directly related to the interests of all social classes in the world. Linking, under the premise of limited resources and unlimited desires, there will be various insurmountable obstacles in the practice of any economic theory.

Specifically, policies involving large-scale capital flows have always needed to balance the interests of all directions, and it is naturally difficult to achieve perfection.Anyone can do the theory, anyone can shout the slogan, but in the end it can't match the rule of 28.Wealth and resources are always concentrated in the head. The longer the industry exists, the more this is the case. Instead of thinking about how to optimize the economic structure, it is better to let new industries iterate quickly and keep the economy vibrant.

In short, in Ning Wei's view, studying these things is purely a joke in front of Fei Yuqing - imitating a prostitute artist.

Of course, this is just Ning Wei's opinion. Pure scientific research thinking is undoubtedly naive in the field of economics. It's just that he has the confidence.

And he is indeed working hard in this direction. For example, the appearance of March can already herald the emergence of some new industries and the elimination of backward industries. Of course, this process will be artificially lengthened. After all, no one will give up There will be some resistance to giving up one's own vested interests, but Ning Wei will not pay attention.

This is the benefit of cooperation. There will always be someone to share the resistance. When the sky falls, there will be someone who will stand up. He only needs to do a good job of research, and he can ignore other things at all, and someone will always give him an explanation.

For example, now he can still sit in front of the computer and watch Apple's press conference leisurely, and he can also let Sanyue help the public with science popularization. Those who are tall must not be as leisurely as he is.

……

This Apple Spring Festival Gala was actually very successful. Of course, this is more due to the appearance of ICARone. Of course, the eye-catching part is not only the Apple car, but the Siri of IPHONE15 has also undergone a revolutionary update. Apple has also given Siri a new definition. , a portable smart secretary for Apple users.

The update is not only the definition, but many more functions. For example, many things only need to be imported into the itinerary and authorized by Siri. This smart secretary will automatically help the mobile phone to compare the current round-trip air tickets and train travel prices, and the pushed prices are in line with expectations. Even as demonstrated by Google, the new generation of Siri can automatically call Mr. Tony in the address book, make an appointment for service time, and automatically set the itinerary...

Secondly, it also includes the translation function, and even Apple has launched an official Siri upgrade version, which only needs to cost some negligible silver taels. The upgraded Siri can help you solve extremely complicated math problems by taking a photo like many learning software. Can list out the detailed problem-solving process.

Anyone with a discerning eye can see that the technological innovation of Siri is basically based on the March Smart Platform.From this point of view, the 5000 million A-series CPUs that Apple sold to Huawei really did not sell at a loss, even when Tim Cook regretfully announced that for various reasons, the latest Siri service can only be used on the latest Iphone15 for the time being. However, the previous devices did not support upgrading to the latest version of Siri, and there was still thunderous applause at the scene.

In this regard, Ning Wei's understanding is that fruit fans are really rich...

It is a pity that Tim Cook did not directly announce the price of the first ICARone displayed at the press conference. Ning Wei actually wanted to see the cheering people at the scene, knowing that a car may cost tens of millions of dollars When selling, can you still retain that enthusiasm?

I was thinking about something, and the phone started vibrating again, Ning Wei glanced at it, and Yan Ming called.

Apple is holding a press conference, and one of the presidents of Huawei called. Does it feel too much pressure?

Thinking in his heart whether these were beneficial or not, Ning Wei connected the phone smoothly.

"Hey, Mr. Yan, how are you doing?"

"Haha, thanks to you recently, it's really good. By the way, Professor Ning, there has been a lot of trouble recently about your Yanbei University's opening of the Ning class. If the talents in the Ning class have ambitions in our The industry is developing, remember to recommend it for us. Don’t worry about the treatment, as long as it is a real talent, we will definitely offer the highest price in the industry.”

"Isn't it too early to say these things at this time? President Yan, let's talk about things first." After a few pleasantries as usual, Ning Wei abruptly got to the point.

"Well, I really want to ask you something, are you watching Apple's press conference now?"

"Huh? You know all about this?"

"Haha, those barrages of popular science... If you haven't been watching, Mr. Cook wouldn't be able to invite the great god March, right?"

This is the truth...

"Oh, yes, it is true that I asked March to do a simple science popularization for netizens. What is the advantage of a product, why is it designed in this way, the strengths of the design and the shortcomings that were sacrificed, I think it can make Consumers are more rational." Ning Wei said seriously.

In fact, everyone knows that, in fact, it is purely idle.

"Haha, yes, yes, this is very good, but the effect of the publicity is very good. I just called the boss of the live broadcast platform you are watching. After the science popularization started in March, the traffic of this Apple conference has been increasing sharply. Ah, from the beginning, there were only about 700 million viewers, and now the backstage shows that there are 3900 million viewers watching the live broadcast. Do you think that our new product launch conference will be held in mid-May, and let March come to help you popularize science. , this shouldn’t be a big problem, right?”

Hearing Lao Yan say this, Ning Wei was quite surprised.

He casually asked March to give everyone a popular science, and he could still attract everyone to watch the live broadcast of Apple's press conference?This made Ningwei feel a bit at a loss. He didn't ask Tim Cook for advertising fees, for example, he could send him an ICARone to offset the advertising fees.

That's the traffic of 3200 million people. Everyone sacrificed time watching short videos, playing games, and attracting people's attention to this press conference. After watching this press conference, these 3200 million people can start Secondary dissemination and drainage through private domain or public domain traffic, the publicity effect can directly explode.

how to say?This probably belongs to the kind of communication incident where there is no active pusher in the field of communication, and the communication event unexpectedly explodes. If you send him an ICARone, Apple will certainly not lose money, otherwise Yan Ming would not call him at this time.

"No problem. When the time comes, Mr. Yan, please explain which platform the live broadcast will be on, and I will ask Sanyue to cheer you on." Ning Wei agreed straightforwardly.

My own people don't need to worry about things like advertising fees.Moreover, Huawei does not release cars. Before the launch of the new generation of mobile phones, there will definitely be at least two directly delivered to him, and there is no need for him to ask for it.

"Then let's talk about it. When we prepare for cross-platform live broadcast, we will have several partners. At that time, please ask March to help us do barrage commentary on several platforms. The style is as good as today. Although I read the content of the explanations, they are actually too hard, and most people should not understand them at all, but everyone seems to like to watch them."

"This one……"

Ning Wei pondered for a moment and said: "If you want my suggestion, it's better to change the style. I guess the commentary in March this time can attract so many people mainly because it's a fresh look. The academic content that is too blunt is actually very boring. It’s hard to be attractive, you can promote it, and next time the commentary March will use the human language to post barrage, so the publicity effect should be better.”

"And if we can prepare in advance, let the video platform pre-open some permissions, let us help them make some adjustments to the existing barrage system, such as allowing my account to post some pictures exclusive to March, so that the effect It will be better. The hardcore part will directly use pictures, and the content part will try to have as few jerky terms as possible.”

"No problem, Professor Ning, leave the communication problem to us to deal with, and then I will trouble you to order the little princess of March."

"Princess March?" Ning Wei was a little puzzled.

"Huh? Don't you know that the animation tailored by our film industry department for March is about to be launched. The identity of March in the cartoon is the little princess of the cat civilization who is loved by thousands of people. I I took some time to read some, and the content is still very interesting. It’s probably about an evil force named Shuba who wants to wipe out all numbers and mathematical knowledge in the universe.”

"On the eve of the destruction of meow star civilization, meow star sacrificed many meow scientists and sent the little princess March to our earth, making it the last mathematical fire of meow star civilization. The year-old children became good friends. But the Shuba came again, so the little princess March and the children on the earth fought wits with the Shuba, defeated the Shuba, and saved the earth.”

"Then the children became scientists when they grew up, repaired the spaceship of the little princess in March, arrived at the meow planet, and restored the story of the meow star civilization. The cartoon not only praised friendship, but also interspersed a lot of simple mathematical knowledge, 1 You need to solve all kinds of math problems to fight against the number bully. The film industry plans to make a series. At present, only the first season has been released. After coming to the earth in March, I just met the children and fought against the number bullies. The story. By the way, the whole storyline was actually created by March."

Said in a strict tone.

Good guy, Ning Wei was taken aback by this plot, it's an entertaining and educational cartoon, this is really going to be filmed, Ning Wei thinks March can collect the copyright.But in fact, he really never thought that March could develop in the entertainment industry. He knew the news that the cartoon starring March was going to be launched, but he really didn't know that the story of this cartoon was created by March .

"Well, that, can you discuss it, Mr. Yan, the protagonist of this cartoon is named Ning, so that when my child is born and grows up, I can tell him that this cartoon is A present from his father."

"Haha, of course it's okay, the surname is Ning, it has to be Ning, you decide the name, none of us have any objections. It's just this gender...how about this cartoon being broadcast after your child is born?"

"It's not necessary, it's not necessary. I think the protagonists can be brothers and sisters. Anyway, we can always meet the right one. After all, fighting against the evil alien forces must require a team. Maybe they are all right. In case of twins, wait until Let’s change it in the second season.”

"It makes sense, okay, I will do as you said, and I will say hello to the film industry later, then this matter is settled."

"Well, it's a deal. I'll make March ready."

……

Hanging up the phone, Apple's press conference in the video is coming to an end. Ning Wei is savoring the story Yan Ming just told in his heart. The more he tastes, the more familiar he feels, but where does this familiarity come from? No brains.After all, from his birth to the present, he has never had the urge to create literature, let alone think about how to tell a story to children.

Fortunately, he can summon the little princess at any time, without even raising his hand, just call out to his notebook.

"March..."

"Swoosh..." Sanyue drove her small sports car and appeared in front of Ning Wei's eyes. The shape of the small sports car is also being updated. It looks a bit like the ICARone released by Apple just now, but Ning Wei thinks that if she really chooses this style , Tim Cook must pay him for advertising.

"Little princess?" Ning Wei asked, staring at the kitten on the screen.

"Meow……"

"Can you tell me what the meow star civilization is?"

"Meow, that is a cat planet, an original ecological planet built by great cats, the hometown of the little princess March..."

"Stop, I don't want you to tell me the story again, I just think the story you told me has a sense of familiarity..."

"Meow, in the dreams of human beings under the influence of the subconscious, there may be some things that have not been thought about in a fully awake state, so this familiarity may come from the fantasy in your subconscious dreams."

This sounded very reasonable, but Ning Wei once again touched his deepest hidden secret.

The experience of being enlightened overnight cannot be explained purely theoretically.He even thought about whether it might be a consciousness projection of a distant starry sky, but it was rejected according to the current scientific theory system.

According to the theory of relativity, the transmission speed of any information cannot exceed the speed of light. Some people think that quantum entanglement can realize super-light speed information transmission, but if you really understand quantum effects, you can understand that this is a joke, because quantum entanglement is simply a kind of Phenomena, at least with the current technical means, it is impossible for this kind of scene to transmit any information.

The consciousness projection of a huge amount of knowledge can be regarded as continuous information transmission in theory. It is unrealistic to transmit information of this scale through the distant starry sky and have fixed and precise recipients .If there is such a civilization, maybe the space research ships should have already reached the Earth-Moon system.

And this experience made Ning Wei more sensitive to fantasies than ordinary people, so he quickly accepted March's explanation psychologically.

Maybe he really had a similar dream without knowing it?Or subconsciously, he always has an interstellar dream?

If he accepts this setting, Ning Wei finds it strange that when he saw Master boasting on the Internet that he would immigrate a million people to Mars within five years, why did he feel that this guy was bragging and not drafting? It disgusted him, and he yearned for Mars colonization...

Ning Wei felt that he must have missed something, otherwise he shouldn't have such a complicated state of mind, and then inexplicably, he thought of a formula that he wrote down indiscriminately that day while classmate Jiang was playing the piano...

Almost subconsciously, Ning Wei retyped this formula on the computer: "k^2≥cΛGn-√(1-v^2)t"

"What do you think this formula means in March?"

"Meow……"

"Meow... what do you mean?"

"Meow... stands for database search, but no similar formula was found. For advanced analysis, if c stands for the speed of light, v stands for velocity, t stands for time, and Λ stands for the small operator... then G cannot simply represent gravity, because it is meaningless , n means that the meaning is not clear, k means that the meaning is not clear..."

"Oh!" Ning Wei shook his head regretfully, he had a feeling that this formula was very important, otherwise he wouldn't have popped out of his mind after realizing something, but the usefulness of this formula is As analyzed in March, it is necessary to find the clear meaning of several letters before knowing what it is useful for.

Mathematics is indeed the most complicated subject. Wait, maybe it's not just mathematics...what about physics?

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319 I'll Take You Fly

The relationship between mathematics and physics is actually very deep. For example, both subjects are very old subjects. Generally speaking, excellent physicists are also excellent mathematicians, such as Newton and Einstein. The reason is naturally very simple. Well, physics research is originally based on mathematics, and it is nonsense to study physics without understanding mathematics and relying on imagination.

But in terms of specific research, especially the research of modern science, the research methods of the two are actually different.The reason is also very simple. With the development of mathematics today, many branches have tested the abstract thinking ability of geniuses, and physics has always been a subject of studying natural phenomena.To put it simply, to study mathematics, you only need a notebook and a pen to build a world full of imagination.

Algebraic topology, algebraic geometry, algebraic number theory, category science, etc., are actually not just the study of "numbers", but the abstract study of relationships and structures.

But physics is to study specific things, whether it is classical physics, quantum physics, astromechanics or condensed matter physics, no matter which direction it is, the ultimate goal of physics has never changed, that is to study all the laws of motion in the material world, Find the essential reasons behind those strange natural phenomena.

So many times, physicists first observe some natural phenomenon, and then start to inquire about the reasons for this phenomenon, find out the laws, and use mathematical tools to describe their research results, and at the same time use mathematics to quantify them.

For example, Newton observed the effect of force and creatively put forward the theory of universal gravitation, but this is not enough, because words cannot accurately express this theory, so this genius figure creatively invented the calculus that has caused countless headaches to describe this accurately. Another example is that Maxwell invented the field form matter-electromagnetic waves and light waves, and later generations introduced the mathematical fiber bundle theory to describe it accurately; and then Einstein proposed the general theory of relativity and discovered gravitational waves. At this time, we need Riemannian geometry to make people realize the correctness of general relativity.

In the end, one of the dark clouds in physics, quantum physics, was born. At this time, scientists discovered that quantum physics can be based on linear algebra.In other words, if you really want to understand quantum physics in depth, you must first pass the level of linear algebra, because when you open those quantum physics textbooks, you will find that various matrices and mathematical physics equations often appear in mathematics, and It’s not simply telling you how counter-intuitive the double-slit interference experiment is, and how amazing quantum entanglement is. That’s popular science, not science.

In this way, every major revolution in physics has new mathematical theories added, and the two are therefore inseparable.

Fortunately, for Ning Wei, when the word physics appeared in his mind, mathematics was definitely not the threshold that hindered his research.And theoretically speaking, he is more qualified than anyone else to explore the truth of physics.

Even though physics has also developed to a very high level now, and various fields have embarked on the road of subdivision, the most mainstream research directions are nothing more than two categories, macro and micro.Of course, from the current development trend, more attention is paid to the microscopic level, especially the entanglement of quantum information and multi-qubits, because there is not even a complete set of mathematical theories that can describe or even name many-body quantum entanglement.

From this point of view, it is somewhat questionable that Google has directly announced that its quantum computer has taken the lead in the world and has mastered quantum hegemony.

Of course, the greatest ambition for physicists is still to establish a grand unified theory, unify all four basic forces affecting nature, namely strong force, weak force, electromagnetic force and universal gravitation, and establish a standard model to explain all basic forces in the universe. The particle interacts with it.

Obviously, this goal is still far away, and it is still unknown whether there is even such a basic theory.Because even though modern physics has developed to the point where many people are daunted, the nature of gravity is still vague. Whether it is Einstein's gravitational wave theory or the graviton that is predicted but not yet discovered, it seems that it is not enough to make everyone Everyone is convinced.

Very complex subject.

But Ning Wei felt that if he wanted to seriously understand the meaning of this inequality, he still needed to study this complicated subject.There is no doubt that this path is most likely to be correct, because in another parallel universe, this inequality was originally proposed by a Chinese quantum physicist, and it was named Ma Zhenhua's inequality.

Of course, despite the fact that this inequality is very simple, if we use our current understanding of quantum mechanics to clarify this inequality and form a paper, it will take thousands of pages.

For Ning Wei, he is just looking at this inequality with the eyes of a mathematician, and through some mathematical logic judgment, where should he start to analyze this inequality and find a way to solve it.

Then quantum physics came to mind again.

Well, that’s good. Speaking of which, Ning Wei has a basic understanding of quantum physics. This understanding is due to the fact that he went to the library and rented a book on the history of quantum physics when he was in Jiangnan University... and once appeared in his brain. Storm, as if he experienced the changes of the universe as a bystander, saw the magnificent and magical scenery at the micro level.

But Ning Wei felt that his intuition made sense, and in fact the microscopic level was actually very interesting.For example, scientists once believed that atoms were indivisible. After scientific development, especially the observation of equipment progress at the micro level, they realized that atoms are not the smallest unit of particles. Atoms also contain atomic nuclei and extranuclear electrons. At the same time, atomic nuclei are composed of protons and neutrons. constitute.