Some time ago, on the Internet, there was a piece of news that was hotly discussed, the publisher of this news, is a reporter in the United States, named Andrew Jones, his main interview, report content, generally related to China's aerospace, it can be said that he has always been very concerned about the development of China's aerospace, but not to objectively publicize and report on China's aerospace from the front, but to find a place where China's aerospace is "inferior to people".
For example, this time, Andrew Jones did not know from what channel, obtained a PPT photo displayed at the internal meeting of China's aerospace, and from this PPT, it can be seen that China Aerospace intends to develop a reusable secondary rocket, in this regard, Andrew Jones said that China's aerospace is engaged in plagiarism, and the object of plagiarism is Musk's starship.
So, what exactly does Musk's starship look like?
Speaking of Musk, we all know that the starships he developed are mainly to transport humans to different planets, such as the moon and Mars, of course, this is something that will be achieved in the future.
In order to give everyone the opportunity to go to space, Musk has always been "compressed cost" in the development of starships, and rockets are more focused on reuse.
When the rocket is assembled, in fact, the rocket is divided into many stages, and the fuel and engine of each stage of the rocket are independent, and after the successful launch, each stage of the rocket will automatically fall off until it reaches the destination smoothly.
And Musk's starship, the most important part of the spacecraft cabin, is the secondary rocket, when it flies away from the earth and arrives at the destination, it will refill the fuel, and then take off again under the action of power, and return to the earth again, and this process will complete the reuse of the second stage rocket, that is, the starship.
Naturally, because the spaceship can be used many times, it is like an airplane, naturally, the cost has come down a lot, if it is really successful, then, the future of human beings can really use a lower price to achieve space travel.
So, is China Aerospace really copying Musk's starship?
Andrew Jones mentioned that China Aerospace not only wants to develop reusable secondary rockets like starships, but also uses liquid oxygen methane in terms of fuel innovation, just like starships.
What is "liquid methane"? This is a very easy to form, extract a new type of fuel, in the future, if the human spacecraft can really travel to and from the moon, Mars, then, when returning, is not necessary to be on the earth in advance, ready to return to the fuel, can be directly on the moon, Mars local materials, so that the cost will become lower.
And on the PPT displayed by Andrew Jones, in addition to the rocket form designed by China Aerospace, which does look a little similar to the starship, and in terms of fuel use, liquid oxygen methane is indeed mentioned, naturally, as soon as Andrew Jones released this news, many foreigners who are not friendly to China in themselves have "fried the pan" and thought that this was blatant plagiarism.
So, what is the truth? Is China's aerospace really "inferior to human"? The answer, of course, is no, as we mentioned above, this PPT published by Andrew Jones is just one of the ones displayed at an internal seminar of China Aerospace, and it is not the final draft, but only for everyone to discuss research.
To put it bluntly, this is a bit like when we are discussing the plan, we will give some examples worth learning from, and then we will analyze the feasibility and pros and cons, etc. To put it bluntly, this PPT itself does not have any meaning, but is deliberately used by Andrew Jones to "bo eyeballs".
And it is worth mentioning that as early as 2017, China Aerospace began to study "reusable" carrier rockets, the purpose is to carry out manned moon landings, manned fires, and the construction of lunar bases and Mars bases, so that astronauts, and even ordinary people can better travel to and from space.
And the reusable aircraft itself is not Musk's original, because as early as a few decades ago, the United States had a reusable space shuttle, the purpose is to perform space missions can save costs, but later because of frequent problems, it was deactivated.
In addition, from the perspective of the development of China's aerospace, it is obvious that Musk's SpaceX and we are not comparable, Andrew Jones compared China's aerospace to SpaceX, which is actually demeaning to us, of course, no matter what he says, we are good to be ourselves, what do you think?
Now, it is the crucial time for the development of the mainland, in order to win the future international competition, we must vigorously develop high technology and develop basic science, which requires a large number of high-tech talents, only top scientific and technological talents can shoulder the heavy responsibility of catching up with foreign science and technology from the source, and gradually gain a leading edge.
Professor Qiu Chengtong, a famous Chinese mathematician, believes that if China wants to become a leading country in the world, it must lay a good foundation, the most important thing is science and technology, and the success of science and technology must have a foundation, this foundation is theoretical science, however, the most critical thing in theoretical science is mathematics, which coincides with Ren Zhengfei's point of view.
Professor Qiu Chengtong also questioned the current mathematics education in the mainland, saying that such education violates the essence of mathematics, if it continues to develop in this way, it will really bury mathematical talents, and mathematics will be taught in this way, and it will be regressed for at least twenty years.
The current teaching methods of primary and secondary school students are generally cramming, lacking the process of exploring and studying mathematics, so that the students who are taught will only do a mathematical problem and cope with mathematical examinations, and have been allowing children to brush problems and engage in problem sea tactics, so that children lose their creativity and lose interest in active learning in mathematics.
However, to change this situation, it is not achievable overnight. Parents need to be less utilitarian and more fun when educating their children, so that children can realize the value of science itself and the importance of science to the development of the country.
In this regard, we have to mention the famous educator Liu Xuanyu, who is the founder of China's mathematical science popularization works and a famous mathematical master on the mainland, Professor Yang Zhenning, Hua Luogeng, Chen Jingrun, Gu Chaohao, etc. have all praised Mr. Liu Xuanyu's masterpieces and given them high praise.
Professor Yang Zhenyu said that Liu Xuanyu is a mathematician who has written a lot of interesting little stories about mathematics.
Among the mathematical works created by Mr. Liu Xuanyu, the "Three Books of Mathematics" can be called classic mathematical popular science works, covering a total of 3 classic mathematical works, namely "Mr. Ma on Arithmetic", "Mathematical Fun" and "The Garden of Mathematics".
The famous mathematician Gu Chaohao commented on this set of books: "The most influential thing for me is Liu Xuanyu's "The Garden of Mathematics". Its introduction to the initial ideas of calculus and set theory took me into a whole new world. ”
The three books start with fun math, take your child step by step to build an interest in math, and then explain the concepts of functions, equations, variables, calculus, and related applications through humorous passages.
Written by the author's ingenious methods, as long as those who have studied elementary algebra and geometry, they will read and master it easily and effortlessly, so this set of books can also be used as an important self-study book for primary and secondary school students.
It can be said that after reading this set of books, there is no need to worry about mathematics in elementary and junior high schools. Be able to help their children build good mathematical thinking skills and stimulate interest in learning all subjects.