Have you ever visited "Teen Mode"?
Did you know it got better?
At the beginning of the school year on September 1 this year, together with the China Soong Ching Ling Foundation, we invited many scientists and artists to give everyone a hearty meal of minds in the "youth mode".
The "youth mode" spanning WeChat, Tencent Video, Tencent Weishi, QQ Music and other products is growing into a "good-looking", "fun" and "studious" youth science products.
And today, we invited three scientists, and the second season of "Master Lecture Hall" was officially launched.
The first chief designer of the Shenzhou spacecraft
Qi Fa Xuan
Talk to you about "heaven", the "sky" of spaceflight
Qi Faxuan, an academician of the Chinese Academy of Engineering and the first chief designer of the Shenzhou spacecraft, answered a question that many people may not have thought about - why "heaven"?
When we open the textbook and read the news, we can see that people have many names for this field: space, space, universe...
However, Mr. Qian Xuesen, the founder of China's aerospace industry, said:
"We Chinese, and if we want to give a name with Chinese characteristics, we will call it 'Tian.'"
So we Chinese, the official name is not called astronaut, called astronaut.
Since ancient times, "heaven" in Chinese culture, is the unknown, is the power, is the time, is the stars... The glyph itself is a symbol of man's relationship with nature.
Therefore, "aerospace" is a scientific expression, but also a Chinese romance.
Dongfanghong 1, making China the fifth country in the world with the ability to send satellites into the sky;
Shenzhou 5 makes China the third country in the world that can send people to heaven;
And soon, "Tiangong" will also make us the third country in the world to build a space station by ourselves.
At the end of talking about "heaven", Mr. Qi FaXuan said with deep affection:
"China is now a space power, and now it is moving towards a space power, and it needs a large number of young, dreamy, dedicated people — you are these people." You are the followers now, and I hope you are all participants in the future. ”
The first chief scientist of China's lunar exploration project
Ouyang ziyuan
With you reward "moon", "moon" of the moon
Ouyang Ziyuan, an academician of the Chinese Academy of Sciences and the first chief scientist of China's lunar exploration project, sent a gift of the future to friends big and small - a "moon" ... ???
To be precise, it is a future lunar research station.
Why go to the moon? Because it is too ideal as a test site, it is also particularly close:
If you watch the Beijing Winter Olympics on the moon, the delay is only 1.3 seconds. (Whose "internet speed" is worse than the moon raises a hand?) ）
Of course, scientists are interested in the moon, not just because it has a "good signal."
For example, the vacuum environment on the moon and the temperature difference of nearly 300 degrees between day and night, although it can not live in people, but for some special materials, biological products and even drugs, it is the best environment to test the reaction.
For example, the gravitational pull of the moon is one-sixth of that of the earth, if you go to Mars or other planets in the future, starting from the moon, will you save a lot of energy for launching rockets?
Looking forward to such a future lunar research station, Academician Ouyang said:
"Dear children, I have spoken of some good hopes for the future of lunar exploration... I hope that the seed of such a good wish is deeply buried in everyone's heart, and when you grow up, this seed will surely sprout and grow and become a towering tree. ”
Director of the Institute of High Energy Physics, Chinese Academy of Sciences
Wang Yifang
Talk to you about "reason", the "reason" of physics
Wang Yifang, an academician of the Chinese Academy of Sciences and director of the Institute of High Energy Physics of the Chinese Academy of Sciences, redefined "ordinary" from the beginning: "I am just an ordinary person - just hoping to do one thing better than others can't do better than me."
It can't be said that he was "Versailles": in 2012, the Daya Bay Neutrino Project, which he led, discovered a new neutrino oscillation pattern, which was hailed as one of the most important physics achievements in China.
What are neutrinos????
Simply put, it is one of the most basic particles that make up the physical world.
But it's special, not charged, and has little interaction. So whether it is the human body, the earth or the sun, you can wear it when you want to wear it, and it is almost undetectable, just like the "ghost".
So how to catch such a "ghost"?
Here, the tool used by our "ghost catcher" is called the "photomultiplier tube".
It is like a doll machine, "grasping" a weak light signal will react and convert into an electrical signal.
This tool was born in the 1930s, but to find neutrinos, the existing tools are certainly not enough.
Academicians said that they began the development of photomultiplier tubes 7 years before the jiangmen neutrino experimental project officially began.
From the material to the process, we have overcome various difficulties and benefited from the overall improvement of China's industrial level, and finally have the ability to make the world's best photodetector parts.
The "ghost particle" is very ethereal and wonderful, but to grasp it, you can only rely on the bits and pieces of down-to-earth.
In the view of Academician Wang Yifang, this is the charm of physics:
"All theories, if you think about it carefully, are very logical, step by step derivations have a solid foundation, and there are reliable experimental verifications; at the same time, a simple formula, a simple theory, can describe such a complex world so accurately, and probably no second subject field can do this." 」
In addition to the simple and vivid words of the three academicians, in order to let the young friends better understand these scientific knowledge, the "Master Lecture Hall" also used various methods such as animation illustrations, fun experiments, and customized gifts to make these ten minutes more interesting. (So much so that I can't see enough)
More importantly, in addition to scientific knowledge, we hope that through the "Master Lecture Hall", we hope to continue to inspire and encourage young people to maintain their curiosity and love for scientific principles and the mysteries of the universe.
At the same time, as the "masters" say, the hopes and tasks of the future are in the children, and their own voice is the most important.
If the "youth mode" is to send children good cooking dishes, then two days ago, Tencent opened the annual "Youth Science Highlights List" selection activity, which is a "buffet" for children.
This "optional menu" brings together 20 of the world's most cutting-edge scientific breakthroughs this year.
For example, the following are very interesting, slippery left and right to see
From astronomy and geosciences, life sciences, mathematical physics to new chemical materials, every topic is both scientific and interesting.
Teenagers across the country can act as "science recommendation officers" and vote for the scientific breakthroughs they are most interested in.
Whether it is the "heavenly palace", Mars exploration such as "tall" exploration, or "obese genes" and other topics closely related to life, who can finally appear on the annual "Youth Science Highlights List" is the final decision of teenagers.
At the 4th Tencent Youth Science Conference held in 2022, we will officially reveal the answer.
From the "Science Watch List" to the "Master Lecture Hall for Children", we hope to connect more celebrities, top institutions and other social resources, and output more high-quality content as "scientific gifts for children" through various platforms, including "Youth Mode".
With one pair of eyes lit up by science, there will be more hope for the future of mankind.