On the afternoon of April 22, Zhang Jingzhong, academician of the Chinese Academy of Sciences and director of the Institute of Computer Education Software of Guangzhou University, brought a vivid mathematics lesson to students at the 2024 World Forum on Children's Development.
"Mathematics is often bad because it complicates simple problems. Zhang Jingzhong told the students a story about "Achilles can't catch up with the tortoise": let the tortoise race with Achilles, Achilles is 10 times faster than the tortoise, and the tortoise starts running 1,000 meters in front of Achilles. When the race starts, if Achilles runs 1000 meters, the turtle is 100 meters ahead of him, when Achilles finishes the next 100 meters, the turtle is still 10 meters ahead of him, and when Achilles runs the next 10 meters, the turtle is still 1 meter ahead of him...... In this way, Achilles will never be able to catch up with the turtle.
Zhang Jingzhong, academician of the Chinese Academy of Sciences, shared the topic of "Thinking and Language".
But is this really the case?" "Everyone should pay attention, we must first figure out what it means to catch up. Zhang Jingzhong told the students that mathematics pays more attention to thinking and language, thinking is to discuss problems with oneself, and it is necessary to use accurate language to describe the problem, if the semantics are wrong or vague, they will think wrong or can't figure it out.
"How can I make learning math as easy as playing a game?" asked a student at the scene. Zhang Jingzhong said: "I have been thinking about this question for more than 40 years, but in fact, mathematics has become simpler and simpler in the process of continuous development. Problems that adults used to be confused about can now be solved by many elementary school students. ”
Zhang Jingzhong said that everyone can learn mathematics well, but it takes different time and energy, "the problems that you don't understand at the beginning can be done repeatedly, and you will find some good ideas from them."
At the same time, Jiang Ying, a professor at the School of Physics of Peking University, Du Ruxu, an academician of the Canadian Academy of Engineering, and Chen Yilun, an associate professor at the School of Atmospheric Sciences of Sun Yat-sen University, respectively brought shares entitled "Exploring the Microscopic Water World", "From Artificial to Artificial Intelligence" and "The Mystery of Typhoon".
Du Ruxu, academician of the Canadian Academy of Engineering, shared "from artificial to artificial intelligence".
"None of the current largest earthquakes (magnitude 8.5) release as much energy as a full-fledged typhoon would release in a single day. In the open class, Chen Yilun told the students about the "power" of typhoons. He introduced that the wind force at the center of the typhoon can reach the speed of high-speed rail.
How are some typhoons named "individual" named?
Chen Yilun introduced that in 1997, the Typhoon Committee of the World Meteorological Organization decided that tropical cyclones in the Northwest Pacific and the South China Sea should be named with Asian style, and established a new naming table.
There are a total of 140 names on the typhoon naming list, with 10 names provided by each of the 14 member countries or regions. Chinese names include Dragon King, Wukong, Jade Rabbit, Haiyan, Fengshen, Poseidon, Seahorse, and Begonia, among others. "These names are not set in stone. It is deleted when a typhoon causes a particularly significant disaster or casualty. Chen Yilun said.
Chen Yilun, associate professor at the School of Atmospheric Sciences at Sun Yat-sen University, shared "The Mystery of Typhoons".
"In the past, I only knew that the typhoon was more dangerous and we had to suspend classes, but now I know that the typhoon is so powerful. Zhang, a student from the High School Affiliated to Guangzhou University, who actively asked questions at the scene, said, "Some common phenomena actually contain profound knowledge behind them, which is very interesting. ”
【Text】Southern + Reporter Liu Hanneng
[Picture] Southern + reporter Xu Shuzhi
【Authors】 Liu Hanneng;Xu Shuzhi
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