Reporter: Zhang Xiaoxi and Han Xingtong
On September 3, the Hong Kong Convention and Exhibition Center was full of aerospace science and technology elements. On several huge upright cardboards, the dark blue night sky was dotted with stars. The animated version of the three astronauts Nie Haisheng, Liu Boming, and Tang Hongbo, each holding a hollow face The cute "little astronaut" smiled and waved.
This cardboard has become a stop for Hong Kong students waiting to enter the venue to "check in". They drilled behind the cardboard, showing smiling faces, and "interacting" with the astronauts first through this picture, starting the space journey.
In the afternoon of the same day, the high-profile young student representatives from Hong Kong and the Shenzhou XII crew on mission at the Tiangong space station officially launched the "Heaven and Earth Dialogue".
The "space travel trio"-Shenzhou 12 astronauts Nie Haisheng, Liu Boming and Tang Hongbo, had a cordial exchange with young students, and the atmosphere was very warm.
Astronauts show "space life"
"Hong Kong calls Shenzhou 12! Hong Kong calls Shenzhou 12!" Following the host’s call, three astronauts appeared on the screen. Nearly 300 Hong Kong young students, scientific and technological workers, and teachers were excited The astronaut waved his hands, and there was warm applause.
"Hello, students in Hong Kong! Hello, citizens of Hong Kong!" The three astronauts first greeted everyone via video connection.
Later Liu Boming said that the Tianhe core module is an "open day" for all Hong Kong citizens today, and he will serve as a "space tour guide" to show everyone around.
Liu Boming introduced the daily work of astronauts in the core module, and showed the structure of "space dining table" and "space kitchen", revealing the space life of "three rooms and one hall".
Hong Kong students actively ask questions
Next, enter the questioning session.
The third-year student of Mechanical Engineering of the University of Hong Kong Ma first asked: "The microgravity state of space is a very special experimental environment. Could you please introduce the space experiment done by Tiangong?"
Tang Hongbo replied that this time the space station will mainly carry out three types of experiments in weightless physics, aerospace medicine, and human factors engineering, using precious flight opportunities to study the special physical phenomena in the weightless environment and the effects of space flight on astronauts’ physical, mental, and operational behaviors. The influence of the characteristics of the movement, in order to better guarantee the long-term healthy work and life of people in space, and prepare for the opening of a second home for mankind.
Hong Kong Chuangzhi Middle School student Liang Fuqi asked: "Can you exercise in space? What kind of programs are there? Can you show it?"
Nie Haisheng replied that astronauts can not only exercise in space, but they must also exercise. This is a task to be completed.
Because astronauts are in a state of weightlessness in space, muscles will atrophy and cardiovascular function will decline for a long time, etc., long time will affect physical health and ability to work in orbit.
To this end, aerospace experts have specially developed a set of exercise equipment for astronauts, including "space bikes" and "space pressure devices".
Nie Haisheng also demonstrated on the spot how to use exercise equipment, the "space bike" can be transformed into a "hand bicycle", and also demonstrated the relaxation method of Tai Chi.
Nie Haisheng demonstrates the space "hand bicycle".
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Huang Jiayang, a Form 3 student at St. Paul’s Co-educational High School in Hong Kong, asked: “Where did the water you drink in space come from? How do you drink it? Can you show us it?”
Liu Boming humorously stated that although astronauts have long been "made into steel," they are still "physical bodies" and they are still inseparable from water, the source of life in space.
He said that water resources in space mainly come from water carried from the earth and recycled water.
Liu Boming also showed the PPT he made, telling how the space produces reclaimed water, and demonstrated the separation of reclaimed water.
Liu Boming demonstrates drinking water in space.
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Finally, Wang Yanhan of the Hong Kong China Foundation Middle School asked: "Is the earth beautiful after exiting the cabin? Can I see Hong Kong? Can I see other satellites outside the space station? Are the stars the same as the ground?"
Liu Boming replied that the Shenzhou 12 crew was lucky. Thinking back to the two extravehicular operations, the beauty of the earth and the magnificent scene have been recurring in his mind, just like a science fiction blockbuster.
The moment you open the cabin door and exit the cabin, it is not enough to describe it as "beautiful".
He saw a lot of beautiful scenery, including Hong Kong, the "little river bends to the south" Hong Kong.
Every star in the Milky Way is so shining, but they understand a truth. Only by shining on each other can the stars twinkle.
I hope that more Hong Kong friends will join the space team, the Chinese dream, the space dream, with you and me.
After the astronauts answered the questions of the young Hong Kong students, the Hong Kong audience and the three astronauts agreed to "goodbye on earth."
The three astronauts and the Hong Kong audience agreed to "Goodbye Earth".
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Dialogue with Beijing Aerospace Experts
On the same day, in addition to dialogue with the three astronauts of Shenzhou 12, young Hong Kong students also interacted with space experts in Beijing.
An 18-year-old Hong Kong student asked Yang Liwei, deputy chief designer of China’s manned space engineering and China’s first astronaut, “I was born the year you first entered space. I would like to ask you why you wanted to be a Astronaut, what do you think is the coolest part of the astronaut career?"
Yang Liwei answered questions from young Hong Kong students.
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Yang Liwei said that his initial dream was to become a pilot. After the college entrance examination at the age of 18, he realized this dream, and subsequently developed an interest in spaceflight.
At the time when the country started the manned space project, he was able to combine his love with the country's needs to become an astronaut, which also benefited from the improvement of the country's economy, technology and overall national strength.
Yang Liwei also mentioned that he had visited Hong Kong many times and had exchanges with many Hong Kong students.
From Shenzhou 5 to Shenzhou 12, astronauts will show some work and life scenes during each mission. The figures of these astronauts are all very cool, and the coolest moment he thinks is being the number one in China. When an astronaut went into space, on behalf of the country, it displayed the national flag and greeted all Chinese people.
Warm response from the event
In late June this year, Hong Kong welcomed a group of national aerospace scientists, and held an exhibition of Chinese scientists called "The Spirit of the Times". At that time, the Shenzhou 12 spacecraft was successfully launched. Many Hong Kong citizens, especially students, All are very concerned about the astronauts.
The "Heaven and Earth Dialogue"-"The Spirit of the Times Shines on the Xiangjiang River" activity of looking up to the stars and talking to the heavens continues the heat of previous space activities.
After the event, Liang Fuqi, a Form 4 student of Hong Kong Chuangzhi Middle School who was one of the on-site questioners, said that she was deeply satisfied with this exchange, which not only enhanced her aerospace knowledge, but also strengthened her "space dream".
"If there is a chance, I want to devote myself to the national aerospace industry." She said.
Student Chen of Qiu Zitian Memorial Middle School of Tung Wah Group of Hospitals in Hong Kong said that the astronaut's explanation of "space life" and the simultaneous on-orbit display solved many doubts for him, and also made him want to learn more about the research of aerospace technology.
"There are many young people in Hong Kong who are interested in science and technology like me," Chen said, hoping that more resources can be invested in the development of science and technology in Hong Kong in the future, so that young people in Hong Kong can also make a fortune in the field of science and technology.
Huang Jinliang, chairman of the Hong Kong Federation of Education Workers and vice chairman of the Hong Kong Federation of Science and Technology Innovation Education, said that the ability to achieve a "space-to-earth dialogue" shows that the state attaches great importance to Hong Kong, and the central government also places expectations on Hong Kong's youth.
He hoped that the young people of Hong Kong should cherish it and strive for the opportunity to participate in the development of the country's aerospace industry in the future.
The Chief Executive of the Hong Kong Special Administrative Region, Carrie Lam, also participated in the "Looking Up to the Stars and Talking to the Sky" activity of "The Spirit of the Times". In her speech, she expressed the hope that the young people in Hong Kong can be inspired by this event, with the dream of opening up the future, learning the spirit of astronauts, not afraid of failure on the road of scientific research, bravely exploring, achieving their ideals, and the future of Hong Kong and the country. Shining on the road of development.