2022年1月17日

Six million netizens flocked to the classroom to learn geology

At 19:30 PM on November 23, the third issue of “Academician lecture of Science and Innovation China” was online in Tiktok. The guest of this issue is Jiaqi Liu, a famous Chinese volcanologist and Quaternary geologist, academician of Chinese Academy of Sciences. Within 24 hours, more than 6 million netizens flocked to liu’s classroom to learn about “unpopular geology.” Academician Jiaqi Liu said that using short videos to spread knowledge is a very good form of innovation. “The number of millions of people is beyond my imagination.” Netizens responded, “I can’t imagine that I can take an academician class in my life.”

Academician Jiaqi Lau has been engaged in geological research for many years and has traveled all over the seven continents and five oceans. It is reported that Academician Liu has visited changbai Mountain ten times, Qinghai-Tibet Plateau seven times, Arctic three times and Antarctic two times, visited and inspected more than 60 countries and regions, and was the first to find out the spatial and temporal distribution and petrogeochemical characteristics of China’s volcanoes, making the research on the rule of Cenozoic volcanic activity in China reach the international level. In the programme, Prof. Lau shared his knowledge of earth science, his experience of working in geological sciences, and his life story.

“Man is insignificant to the universe, the earth and nature. Everyone’s life time is very short, even a few decades or even a hundred years, for the development of the whole earth, it is really a short moment.” According to Liu, the earth is 4.6 billion years old, and if you shrink it to 24 hours a day, you would have moved one minute and 17 seconds ahead of zero. So, in the course of the evolution of the earth, human beings are tossing and turning.

Academician Liu Jiaqi has been 80 years old this year, laughing that he is “after 80”, he still maintains the passion and pursuit of scientific research, “I am now ‘after 80’, but is the last ‘after 80′”. In his speech, Prof. Lau stressed that geology, which seems to be out of favor, actually has a close relationship with “hot” disciplines such as aerospace engineering. He even jokingly said, “They are not convinced, spacecraft in the sky you learn geology to command, we do not care about the sky, but we have to do what up. Where you drop it, what kind of sample you take when you drop it, how you take it, that’s all up to us. A lot of samples from the moon are being analyzed here.” More than 1,700 lunar soil samples have been collected from the moon, weighing less than 2 kilograms in total, “but each one is more precious than gold,” Liu said.

Geological science has no national boundaries, and for Academician Liu Jiaqi, it is common to run around the world. From the Arctic to the Antarctic, from the Rift Valley to Lop Nur, China’s no man’s land, he shared what he had seen and heard during decades of scientific research. In East Africa, the team employed local people as armed escorts to ensure safety. In order to ensure the smooth progress of his scientific expeditions on the Qinghai-Tibet Plateau, Liu insisted on not using oxygen tanks. “How much oxygen will you have to breathe if you work there for ten days and a half a month? Let alone how much money will it cost?

Much of Prof. Lau’s research is related to volcanoes. He introduced that in addition to the release of heat, volcanoes also erupt out a large number of ash and gas, large-scale release into the atmosphere space to form an aerosol layer to produce “parasol effect”, thus blocking the heat of solar radiation directly to the earth’s surface, so that the earth’s surface can not receive the sun. 1815. Mount Tangbura in Indonesia erupts in the largest eruption ever recorded. It creates a layer of aerosols that almost fills the globe. So, by 1816, almost a year without a summer, the world was in a cold, dark place.

In addition, Academician Jiaqi Liu also shared the entire growth process from primary school to graduate study in the Chinese Academy of Sciences, engaged in geological science. He believed that no matter doing science or other work, we should not follow rules and regulations in doing anything. We should have the courage to innovate. Innovation is the essence of science. In this process, we have to devote ourselves to work and persevere. “We have studied the Earth, and at the same time we have studied other planets, including Mars and the moon, and we may even go to Jupiter or other planets.”

Also innovative is coming to short video platforms like Douyin to spread scientific knowledge in an innovative way. Academician Liu Jiaqi said that popularization of science in the form of short videos is a very good form of scientific and technological innovation. In the past, the dissemination of scientific and technological knowledge was usually completed in the form of blackboard and books. “Now, with the development of science and technology, there are short videos. It’s very vivid and realistic, and it’s more convenient for users. We want to make it better in the future.” Academician Liu also said, “I recently learned that millions of people will watch a lecture through short video, which IS beyond my imagination.” He said that in the past, the audience was limited in the form of blackboard. “Short video has a very large spread, and the scale and effect are better.”

At the end of the program, Academician Liu Jiaqi offered his best wishes to the young people. He said that youth is the most precious and productive period of life. Young people should take advantage of their strong energy, intelligence and ability, cherish their time and life, and make special contributions. “Don’t feel that you are young now and have to do a lot of things later. You younger generation are the hope and future of our country.”

It is understood that “Academician lecture” column is created by the China Association for Science and Technology “KEChuang China” and Douyin joint production. The column invites well-known domestic academicians to teach all kinds of top scientific and technological knowledge. Previously, MAO Ming, an academician of the Chinese Academy of Sciences and a weapons expert, and Xu Zhilei, an academician of the Chinese Academy of Engineering and a weapons expert, have brought two episodes of wonderful sharing, and the overall broadcast volume has broken through 10 million. At present, the program content of Academician Liu Jiaqi has been online on The Platform Tiktok. Users can search “Academician lecture” on the platform to watch it.

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