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Light Matter Young Chinese scientists find an innovative and fun way to popularize physics

- Yuan Yuan

As arcane physics theories buzz around the world after the 2019 Nobel Prize in Physics winners were announced, physicists and physics majors continue to try to popularize the mysteries of the world.

An inspiring example is a group of graduate and doctoral students from the Institute of Physics (IOP) of the Chinese Academy of Sciences (CAS), who have been making efforts to change the face of physics by dressing it up, reassembli­ng its fun parts and putting it all online.

Novel method

In 2014, Cheng Meng, a doctoral graduate from the institute, had the idea to make physics more fun through IOP’S official public account on Wechat, a popular social media app in China. Li Zhilin, an IOP doctoral student and winner of a campus contest to write an interestin­g article promoting physics, joined Cheng to form the initial team.

In the first year and a half, Cheng was in charge of updating articles to the account. “I spent every day looking for and editing articles to feed the account,” Cheng said.

“It was a lot of work.”

Li remarked, “Our initial goal was to make the institute’s public account more creative, doing away with the boring routine release of regular IOP news.”

Their work proved fruitful as the number of IOP account followers has grown steadily over the past five years and now stands at almost 1 million.

Li Xuanyi, 24, a doctoral student at the institute, followed the account when he was an undergradu­ate student. “The account had already gained some fame in its first

two years,” he said. “When I joined the team in 2016, we already had over 200,000 followers.”

Liu Guangxiu, a 25-year-old IOP doctoral student, was also an early follower of the account. “I knew the institute through its public account,” Liu said. “I was an undergradu­ate student at the time, making plans for further physics studies. I really liked the Wechat account and I would say it was the reason I chose this institute for my advanced studies.”

Right before Liu arrived at the institute in 2017, she got an email asking whether she was interested in joining the team in charge of maintainin­g IOP’S Wechat account. Ji Yu, a 24-year-old graduate student who enrolled in 2017, received the same email.

They proceeded to become the new blood of the team and quickly began editing articles. The team works out of a studio in the lab building and holds a meeting every Wednesday night. With the growing number of followers, the members decided to start expanding some of the columns.

“We had many followers asking a variety of questions, some very interestin­g, like why instant noodles are curly instead of straight,” Li said. “Some questions were quite similar, like what is fire.”

By answering these questions, they also help clear up rumors that circulate online. For example, as to whether it is necessary for pregnant women to wear radiation proof clothes, they clearly answered: absolutely not.

Eventually, they collected the questions and opened a Q&A column. “We compiled over 1,000 questions and related answers into a book titled One-minute Physics,” Liu said. “The book was published this year.”

Now, there are more than 20 members in the team. In March, the team decided to explore a new road - live streaming - on Bilibili, a popular Chinese video-sharing platform.

The idea grew from another column that teaches primary and middle school students how to conduct simple physics experiment­s.

“We normally made short videos for the experiment­s,” Li said. “While we were making the preparatio­ns, we suddenly had the idea to live stream the preparatio­n process. We thought it would be more dynamic and allow us to have more interactio­n with our followers online.”

Liu and Ji were chosen to be the hosts of the show. “This was a challenge for me as I am an introvert,” Liu said. “We didn’t know how to talk with the online audience and for the first several videos, we finished within half an hour.”

Now, they are veterans and quite animated and confident. On September 25, their online show lasted for more than two hours. The experiment was on the lightabsor­ption of liquid of different colors.

Today, they have half a million followers on Bilibili.

Beyond physics

“What we popularize with our platforms is not limited to physics, we promote all science knowledge,” Li Xuanyi said.

He recalled the first article he wrote on the IOP account about Italian physicist Ettore Majorana. “He made extraordin­ary achievemen­ts in physics, but disappeare­d in his 30s and was never heard from again,” Li Xuanyi said.

For him, mystery is the charm of physics. “You can always find something unknown. That is why it is so attractive to me,” he said.

Li Zhilin compared physics learning to treasure hunting. “You know there are treasures, but you don’t know exactly where they are,” he said. “You have to work hard and look for them.”

For Cheng, physics can provide an objective view of the world. “There are actually various misunderst­andings about physics. Some think that it is super complicate­d and has nothing to do with them. That is why there are many organizati­ons and people trying to popularize physics,” Cheng said.

But this can also lead to another extreme: Is physics as interestin­g and simple as shown in the group’s articles and videos?

“Of course not,” Cheng said. “For those who have spent years in labs, we know that the real face of physics is very serious. We just put some makeup on it and present it online to make it look more interestin­g to bring more people into the world of science. But this is far from the true picture.”

Cheng warned that those who plan to make physics their profession should be well prepared for this reality.

Yu Lu, a physicist and academicia­n with the CAS, agreed with Cheng. He wrote the preface to the team’s book. He explained that most of the questions and answers in the book can be read in one or two minutes, but people have to be clear that it’s not enough to understand the theories behind each phenomenon thoroughly; the short answers can’t possibly cover every aspect of the theory.

“A good question is like the start of an exploratio­n, a good answer is like a key to the world you are curious about but it is hardly the end of the exploratio­n,” Yu wrote in the preface. CA

 ??  ?? Liu Guangxiu (right) and Ji Yu (left), along with a team member, host a live-streaming show on Bilibili in Beijing on September 25
Liu Guangxiu (right) and Ji Yu (left), along with a team member, host a live-streaming show on Bilibili in Beijing on September 25
 ??  ?? Team members have a discussion during their weekly meeting at the lnstitute of Physics at CAS
Team members have a discussion during their weekly meeting at the lnstitute of Physics at CAS

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