Popular science short video circle powder million 72-year-old retired female professors play treasure chest to reveal the scientific world

Popular science short videos have millions of fans, and eggs, clothes hangers and coins are all "playing" in her hands-

72-year-old retired female professor plays "treasure chest" to reveal the scientific world.

"A raw egg and a cooked egg fell into the deep sea at the same time. Will they be squashed or crushed? " "The artificial sun1.200 million degrees Celsius lasted 10 1 sec! At such a high temperature, won't the surrounding devices burn without residue? " ..... interesting topic, full of scientific experiments. Recently, a 72-year-old popular science blogger became popular on the short video platform, and has had millions of fans so far.

With short gray hair, a signature vest and a pair of hanging-neck glasses, the blogger who is called "grandma of science" by netizens is Wu, a retired professor of Tongji University.

Wu Renren had been engaged in science popularization for 16 years before becoming a science popularization network. From 20 18, she contacted the short video platform and moved popular science to the internet. The props of "brain-opening", interesting demonstrations and vivid explanations made her a clear stream in the short video of popular science.

"In fact, just like grandma liu ran into the Grand View Garden. I am Grandma Wu who is fresh and curious about the scientific community everywhere. " Wu's initial intention of doing science popularization is to stimulate public interest in science in an interesting way. She always thought physics was interesting, but many students were "scared" by the exam. She wishes she could do something to bring about some changes.

What are cosmic rays like? A broom makes you understand in seconds.

Wu Renren, who appeared in the short video, has a silver hair and will show two tiger teeth when he smiles. Her account name is "Don't brush the questions", which means straightforward: you can learn physics well, explore the mysteries of the scientific world and enjoy the happiness of scientific thinking without brushing the questions.

Chaos pendulum perpetual motion machine, small model Stirling engine, Newton pendulum ... In addition to these professional experimental gadgets and small models, the "toys" in Grandma Wu's "treasure chest" are simply varied-in her hands, many daily necessities, whether eggs, clothes hangers or coins, can be transformed into experimental equipment for electromechanical experiments.

What do cosmic rays look like in space? Grandma Wu holds a bamboo broom in her right hand and strokes her left hand from the broom handle to the end of her beard. Netizens suddenly understood: its trajectory is like a broom, from energy concentration to gradual weakening and dispersion.

Not long ago, the Shenzhou XIII manned spacecraft was successfully launched, and many children were curious. How did the rocket fly into the sky? To this end, Wu Renren specially filmed a video to let everyone know that the speed of rocket flight comes from the reaction force of rocket combustion by blowing balloons. Then, using the downward injection experiment of liquid nitrogen, children can intuitively feel how much fuel is needed to break through the speed of the first universe.

In addition to combining current hot topics, Wu Renren often subverts people's cognition with science for things that are used to in life.

Physics is interesting. Don't let children "be afraid" in the exam.

The reason why she can play with popular science in this way is largely related to Wu's experience-she has been engaged in young people's popular science work 16 years since she came to Tongji University's physics practice workstation.

Before his retirement, he was a professor of physics department of Tongji University, director of physics demonstration laboratory and director of teaching and research section. In 20001year, he won the first prize of national teaching achievement, and in 2005, he won the second prize of Shanghai teaching achievement. He is also the first author of the series of online textbooks of college physics -2 1 century, and the online course of physics in engineering universities.

In the process of teaching, Wu found that many students were "afraid" of physics. Even college students majoring in physics are good at doing problems but don't really love physics. Why are students afraid of physics? Perhaps, the fear of difficulty is not that physics is really difficult, but that I don't know much; So, what is the root of students' ignorance? According to his own teaching practice, Wu Ren wrote the answer in his mind: perhaps, it is because of his lack of curiosity about the objective world.

When thinking about and solving these educational problems, Wu Renren couldn't help thinking of his childhood. It seemed effortless and natural for her to fall in love with science at that time. Wu's father is the first generation astronaut in New China. His usual work is mysterious and busy, and he can often go home to accompany his children only on Sundays. But it was these short hours that opened Wu's yearning for physics and science.

Under the leadership of her father, she and her brother experienced life together, observing and thinking about some small daily problems. For example, when cooking jiaozi, why does jiaozi float? The wet handkerchief sticks to the glass, why doesn't it fall off? When washing socks, do you wash them once with soapy water or rub them piece by piece? It is this way of entertaining and entertaining that, inspired by intangible thinking, has become an inexhaustible "mineral deposit" for Wu in the future, and has also made her have a lifelong fate with physics.

Interest is the best teacher. Later, Wu Renren not only set up a physics exploration laboratory with colleagues from Tongji University, but also got the support of Shanghai Science and Technology Commission and Education Commission, and established a physics practice workstation of Tongji University. This is the first university laboratory open to teenagers in Shanghai, and Wu Ren is the first stationmaster. She and student volunteers organized and planned a series of interesting physical activities, which were deeply loved by teenagers.

In order to create something new in the video, I often "turn around" with young people.

Attract more children to participate in scientific experiments and stimulate the spirit of inquiry, which is the source of motivation for Wu people to stick to popular science.

However, it is by no means easy to do a good job in physics science popularization. It is even more difficult to give children popular science. How to "translate" complex physical principles and difficult physical terms in plain language? This requires not only profound physical knowledge, but also strong language expression and experimental demonstration ability. After "asking for advice" from young people, Wu Renren accepted the suggestion and broke into the short video platform.

With the help of short videos, magical experimental pictures can be presented more vividly, and special effects, pictures, text descriptions and other materials can be added to make scientific experiments look more interesting.

However, unlike face-to-face lectures with students in school classrooms, Wu Ren needs to convey the content as quickly, efficiently, vividly and interestingly as possible in a very limited time.

She remembers that an adult netizen contacted her actively and asked about the physics problems that bothered her for many years in middle school. Re-ignited the curiosity of many people to explore scientific issues, which made "Grandma Wu" sincerely happy.

Wu Shuo, the reason why he named his collection of popular science short videos "Grandma" is because many of his former students now have their own children. When they meet grandma, they always run after her. "Later, everyone followed suit and named me' Science Grandma'." Today, with millions of fans, she still takes science as her responsibility. She said, "As long as I have energy, I will keep doing it."