Yangtze River ** Wuhan Client on February 26 (reporter Guo Lixia correspondent Xu Ying) "Students, it is about to be the time to witness the miracle, are you ready?" On the morning of February 26, in the first class of Honggangcheng Primary School in Qingshan District, science teacher Liu Ming led the students of the school to dance the "Science and Technology Dragon" together, explore the secret of the balloon Ferris wheel, and start the new semester with a unique science ideological and political class.
In the first lesson of the school year, Honggangcheng Primary School in Qingshan District danced "Kechuang Dragon". Photo by correspondent Xu Ying.
Teacher Liu Ming and student assistants demonstrated the miracle of the "Balloon Ferris Wheel". The balloon circle is in the hands of the students, and as soon as it is blown with a hair dryer, a colorful "Ferris wheel" is formed, which rolls in the air in an orderly manner, causing applause from the students inside and outside the venue. Then, Liu Ming used a slightly larger hair dryer to spin the "giant" balloon circle with a diameter of nearly 2 meters, and the children took photos in front of the balloon circle.
It's amazing! "Teacher, why does the balloon circle spin? Let's find out! In the first lesson, Liu Ming explained to the students the romantic Kangda effect and Bernoulli's principle: when the air flow generated by the hair dryer passes through the balloon wheel, it will produce an "attached wall" effect, flowing along the convex surface of the balloon wheel, thereby driving the surrounding air flow, so that the balloon wheel can not only maintain suspension, but also rotate on its own.
In the first lesson of the school year, Honggangcheng Primary School in Qingshan District danced "Kechuang Dragon". Photo by correspondent Xu Ying.
There is also infinite wisdom behind the colorful balloons, and I feel the charm of science! Zhou Yucheng, a student of class 403, is the little assistant of this science ideological and political class, from the experimental preparation before class to the performance in class, he and the teacher completed it together, and together with his friends, he gained full scientific and technological energy.
At the event, Bao Liurui, who had just been elected as a good boy in the new era of Hubei Province in 2023, called on all students to use science and technology to light up their dreams and be good teenagers in the new era.
At the beginning of the new semester, Chen Yamin, principal of Honggangcheng Primary School, sent a message to the students: "I hope that everyone will look forward to the new semester and the new future together with the spirit of science and technology to create the future." ”
Editor: Jin Xin].
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