"Thousands of families always trade new peaches for old ones every day." In all parts of China, there is a tradition of posting Spring Festival couplets on New Year's Day. However, although the couplets are small, it is not so easy to paste them well. If they are not careful, they will paste it again. It often takes two and a half hours for some clubs to post Spring Festival couplets. In Foshan Xia Lang Primary School, Zheng Jiaer, a sixth-grade student, invented an artifact to paste couplets, which can be completed in one step. With this little invention, Zheng Jiaer and his classmates recently boarded the stage of CCTV and participated in the recording of the program "Watch My Seventy-two Changes" on CCTV Children's Channel.
Generate had a whim when posting the certificate of merit.
Just started school in September last year, Zheng Jiaer helped the teacher to post awards in the classroom. The snow-white wall is high and slippery. Zheng Jiaer couldn't find a ladder, so he had to move a table, with glue in one hand and certificate in the other, and slowly stick it on the wall. It was sultry in Foshan in September, and she managed to post the card. At this point, she was sweating and panting, and sat down to rest.
Looking at the certificate posted on the wall, Zheng Jiaer couldn't help thinking, is there any way to post the paper on the wall in one breath? "If only there was a tool to paste couplets directly." Zheng Jiaer remembers that construction workers used to paint slowly. Later, people invented a brush with a long cylindrical paint tube, which improved the efficiency of painting walls at once. Can you invent a tool to "brush" couplets directly on the wall?
Zheng Jiaer usually likes to make some small inventions. She told the idea to xu teacher, who is in charge of teaching science. Xu teacher asked her to design a preliminary idea first, and then continue to improve it.
Invented the "artifact" through repeated experiments.
Soon, Zheng Jiaer designed an early version of the "Artifact of Sticking Couplets". According to her idea, pasting couplets can be divided into three steps, first pasting glue, then spreading the couplets flat, and finally pasting them. She designed three long poles, one of which can be painted on the wall with glue, one with a roller and couplets at the top, and the last with a sponge pad at the top, which simulates a human hand pressing the couplets tightly against the wall.
With the help of xu teacher, Zheng Jiaer began to improve the "couplet artifact". For convenience, the rubber brush, the cylinder for mounting couplets and the brush for pressing couplets are all concentrated on a long rod. After many experiments, she also gave up the soft paper tube and used plastic water pipes to make couplets and rubber brushes.
In order to obtain raw materials, she also bought an old bicycle at the scrap collection station, took apart the parts on the bicycle and applied them to her invention.
In the end, Zheng Jiaer's couplet artifact was declared successful. When in use, just roll the couplets and put them in the couplets cylinder, leaving only a short section outside the cylinder, and then pour glue on the glue brush. Subsequently, the person who posted the couplets painted glue on the wall, posted a section of couplets on the wall, and then pressed the couplets with the pressure couplets. Through laser vertical calibration, the user can grasp the long pole in his hand and brush it down hard. Only one person is needed to stick the couplet firmly.
Zheng Jiaer said that with such an artifact, couplets can be pasted in about one minute.
Participate in the provincial competition and be invited to board CCTV.
On March 30th this year, Zheng Jiaer took part in the 33rd Guangdong Youth Science and Technology Competition with his "couplet artifact" and won the first prize. During the exhibition, Zheng Jiaer's "Artifact of Sticking Couplets" won the favor of a judge. Under his recommendation, Zheng Jiaer received an invitation letter from the CCTV Children's Channel "Watch My Seventy-two Changes" program group in early April.
The CCTV film crew went to Xia Lang Primary School where Zheng Jiaer was located for pre-shooting. Then, led by xu teacher, Zheng Jiaer and his classmates came to Beijing. In order to bring the couplet artifact to Beijing smoothly, Mr. Xu and Mr. Zheng Jiaer disassembled it into several parts and shipped it to Beijing, but before the program started shooting, an unexpected thing happened.
In order to ensure the shooting effect, CCTV has prepared a gate model up to three meters, while Zheng Jiaer's "couplet artifact" is only more than one meter long. In order to ensure the smooth progress of the program, Mr. Zheng Jiaer and Mr. Xu bought stainless steel water pipes in Beijing, transformed the couplet artifact overnight, and finally increased the length of the whole long pole to three meters, which enabled the invention to be successfully displayed.
On April 16, the "Lang Xing" team composed of Zheng Jiaer and seven other students walked into the recording scene of CCTV's "Watch My Seventy-two Changes". They showed the ingenuity of "posting couplets" to the national audience in the form of sitcom performances. In the end, he stood out from the seven teams, scored the highest score in one fell swoop, successfully advanced to the weekly championship and won back the golden statuette.
Later, Zheng Jiaer and two other students came to the CCTV studio again to participate in the "Creative Youth" competition. Although he finally missed the national creative competition for primary and secondary school students with a score of 9: 10. But they still won the Creative Youth Meritorious Medal.
The teacher said that Zheng Jiaer is full of curiosity about everything in life on weekdays. As long as you meet a question you don't understand, you should chase after the teacher and ask. Questions you don't understand in class, things you don't understand in life. Zheng Jiaer is always asking questions from the structure of the earth to the machines around him. As soon as Zheng Jiaer thought of the idea of "posting couplet artifacts", he immediately put down what he had and ran to find himself.
At present, the "couplet artifact" has applied for a patent, and Zheng Jiaer is still actively improving with the teacher.