military experts give lectures on "the secret of flight" and fuxue hutong primary school starts the first lesson of the new school year
2024-09-03
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"the largest airplane in the world has 32 wheels, the fastest airplane can reach 3.2 times the speed of sound, and the smallest airplane is only as big as the palm of your hand..." on the morning of september 2, in the "2024 scientist spirit leading the first lesson of the school year" activity jointly organized by the beijing association for science and technology and the beijing news, chen hong, a former professor at the air force command college and air force colonel, walked into fuxue hutong primary school and led the students to explore the mysteries of flight.
all 3,700 students of fuxue hutong primary school participated in this "first lesson of the new semester" through on-site and school network live broadcast.
air force expert chen hong teaches the students of fuxue hutong primary school about the "secrets of aircraft flight". photo provided by the school
discover the world's largest and fastest aircraft
"think about it, how can a fighter jet make its bullets shoot forward without hitting the propeller of the aircraft?" during the lecture, chen hong vividly demonstrated the structure and principles of a fighter jet to the students through an ai short film he made himself, and threw a design problem to the students.
in response to the questions raised by chen hong, the students of fuxue hutong primary school used their imagination to make bold "redesigns" of the aircraft. "the propeller can be built under the wings of the aircraft" and "the trajectory of the bullet can be changed"...
chen hong said that at the beginning of the last century, facing this problem, dutch fighter designer anthony fokker came up with his own design solution. that is, through a cam system, the weapon can only fire when the propeller is not in line with the machine gun, and can shoot through the propeller arc without hitting the blades.
what is the largest plane in the world? what is the smallest plane? how fast is the fastest plane? how high can a plane fly? ... during the lecture, chen hong talked about foreign airborne early warning aircraft, heavy stealth fighters, giant transport aircraft, carrier-based fighters, and the chinese-made j-20 fighter, y-20 strategic transport aircraft, wing loong uav, and rainbow-4 uav. the various aircraft opened the students' eyes.
in addition to introducing the aircraft, chen hong also told the students the stories of several pilots. pilot zhang chao encountered a sudden aircraft failure during training, and unfortunately died heroically because he could not bear to abandon the aircraft to escape; pilot cao xianjian faced an abnormality in the flight control system and tried to save the fighter plane, but missed the best time to escape. he was forced to parachute to escape in the last 2 seconds and was seriously injured. the pilots' determination to strengthen the army and serve the country and stick to their mission deeply moved the students.
the various special aircrafts opened the students' eyes. photo provided by the school
"i want to be a pilot when i grow up, but can i still be a pilot if i wear glasses?" at the end of the lecture, students from fuxue hutong primary school asked chen hong a very realistic question. chen hong told the students that pilots have very high vision requirements. "but you still have the opportunity to become a pilot. you don't have to be a pilot who actually operates and drives on an airplane, you can become a pilot who remotely drives a drone." chen hong introduced that there are currently two types of drones, one is operated on-site, similar to the remote-controlled airplanes that everyone plays with; the other is a remotely operated drone that can be commanded and operated thousands of miles away through radio and satellite relay. "pilots can control drones thousands of miles away, like traditional pilots, by operating the joystick, throttle, and heading in the operating room without being affected by poor eyesight."
"in addition, i also suggest that students study hard. you don't have to be a pilot when you grow up. you can also be an aircraft designer. develop more advanced equipment and make greater contributions to the country." chen hong encouraged the students.
apply the knowledge gained from aviation lectures to the model aircraft club
wu zhongyu is a member of the model airplane club of fuxue hutong primary school. he has always had a strong interest in airplanes and has participated in many model airplane competitions. "after listening to today's lecture, i understand more about the flight principles and design ideas of airplanes, and also know about airplanes from various countries. i think i can better apply the knowledge i learned today to the future competition training of the model airplane team." wu zhongyu, a sixth-grade student at fuxue hutong primary school, said.
"what impressed me most today were the pilots who were not afraid of sacrifice. they are very great. the spirit of a scientist is selfless dedication, fearlessness of difficulties, and hard work in exploration and innovation. i hope i can carry forward this spirit in the future, not be afraid of difficulties, and make more contributions," said zhang zhiyuan, a fifth-grade student at fuxue hutong primary school.
students from fuxue hutong primary school presented a red scarf to chen hong. photo by beijing news reporter xu yanlin
"popular science lectures are very necessary for students. on the one hand, they are to promote the most advanced science and technology, so that students know how far our country has come and how far it still has to go to achieve the world's most advanced technology. on the other hand, they are to promote the spirit of scientists. what i believe in the spirit of scientists is to work hard and strive to make the greatest contribution to the motherland, regardless of personal gains and losses," said chen hong.
li yi, head of the science group at fuxue hutong primary school, introduced that fuxue hutong primary school is a science and technology demonstration school in beijing and also an aerospace school. the school features model education and carries out science and technology club activities in many fields, such as model aircraft making and outdoor flying. "students are very involved in such activities. on this special day of the start of school, the first lesson of the school year is themed on aerospace, which allows students to understand the spirit of scientists and inspires students to love their country and not be afraid of difficulties at the beginning of the new semester. this is also an encouragement for students."
beijing news reporter xu yanlin
edited by miao chenxia and proofread by jia ning
