Science is related to the development of society and how people know their place in the world, so science should not only belong to scientists, but also to the public. Science, technology and education are both familiar and unfamiliar. Familiarity is because it is closely related to everyone, and expressions such as "scientific fitness" and "scientific health preservation" can be seen everywhere in life. In this sense, "science" is equivalent to "effective" and "reasonable". It actually reflects the practicality and instrumentality of popular science in public consciousness. Scientific principles are everywhere in life! Let's take the simplest example in life. Students have been bitten by mosquitoes. Why do mosquitoes bite us? According to the signal recording results of nerve cells on mosquito tentacles, combined with the picture data of tentacle cells in electron microscope, 9% of mosquito tentacle cells are designed to detect airborne chemicals. Therefore, carbon dioxide, body heat and lactic acid discharged by people are very attractive to mosquitoes. Of course, this makes sense, because we have heat, we exhale carbon dioxide and sweat also contains some lactic acid. But what's more interesting is, what clever instrument does the mosquito use to detect these three things that arouse its interest, so as to ensure that it can detect the prey efficiently and safely? This requires us to continue our research and discovery. Also, when eating with a spoon, we use the mechanics principle in physics. The camphor ball will disappear after a long time, that is, the volatilization principle is used. The back thing also covers the relationship between pressure and pressure ... As long as we carefully observe the scientific truth everywhere. It is strange because rejuvenating the country through science and education is a basic national policy of our country. The successful launch and return of China's Shenzhou VII manned spacecraft is a good example. Since China started the manned spaceflight project in 1992, shenzhou spaceship has been out for the seventh time. Following Shenzhou 5 and Shenzhou VI, China's manned space program has taken a solid step forward. Astronaut Zhai Zhigang went out of the cabin to walk in space, and completed the scheduled space science experiment. The vast space showed the vigorous posture of China people for the first time. From unmanned to three people, from inside the cabin to outside the cabin, this is a new height of China's space industry and a new height of the Chinese nation's scientific and technological level. Just as President Hu Jintao said: "Carrying out the Shenzhou VII manned space mission is the most representative and influential national-level major scientific research practice in China this year, and it is another great feat for the people of China to climb the world's scientific and technological peak." Indeed, in the 21st century, science and technology is a key word in the information of the times. It can be said that everything we have today is inseparable from the development of science and technology. From clothing to food, from living to traveling, from individual to country, the development of science and technology has made many fairy tales come true. It is no longer a beautiful ideal for human beings to go to heaven and go to earth, and it is no longer wishful thinking.
At the 37th International Symposium on Creative Problem-solving between the United Nations and the United States, the participants reached an understanding that the gap between developed and backward countries is essentially the gap in creativity development. Backward countries want to narrow the gap with developed countries in the fields of economy, science and technology. It is necessary to start with the development of people's creative potential and gradually narrow the gap in developing people's creativity in a purposeful and planned way. This is a far-sighted and profound understanding. No wonder Dr. Li Zhengdao, a Nobel Prize winner, said during his visit to the University of Science and Technology of China, "The most important thing in cultivating talents is to cultivate creativity." Nowadays, "teaching to cultivate creativity" has become the tendency of school education in many developed countries. At present, China's quality education theory holds that students are the main body of learning activities, and all educational activities should be student-oriented and student-oriented, that is, the key is to cultivate students' practical ability and innovative spirit. Moreover, through the ages, all talents who have made outstanding contributions to science have experienced contact with science since childhood, studied science, and then became interested in studying science, so as to break through some new fields in science and climb to the peak of science. South Korea's "East Asia Daily" said: "To become a scientist, middle school is the most critical." That is to say, middle school is the golden age to cultivate scientific interest and innovation ability. Scientific inventions and creations are everywhere around us. The knowledge and practice of various disciplines all contain hidden scientific factors. As long as we observe carefully, analyze carefully, make bold assumptions, verify carefully, use our imagination and dare to innovate, then each of our teenagers may become inventors and scientists.
science is in the heart and innovation is in the hand. Students, each of us is an independent individual, and our thoughts and wisdom are unique. If you don't have the material conditions to create, then write down your thoughts; If you have a novel idea, let's start to create it. Students, let's take this speech contest as an opportunity. I hope that in our daily life, we will always keep our knowledge of science and technology, actively participate in daily scientific activities, love science, learn science, use science, find science around us, learn to solve one or two problems in life by scientific methods, constantly learn scientific knowledge, cultivate scientific spirit, establish scientific ideals, master scientific methods, and improve our scientific literacy, so that our lives can be everywhere.