Open science class 1 comments
What is scientific spirit? Marx said: "There is no royal road to science, only those who climb along steep mountain roads without fear of danger." Madame Curie is one of them. Her scientific spirit is eternal, which is her beauty spanning a hundred years. She discovered the element of thunder, regarded fame and fortune as dirt, donated the prize money to France for scientific research and war, and won the Nobel Prize twice. Others grope for vines, others pick leaves, and she wants roots. This is her scientific spirit and the secret of her ultimate success.
In fact, it is not difficult to discover science. This requires observation and perseverance. The fall of apples from trees is related to the gravity of the earth, and the rotation of bath water is related to the rotation of the earth. The number and time of rolling your eyes while sleeping can measure the number and length of dreams. These are all very common things. Why can't we find them? I'm afraid even if I find it, I won't study it, because only those who are good at "asking in the end" will find something, invent something, create something and achieve something. In the history of science, there are many such examples, which show that science is not mysterious and truth is not far away. Why is truth born after a hundred question marks? As long as you know a little, be good at asking questions and keep exploring, then you can find the truth after you answer a few question marks. Although we are still children, we should also form good habits and avoid some difficulties. What's the use of growing up? We should learn from those who devote themselves to science and persevere.
The scientific spirit we want is to look at problems from a small and universal phenomenon, constantly ask and solve problems, trace back to the source, and not be superstitious about books.
Reflections on scientific open courses II.
In order to get rich, a farmer replanted a large jujube forest and took good care of it every day. The whole family is expecting this jujube tree to bring them wealth, and finally they are looking forward to the harvest season. However, it is puzzling that the flowers of jujube trees have no fruit, but have become bare dead branches, and farmers are very sad. Looking at the dead leaves, the whole family couldn't help but wipe their tears.
At that time, science and technology went to the countryside, and many experts came to help farmers, teach science and technology, and make a fortune by science and technology. With a try attitude, the farmer invited experts to his jujube garden to see the problem of jujube trees. When I arrived at the jujube garden, I saw farmers spraying pesticides on jujube trees and asked why. He said that the flying insects on jujube trees should be killed with pesticides. The expert looked at the jujube tree and immediately stopped saying: It's the flowering period of jujube tree, so we can't spray pesticides, it will burn the flower heads, and of course it won't bear fruit. Farmers are still dubious, but they would rather believe what they have than what they don't have. According to experts, he was skeptical and trained for another year. To the farmers' surprise, jujube trees had a bumper harvest that year, and the total output jumped from only 1000 kg to 250,000 kg, which surprised and envied farmers: pesticides were invented by science and technology, and their use also required science and technology.
Is technology really that amazing? The answer is, of course, yes. In the past, farmers lived on the weather and planted crops and trees by their own experience, but diseases and insect pests often caused them great losses. With the development of science and technology, people invented pesticides to eliminate pests and diseases. Farmers have treasures to protect their crops and can get rich faster. However, the use of pesticides also needs the help of science and technology. From this perspective, technology is indeed the golden key to getting rich. Numerous facts have proved that only by believing in science and mastering technology can you get rich.
Technology is really important.
Reflections on Science Open Course 3
"The festival does not treat each other, and Sangtian is waiting to change." After closed doors, poverty and backwardness, and the unremitting efforts of several generations, China has finally been reborn and can stand in the world scientific era.
The results of the scientific literacy sampling survey released by the first World Conference for the Promotion of Public Scientific Literacy show that the quality of citizens in China has improved. However, some remarks lacking scientific basis often appear in front of people, and false and absurd guiding remarks are common. In this regard, China advocates improving scientific literacy, mastering scientific thinking and scientific thinking, using science and technology to handle social affairs and participate in public affairs.
So how to improve scientific literacy? First of all, we should recognize the harm of lack of scientific literacy. Lu Xun's work Medicine is a typical example. People who lack scientific literacy think that eating steamed bread with human blood can cure diseases. This low-quality national level is the reason for the decay of the times. Therefore, a country's social development and scientific and technological development are inseparable from scientific literacy.
The way to improve scientific literacy is to improve the quality of education in a down-to-earth manner. Knowledge enables people to establish a scientific world outlook. Under the condition that everyone knows and believes in science, drinking white wine can fight cancer, and lightning will not hit the same place twice, so even if there are statements that endanger people's health and personal safety, they will not win trust. Therefore, we should try our best to publicize scientific knowledge. Spreading scientific culture from scratch can effectively improve citizens' scientific literacy.
The scientific literacy of a country's citizens can reflect the development and strength of a country. Therefore, the country has made considerable efforts to improve the scientific literacy of civilization, and our teenagers have also played a key role in improving the quality of the people. Because such scientific literacy needs to be cultivated from an early age, our younger generation can do it well, so the improvement of national scientific literacy in the future is just around the corner. But the premise is that we teenagers should start from ourselves, have basic scientific knowledge, learn cultural knowledge well, improve ourselves, influence the surrounding areas, take it as our responsibility to benefit the country and the people, and let our country have a scientific future.
Down-to-earth, service-oriented spirit, improve quality, so as to achieve your ultimate goal.
Reflections on Science Open Course 4
In 2050, I returned to my hometown Cixi by spaceship. Ah, great changes have taken place in my hometown! When I got home, I was shocked: how did it become so small? Just when I was wondering, my mother unhurriedly pressed a "zoom in" button. Wow, a miracle happened! The original small house has become a big villa.
I came to the bedroom and found that there was no bed, but the bed slowly came down from the ceiling. Where is the TV? Ah! A piece of paper is actually a TV set, which can be folded, torn and spliced. What a portable TV set!
At noon, my mother said, "It's time for lunch. It's time to eat. " But the dining table is empty. Does mother treat her son who came back from Mars like this? My mother probably saw my thoughts and whispered "prepare lunch". A robot seems to have received a special order. While humming a cheerful ditty, I strolled from the corner to the table, slowly opened the screen on my chest and asked us to order in fluent Mandarin. We ordered some favorite dishes on the screen and the robot hurried into the kitchen. After two minutes, all these dishes are ready. The robot attached a sentence: according to your geographical location and your dietary data as a child, give away rice as a staple food. Please enjoy it. Please enjoy!
At dinner, my mother told I, Robot that now is really an indispensable part of life. After dinner, I visited many robots, large and small. These robots are not only my mother's good assistants but also my mother's good friends.
The most amazing robot is the gas robot. If gas leakage is found, it can inhale all the gas and spit out oxygen after conversion. If the owner happened to be in the kitchen, the robot would change a gas mask to let the owner escape from the kitchen as soon as possible, then close the sealed door and suck the gas clean.
The future technological life is really beautiful!
Reflections on scientific open courses 5
The fall of the superstar made the whole country feel sad. On July 30th, Qian Weichang, the father of modern mechanics and applied mathematics in China, who was also known as the master of San Qian with Qian Xuesen and Qian Sanqiang, died suddenly. Rich and legendary life, profound and great scientific attainments, patriotic and professional ethics, innovative and realistic ideas, lofty and simple sentiments have left us endless spiritual wealth. His departure is a great loss to the scientific community in China and to the cause of science and education in China.
We miss his spirit of always putting the motherland first. Mr. Qian was born with twists and turns, and his childhood was turbulent. He studied in a war-torn year, with low tide and glory of being reused. However, the major choices of his life focused on the motherland: for the sake of the motherland, he gave up the major of literature and history, only got 5 points in the physics class and went to the physics department; For the sake of the motherland, he gave up his excellent life and academic career abroad and returned to the motherland to teach and educate people. For the sake of the motherland, he regards the needs of the motherland as his major; For the motherland, he has been sticking to his post, and I will work until the country needs me to work.
We miss his spirit of pursuing innovation. Mr. Qian is not only a famous scientist, but also a famous educator. Teaching and educating people is his lifelong ideal, and constant innovation is his lifelong pursuit. As early as when he was working in Tsinghua, he issued a document against Tsinghua copying the Soviet model at that time, which was out of tune with the times and was criticized. Since he was in charge of Shanghai University of Technology (later merged with other schools to form Shanghai University), his educational innovation practice really began. He put forward the slogan of breaking four walls: tearing down the wall between schools and society and opening universities; Dismantle the wall between teaching and scientific research, and oppose teachers who teach by the book; Tear down the wall between college and major and change the mountain line; The senior professor demolished the wall between teaching and learning and went to the basic classroom. In addition, he also pioneered short-term academic system, credit system and tutorial system in colleges and universities across the country, and streamlined the teaching syllabus.
We miss his selfless dedication to fame and fortune. When he was young, he chose to return to China to contribute to the motherland, rather than fame and fortune; When he is old, he will continue to write a brilliant life for science and technology education. He has many titles: scientist, vice chairman of CPPCC, university president and professor, but he likes President Qian best because the president is not an official. The most important thing is to devote yourself wholeheartedly. He has no salary in Shanghai University and doesn't even have his own room in Shanghai. He never thinks about himself, as long as he does things well for his country.
The people of Sri Lanka have passed away, and their grace will last forever. We will always remember and cherish his spirit, learn and carry forward his spirit, and make our greatest contribution to the development of China's scientific cause, the construction of an innovative country and the great rejuvenation of the Chinese nation.
Reflections on scientific open courses 6
The land under our feet has been undergoing tremendous changes, all because of technology!
A thousand years ago, people lived a simple and difficult life. At that time. People don't know what the spiritual world is. They just want to live a quiet life, eat, drink and be merry, and maintain a normal life. To this end, people burn incense and worship Buddha and pray for peace. Carriage should be the only means of transportation, but it is expensive, so people have to choose to walk. From Shanghai to Beijing, you have to climb mountains and mountains. If you have pneumonia, there is no cure, so people's life span is very short.
Now someone has invented the mobile phone, which has alleviated the lovesickness of people in different places; Someone invented the plane and gave up the long journey of people running outside; Someone has invented an anesthetic to avoid another layer of pain for people with this disease. It is technology that makes our earth smaller and smaller. Now, we are no longer satisfied with material enjoyment, but more at ease in spirit. Burning incense and worshipping Buddha still exists. What doesn't exist is people's stupid ideas.
With the development of medical technology, almost all common diseases in life can be cured, and people with prolonged life have more time to expand and enjoy life. The rapid development of natural science and technology such as biology and chemistry has brought rich and colorful spiritual food to people with strong curiosity. While exploring and inventing, human beings affirmed their own value. People are enjoying the benefits brought by science and technology, and they are also happy.
Once, people were surprised by the stars in the sky; Today, we have been able to send satellites into space.
Once, people thought about how to gain a foothold in this law of the jungle world; Nowadays, we are thinking about how to survive in this infighting world.
In this society of science and technology reformers, we need to face up to the power of science and technology and make our life better!
Reflections on scientific open courses
Scientific spirit is very important, including "new skepticism". We should always be vigilant, correct our mistakes with facts and scientific methods, and have the perseverance to uphold the truth. This is the explanation of "new skepticism".
What the teacher says and what is written in the book are not always correct. I should have the perseverance to stick to the truth. If this is the truth, I will stick to it no matter what others say. In class, the teacher asked us to do judgment questions. The student said yes, and the teacher said, "Yes, it is right after all". The student still insisted on the truth, and the teacher said, "Take a good look at this question, right?" This is what some students said wrong. The teacher asked for the fourth time, and almost all the students were wrong the fifth time. In fact, this question is correct, but the teacher has exercised our perseverance in upholding the truth.
We should learn to question what the teacher said is not necessarily right. For example, the teacher said that this sentence used figurative rhetoric, but this sentence actually used exaggerated rhetoric. At this time, we should correct the teacher's mistakes and have the perseverance to uphold the truth.
Not superstitious about authority, not blindly following the book, not sticking to the rules, insisting on seeking truth, persisting in truth and being brave in innovation is another explanation of "new skepticism"
We should have our own reasons for suspicion. If we think what the teacher said is wrong, we should stand up and say the reasons for our doubts. If we suspect that we are wrong, when the teacher corrects our mistakes, we deepen our understanding of food. Our doubts were correct, which prompted the teacher to correct his mistakes.
We should have the spirit of "new skepticism" in our future study, so that the class will not become very boring.
Reflections on scientific open courses
There are always many small things in our life, which seem ordinary, but we can always find many beautiful things, full of leisure.
When I was a child, I always liked eating ice cream. I ate it for several days in summer, and I felt very cool after eating it every time. Occasionally, I just want to eat ice cream, and the package has not been opened. At this time, my mother asked me to do something, so I left it on the table and forgot. After a while, "ouch! I forgot to eat my ice cream! " It suddenly occurred to me that I rushed to the table and grabbed the ice cream-unexpectedly, there was a pool of "unknown liquid" on the table. I thought, is the packaging bag leaking? No way! There is no crack in the bag in my hand So I have to ask my father with questions. Later, I learned that ice cream is made of ice and the air is hot, so when they meet, the water vapor in the air turns into water when it is cold, which is the "unknown liquid" on the table!
After primary school, I have more and more knowledge and more problems. My father asked me to try to find the answer by myself. One day at school, it was foggy outside, and my mother asked me to wear a mask to go out. I've been thinking on the road-how did the fog come from? Why are you wearing a mask in the fog? So this question bothered me for a long time, and I didn't understand it until I learned physics in junior high school. Fog is actually caused by water vapor. The water vapor in the air will turn into tiny water droplets when it is cold, so it floats in the air because it is too light, and there will naturally be a lot of dust and bacteria in the air, so of course you should wear a mask in foggy days!
Now that I have studied physics and biology, I know more about artificial rainfall and compare it with the experiment. I admire Newton for discovering gravity when he was accidentally hit by an apple. I admire Beethoven's deafness, and he can continue to compose music with bone conduction sound. I admire Edison for successfully inventing the light bulb after 1000 failures. ...
What are all these? This is the scientific spirit-innovation, persistence and exploration. Only by being brave in innovation and exploration, regardless of other people's opinions and neglect, can we discover what others have not discovered and create what others have not created. Maybe a lot of unknown things are like a new continent, which has always existed but is just waiting for us to discover. We must keep going, even if it is a hundred times and a thousand times, we will succeed once!
Reflections on scientific open courses
Scientific spirit is the torch to illuminate human progress. Great progress or breakthrough in the history of science is the result of continuous exploration and research by scientists. Scientific achievements are important, but the scientific spirit of continuous practice, courage to explore and perseverance is the most precious and worth learning. This is my biggest feeling after reading the popular romance of mathematics, physics and chemistry.
The Popular Romance of Mathematics, Physics and Chemistry is a novel by Liang Heng, a contemporary writer and journalist. This book uses China's unique genre-Zhang Hui's novel, and tells the life contribution of great scientists with easy-to-understand language and vivid and interesting plots. This book popularizes the history of mathematics and physics for readers, and makes people realize that scientific achievements are hard to come by. Those tedious historical stories were transformed into concise, interesting and touching stories by Mr. Liang Heng with vivid language, which aroused readers' interest in reading.
Through reading this book, I learned many stories about scientists and found that behind these scientific achievements, there are not only sweat and tears, but also joy and laughter. In any case, the dedication and sacrifice of every scholar are meaningful. It is because of them that ordinary but extraordinary formulas are now available. As Mr. Liang Heng said, "How precious and lovely these formulas are".
After reading the popular romance of mathematics and physics, what impressed me most was the scientific spirit of the scientists in the book, especially the spirit of courage to practice, in-depth exploration and perseverance. I admire many scientists in the book very much. They choose their own direction and goals and seek truth through constant practice and exploration. The road of scientific exploration is full of ups and downs, but they ran to the goal with perseverance and finally achieved something. There are many such characters in the book, such as Zu Chongzhi, Bruno and Kepler.
In this book, one person impressed me deeply, that is, Zu Chongzhi, a mathematician and astronomer in the Southern and Northern Dynasties. Zu Chongzhi was smart and knowledgeable when he was young, but in the face of scientific exploration, he was meticulous and kept getting closer to the truth.
Zu Chongzhi's greatest contribution in the history of mathematics is to calculate a very accurate approximation of pi, which is 3. 14 15926.
After reading The Popular Romance of Mathematics, Physics and Chemistry, I feel that I should firmly go on with my life goals. Even in the face of difficulties, as long as I am in the right direction, don't give up and keep working hard, I will always reach my destination.
Comment on open science course 10
When I was a child, I used to worship great scientists. She is Madame Curie. For scientific research, she is willing to let acid and alkali erode her soft hands, and she is willing to let smoke dye her white forehead. She used to give trophies to children as toys, and she also scrambled to raise money. I was deeply moved by her tenacious and firm quality.
Now that I have grown up, I know the names of more outstanding scientists, such as Yuan Longping, Qian Qihu, Yu Min and Tu Youyou ... Their scientific spirit left a deep impression on me. Their magical and brilliant life, dazzling feats like stars, all make us admire infinitely; Their scientific spirit of seeking truth from facts, being brave in innovation and dedication is worth learning!
What makes scientists set the goal of marching into science? It is the spirit of diligent study in the early years. Countless scientists have jumped into the sea since childhood. When Deng Shu Qun, a fungal plant pathologist, was young, he always went out to attend lectures or read books on his father's desk. With a never-ending ambition, at the age of 13, he was admitted to Tsinghua School with excellent examination results. Hard study in his youth laid a solid foundation for him to embark on the road of science. Yes, which scientist didn't study hard in his early years? They are enlightening us, as the masters of the future world, how to grasp today?
What makes scientists knock on the door of science? It is a realistic and innovative spirit of being brave in exploration, seeking truth from facts and not superstitious about authority. In old China and the early days of liberation, some foreign experts who came to help China find oil fields rashly labeled China as a poor oil country. Li Siguang, a geologist, was not frightened by the authoritative conclusions of foreign countries, insisting that China is vast and rich in natural resources. He camped with the exploration team, went to areas that might contain oil and natural gas for investigation and exploration, and finally found a number of super-large oil fields such as Daqing Oilfield and Shengli Oilfield, which proved the error of authoritative conclusions with facts. Seeking truth from facts, exploring and innovating, isn't it the scientific spirit that we must carry forward?
What makes scientists so obsessed with scientific exploration? It is a strong will and a spirit of silent dedication to science and mankind. Madame Curie was both a scholar and a hard worker in that broken wooden shed. With amazing perseverance, she worked selflessly day after day and year after year, and found a new element polonium from tons of asphalt slag. Purifying 0. 1g radium from 3 tons of uranium ore residue is like looking for a needle in a haystack. To this end, she dedicated her life and health. How admirable is Madame Curie's spirit of devoting herself to science despite difficulties and hardships!
What makes scientists immortal? That is fervent patriotism. In order to develop his own atomic bomb and hydrogen bomb, the father of the two bombs gave up many good opportunities for fame and fortune. From 196 1 to 1978, he remained anonymous for 17 years and made outstanding contributions to strengthening China's national defense forces. Science has no nationality, but scientists have their own nationality. Many China scientists studied abroad, but in the end they returned to their motherland. Because their roots are in China, they love China. Let us admire their China heart, let the world admire it, and let the bright five-star red flag fly high!
Great scientist, we salute you. Your persistence, hard work, perseverance, perseverance, diligence in thinking and courage in practice will lead us to a better and more brilliant tomorrow!
Since we live in such a great era and such a great country, why shouldn't we pay tribute to and learn from these great scientists? Students, let's inherit and carry forward their spiritual qualities, do what we should do and add luster to our motherland in our own way!
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