With the continuous development of science and technology, our living standards are like sesame blossoms, and our lives are also rich and colorful. It can be said that technology has changed our lives. Do you know how the outstanding students of 2020 Youth Dream Building Technology feel after serving their country? The following are five articles I collected for you about the feedback from outstanding students of 2020 Youth Dream Building Technology to serve the country. I hope I can help you.

2020 Youth Dream Building Technology: Thoughts on Excellent Students Serving the Country (I)

Listening to China's prosperity, admiring pride of chinese's figure, lingering in the beautiful blueprint of China's prosperity, the soaring eagle played the drums that resounded through the sky.

If the take-off of China is like a huge wave, then the progress of science and technology is a cascade of waves.

Maybe the flying of Shenzhou VI has become history, maybe the legend of exploring the moon has become a much-told story, maybe VLSI has faded out of people's sight ... all this is just a chestnut in the wave of science and technology. Needless to say, the mysterious discovery of space is amazing, and the pictures sent back by the moon are exciting. It's just that Antarctic exploration is full of passion and dance. The movement of the wave of science and technology seems to be a prosperous chapter of the rise of the eagle, surging and passionate.

Technology is everywhere. Mobile phones, computers, MP3 and other digital products, using the research results in the fields of materials science, ergonomics, electronics and so on, are constantly innovating and upgrading rapidly, and are deeply loved by all kinds of digital talents. Cars, trains, planes, ships, don't underestimate these seemingly simple and ordinary means of transportation. They are not simple. For example, a car has 30,000 parts, covering ergonomics, materials science, aerodynamics and other fields. We eat oil, rice and noodles every day, but have we paid attention to agricultural science and technology, agricultural machinery science and technology, etc ... To put it bluntly, we know each other about the food we eat, the clothes we wear, the books we read, the tableware we use and the games we play ... We can all see the figure of science and technology, and now we, especially the people in the city, can't move forward without these technologies.

However, with the rapid development of science and technology, have we ever thought that when there are more high-rise buildings than chestnuts, the sewage from Harbin Pharmaceutical Factory has been quietly discharged into the clear river; When there are many rafters in expressway and overpass, the Yellow River has gradually dried up in the Yangtze River. When prosperity and rapid growth blinded our eyes, who heard the sigh from Lop Nur?

There is nothing wrong with the rapid development of science and technology, and it is not allowed to blame for improving people's livelihood. However, should we stop and reflect, and should all this be at the expense of the dryness of Poyang Lake? Dry land and deep stripes are like my dry hands. Hold my heart tightly and can't beat. The lake is full of straw, not like a tree in the sky, but refers to the sky, so dazzling and arrogant. Poyang Lake, once ranked as the ninth largest lake in the world, is rapidly wasting away because of human development. In 2007, she lost weight in just one year14, watching her sister shrivel up and repeat her own mistakes. Lop Nur shed tears, but it just turned into a grain of sand and was buried in the desert. Lop Nur sighed gently.

Lop Nur sighed, recalling that an old man with yellow hair planted Xuanyuanbai in Lop Nur with vigorous hands, Lop Nur sighed sadly in the face of the loess plateau, which is now full of valleys and valleys, and the gloomy forest in the past turned into yellow sand all over the sky today.

In this era of rapid development, you and I see bustling scenery and sounds every day, but who has thought about what technology has changed?

2020 Youth Dream Building Technology: Thoughts on Excellent Students Serving the Country (II)

Science is often attractive, science will never be explored, and it will always be fresh and interesting. For example, taking the floating egg experiment as an example, many people may know it, but the process of doing the experiment is far more novel than what I heard.

The experiment is simple. There are only four materials: big glass, salt, spoon and eggs. Simple as it is, you can get endless knowledge from it.

First, I picked up the kettle, poured half a glass of water into the cup, and then gently put the eggs into the water. After the egg sank to the bottom of the glass, it stopped moving and seemed to be resting.

Then I put 1 tablespoon of salt, and the eggs didn't move; I began to put the second spoonful of salt, and the eggs were still lying quietly at the bottom of the cup; I put down 6 spoonfuls of salt in a rage, and the eggs didn't live up to expectations and rose a little; Finally, I put 2 spoonfuls of salt, and the index of egg rise was higher.

I heard that other people's eggs can float in the middle of water, so I took them out, stirred the semi-finished salt water with a spoon and slowly put them in until the bottom of the cup was salted. At this time, the eggs kept floating up and down. I waited for a while, but the egg did not move and struggled to surface.

Finally, I poured the remaining 2 spoonfuls of salt into the water, and the eggs gradually surfaced. If I swim freely with a swimming ring, I will press the egg down with my naughty fingers and let go of my fingers, and the egg will soon float back to the water.

Why do eggs float? I got something from the computer: when an egg is just put into clean water, it will sink to the bottom because its specific gravity is greater than water and its buoyancy is less than its own weight; After salt is released, water dissolves the salt and the specific gravity of water increases. When the specific gravity of salt water is equal to that of eggs, eggs will float in the middle of water. Keep adding salt. When the specific gravity of salt water is greater than that of eggs, the eggs will float on the salt water and the top of the eggs will be exposed to the water.

The teacher told us in class that any object will be buoyed in water, and buoyancy is equal to the volume and weight of the water boiled by the object. This is the famous Archimedes principle, also known as the law of buoyancy. In fact, science and physics are similar when they grow up.

I was surprised that this little experiment contained so many theorems, which made me realize that science is of great significance to us besides relaxing and playing. I secretly made up my mind to study physics and study this interesting science in the future.

2020 Youth Dream Building Technology: Thoughts on Excellent Students Serving the Country (III)

Science and technology are like a double-edged sword. It brings us good news, but it also creates some troubles, such as environmental pollution. Genetic engineering can be used to cure diseases and destroy human beings.

Nowadays, science and technology have become a great driving force to promote the development of productive forces.

In wartime, science gave people the means to poison and kill each other.

In peacetime, science and technology will make our life hasty and unstable.

Forget the past and look forward to the present. Computers are almost a necessity for every family. Computers are widely used, such as chatting with QQ, playing games, looking for information and so on. However, some people can't extricate themselves because they are addicted to the Internet, some people can't extricate themselves because they play too many wars and other games online, some people kill people because they play too many wars and other games online, and some people go to Internet cafes because they don't have a computer at home, but their parents don't give them money, so they rob and kill people in Internet cafes for money. This is the disadvantage of the Internet.

There are many advantages of the network. For example, in the 2 1 century, some people used computers to create games and used browsers to access short articles, handwritten newspapers and some key knowledge, which achieved good results. If you can't watch TV programs on TV, you can watch them on the computer.

Technology is a double-edged sword, with advantages and disadvantages. As long as we seize an intersection, we can ensure that the advantages outweigh the disadvantages.

Don't forget this when using the network.

2020 Youth Dream Building Technology: Thoughts on Excellent Students Serving the Country (IV)

Time flies, time flies, and our society develops like a spiral with the passage of time. In recent years, China has made many remarkable achievements in the field of science and technology: the success of nuclear bomb explosion, the smooth launch of rocket satellites, shenzhou spaceship's flying dream, the development of Godson and so on. All these show that China has its own foothold in the field of world science and has become a rapidly developing country.

The development of science and technology has brought a lot of convenience to our people's lives. The continuous innovation of various household appliances and the continuous progress of communication tools have made our life extremely convenient, which is only from the perspective of life; From the perspective of national development, science and technology make China stronger and stand out in the world.

Science and technology have brought countless benefits to different fields of society. In recent years, a new term of surrogacy has appeared in medicine. Surrogacy refers to the process of implanting a fertilized egg into the uterus of a pregnant mother, and the pregnant mother completes the "pregnancy in October, one delivery" for others, also known as "borrowing the abdomen to give birth". Surrogacy has fulfilled the dream of being a mother for those who can't have children of their own. However, there are many moral and ethical problems in this science and technology. Surrogacy complicates social relations. It can be said that the child born by surrogacy has two mothers, one is the mother who gave him genes, and the other is the mother who gave him flesh and blood. Who will the child recognize as his mother? No matter who you choose, it will do great harm to another mother. The social relationship between husband and wife, surrogate women and their children will be intertwined with the implementation of surrogacy. For example, the sensational "M Baby Incident" in the United States: mary white volunteered to be a "surrogate mother" for the Sterns. But after Mary gave birth to the child, she would rather return the bounty of $654.38+$00,000 and feed the child. So, is it no trouble? Even if a lawsuit is filed, how should the judge decide? All these make us feel very confused.

2020 Youth Dream Building Technology: Thoughts on Excellent Students Serving the Country (5)

With the development of science and technology, people's living standards are getting higher and higher, their material life is enriched, their education level is improved, their horizons are broadened, their faces are more smiling, and their wallets are more bulging. These are obvious facts, which prove that science and technology are closely related to human life. As soon as we were born in this world, we began to improve our lives. In order to achieve a better life, we have also transformed nature and technology. The heavy labor force in ancient times was transformed by science and technology, mechanized and automated, which greatly improved work efficiency and economic development. Every invention and breakthrough in scientific research has formed our colorful material world today. Humans are using science and technology to pursue a better society and life. Therefore, science and technology are closely related to human life.

As the saying goes, nothing is impossible except the unexpected.

In the past, it was difficult for people to get in touch with relatives and friends who were far away from home, and it was all by writing letters. However, this is no longer a problem today. Since the 20th century, with the rapid development of science and technology, especially computer network technology and electronic information technology, expensive luxuries such as mobile phones and computers have entered the homes of ordinary people and become necessities of our lives. The appearance of mobile phones has narrowed the distance between us. 1969, which has become popular all over the world, is even more convenient. You can sit in front of your computer at home, click the mouse, and your friends who are far away will instantly receive your message and reply to you, and enter the online world.

Be able to communicate openly with strangers online; You can express your opinions without fear; Feel free to express your feelings in Weibo or blog; You can get any information you want, such as news, knowledge and entertainment ... That's what the so-called "staying at home and knowing what's going on in the world" means. Let's imagine, if there is no mobile phone, how can we keep in touch with our relatives at will, understand each other's situation and enhance our feelings; If there is no internet, how can we chat with friends abroad, make new friends, get the knowledge we want and comment at will? This is the change of technology in our lives.