Deng Jiaxian

Once, a parachute accident occurred during the flight test, and the atomic bomb fell to the ground and cracked. Deng Jiaxian knew the danger well, but he grabbed it by himself and took the broken atomic bomb fragments in his hand for careful inspection. As a medical professor, his wife knew that he had the cracked atomic bomb and forced Deng Jiaxian to return to Beijing for inspection. It was found that there were radioactive substances in his urine, liver damage and radioactive substances in his bone marrow. Subsequently, Deng Jiaxian still insisted on returning to the nuclear issue.

Test base. When struggling, he insisted on installing the detonator himself, and for the first time, he gave an order to the people around him with the authority of the dean: "You are too young to leave!" 1985, Deng Jiaxian finally left lop Nur and returned to Beijing, still wanting to attend the meeting. The doctor forced him to be hospitalized and told him that he had cancer. He collapsed feebly in his hospital bed, facing the comfort of his wife and defense minister Zhang Aiping, and said calmly, "I knew this day would come, but I didn't expect it to come so soon."

The story about Einstein

(Story 1) Einstein was a playful child when he was a child. His mother often worries about this, and her repeated warnings go in one ear and out the other. Until the autumn of 16, one morning, my father stopped Einstein who was about to go fishing by the river and told him a story that changed Einstein's life.

The story goes like this:

"Yesterday," Einstein's father said, "Uncle Jack and I, our neighbors, cleaned a big chimney in the southern factory. The chimney can only go up if you step on the steel ladder inside. Your uncle Jack is in the front and I am in the back. We grabbed the handrail and finally climbed up step by step. When I came down, your uncle Jack was still in front and I was still behind him. Later, when I came out of the chimney, I found a strange thing: your uncle Jack's back and face were blackened by soot in the chimney, but I didn't even have any soot on me. "

Einstein's father continued to smile and said, "I saw your uncle Jack and thought I must be dirty like a clown, so I went to the nearby river to wash and wash." And your uncle Jack, seeing me clean when I came out of the chimney, thought he was as clean as me, so he washed his hands and went straight to the street. As a result, everyone in the street laughed and hurt their stomachs. They think your uncle Jack is crazy. "

Einstein couldn't help laughing with his father. When his father finished laughing, he solemnly said to him, "In fact, no one else can be your mirror. Only you are your own mirror. Taking others as a mirror, * * * may make yourself a genius. "

Hearing this, Einstein suddenly looked ashamed.

Einstein left the naughty children. He always takes himself as a mirror to examine and reflect on himself, and finally reflects the brilliance of his life.

With the correct reference, there will be the correct direction and action, and it is forbidden to blindly compare.

Story composition invented by primary school students

You see, this is my little invention-smart backpack. Now let me explain this smart backpack!

Smart backpacks are light blue, and the appearance of backpacks is no different from ordinary backpacks. If you look carefully, you will find that there are three buttons on the left strap: red, yellow and green.

The red button is the change button. Just click it and say what you want to exchange your backpack for. The smart backpack will fly in mid-air, and at 0. 1 sec, it will become like transformers, and then fly to your hand or the place you specify.

The yellow one is the translation key. If you walk alone on the road, you can talk to all the animals and plants by pressing this button. Maybe you can chat with the stone!

The green button is the monitor button. When you are sleeping, there may be bad people doing bad things to you. This monitor button will come in handy. Press the monitor button before going to bed. As long as there are bad guys coming, the backpack will beep to remind you, don't sleep, there are bad guys.

There is a fingerprint verifier on the right shoulder strap. If the thief wants to steal from the backpack, make sure that as soon as he touches the bag, a balloon will float out of the bag and explode with a bang. The stench in the balloon will make him run away quickly.

I think: My smart backpack is definitely the best choice for people who like to travel.

The story of me and the computer is written in 400 words.

The story of me and the computer. I have a constant fascination with computers and endless grievances. Sometimes we are good friends, and sometimes we are sworn enemies.

Let me talk about my "love" with the computer first!

For a while, I had a lot of homework and my mother was very busy with my study. Every day, you should either choose to read the Olympic Mathematics or do hundreds of books. I am "Cao Cao in my heart and Han in my heart". Although I was solving a problem, I stared at the computer and soon began to stay. Until mom pushed the door and came in. "Why did you only write two questions, huh?" My mother questioned me severely.

However, after all, I can't hide from my careful mother. She asked me, "Do you want to play computer?" I nodded and begged, "Mommy, I only read two chapters of My Cat City. Please let me finish! " Mother flatly refused: "no, you are at a critical moment in your study." In addition, watching computers affects your eyesight, so let's do the problem! Do it quickly and finish ten questions before going to bed! " I had to go back to my desk to do the problem in frustration.

In order to have more time to play computer. Later, I went to my grandmother's house with reading and Olympics, waited for my sister to eat at noon, and worked hard to finish my homework at school. Go home and "declare glory" to your mother and be attentive to her. My mother read my mind at once. Say, "You little brat, just say what you're going to do." I can only tell my mother what I really think. My mother kept silent at first, but later, because she couldn't stand my softness and hardness, she finally found her conscience. So, I rushed to the computer, hugged and kissed. At the moment, my mood is extremely excited.

However, sometimes, I hate computers.

Once, when I sent a message to my classmates on QQ, my computer suddenly "knotted". I pressed the keyboard crazily and finally recovered. I saw a message from her: "Your typing speed is too slow!" 5555555,5 is really dumb to eat Rhizoma Coptidis-it's too bitter to say!

Another time, I watched Qian Zhongshu's Fortress Besieged on the Internet. Just when I was about to see the bright spot, I heard a "ding" and a box popped up, covering the part I wanted to see. There is a pattern with a red round bottom and a white cross on the frame, which indicates that there is something wrong with the system management, and then it crashes. I am flustered and at a loss. Because I'm just a novice in computer system management. So I had to press the keyboard, smash the mouse and scold that disappointing thing-the computer. As soon as my sister who was playing aside saw me like this, she shouted, "Sister has a nervous attack!" " "This makes me very embarrassed. I really wanted to punch that little villain at that time.

Computer is not only a good helper in my study, but also a good tool for me to communicate with my classmates, but sometimes it is also the fuse of my "war" with my mother. While it brings me happiness, it also adds a lot of troubles, but to be honest, I really can't tell the judge without it.

Some inventions of Lei Naike, a short story and a composition.

The text says: Lei Naike invented the stethoscope from two little boys playing on the seesaw, so copy this paragraph.

The story of the great invention of little people is 400 words.

Great inventions of little people

In the historical process towards a modern industrial society, people always think that the steam engine invented by james watt has become the most important cornerstone. Without Watt's steam engine, there would be no later industrial revolution. He himself will go down in history for inventing and improving the steam engine. Just as Herman, an American scholar, recounted the contributions of Scots to the formation of the modern world in How Scots Invented the Modern World, he regarded Watt's steam engine as a material force to build the modern world. Perhaps many people don't know that Watt is Scottish. He has worked in Glasgow University in Scotland for a long time, and ranks as the pride of this university with economist Adam Smith.

Watt 1736 was born in the Scottish port city of greenock. Today, the museum in his hometown shows some tools he used to repair the steam engine. His former residence, an old house, was demolished during the industrial revolution and turned into a modern apartment, but a statue of Watt was built in the corner, and the pedestal showed that it used to be Watt's former residence. When I visited Watt's former residence here, it really took me a long time to find it. Of course, the most meaningful harvest of this trip is to find the baptism certificate of Watt one week after his birth in the local archives here. When I talked to an English historian about it, he was also very surprised and happy because he didn't collect the information himself. This baptism information can prove Watt's birth time and family background. His father James was a craftsman, and his wife Agnes Muihead was born in Watt 1736 65438+ 10/9, and was baptized in religion on 65438+125 October a week later.

For family reasons, Watt went to London as an apprentice when he was young and studied handicrafts. When I returned to Glasgow at the age of 20, I wanted to open my own handicraft shop, but since Watt was never an apprentice in this city and was not born here, I didn't get permission from the trade association. As a businessman donated a batch of astronomical instruments to the University of Glasgow, Watt got a position in the University of Glasgow, responsible for assembling and debugging these instruments, and the school gave him a separate studio. Using this studio, Watt earns some living expenses after work by selling old maps he copied and repairing various items. Of course, during this period, immersed in the scientific research atmosphere of the university, Watt studied diligently, not only learning French, Italian and German, but also paying attention to the dynamic development of science, and often consulting professors from Glasgow University and exchanging scientific questions. At that time, Professor Robieson once praised Watt, who was only 22 years old: I wanted to find a worker, but I met a philosopher.

1763, a physics professor at Glasgow University wanted Watt to repair an abandoned newcomen engine so that it could be used as an internship in physics class. After receiving the task, it took Watt more than a year to fix it. To this end, he thought hard. 1765 One day at the beginning of the year, when he was walking in the downtown park "Glasgow Greenland", he suddenly got inspiration, so he hurried back and quickly found the crux of the problem and made improvements. Therefore, it is generally said that Watt "invented" the steam engine, which should actually belong to improvement. Today, some science history books and some exhibitions also call Watt's legend "Glasgow Greenland", which is similar to the "apple tree" invented by Newton. In addition, in the process of studying Watt's invention of steam engine, historians' introduction to his specific position in Glasgow University can be described as varied and vague. For this reason, the author went to the archives of Glasgow University to find out, and finally found the list of faculty members in the Department of Physics: there are 13 people, and james watt ranks eighth. At that time, the salary of teachers was about 23 pounds per month for all staff, and Mr. Watt's salary was even more "pitiful", only 10.6 shilling, not even a pound. As for his identity, this document shows that he was a mechanic at that time. In order to repair the machine, the school spent 5.5 pounds, including the cost of purchasing materials and the labor cost paid to Watt. In the archives, you can also find a piece of paper signed by Watt, with instructions on "repairing abandoned steam engines" and Watt's own equipment purchase list. Looking at these "running accounts" written one after another 200 years ago, you will feel very cordial and meaningful.

As some historians have said, the invention of the steam engine is gratifying, but it is only the first step. How to apply it to practice is a big problem. About 1765, Professor Blake of Glasgow University introduced Watt to entrepreneur roebuck. Because roebuck knew Watt's invention and its value, he wanted to apply Watt's steam engine to pump water in his own coal mine. However, after a period of cooperation, roebuck went bankrupt due to poor management and was unable to continue to invest in financial support. At the same time, the steam engine that has been initially improved has not been fully formed. In this way, the cooperation between the two had to end. Nevertheless, roebuck's support played a vital role in Watt. Until his later years, Watt still gratefully recalled: Most of the success of my efforts should be attributed to his friendly encouragement, his concern for scientific discovery and his thinking about the application of this discovery.

Just then, another entrepreneur, Bolton, appeared. Matthew boulton is a famous entrepreneur in Birmingham. In order to expand the production scale of his own enterprise, he needs to improve the power system, and Watt's steam engine can meet his needs if it can be applied. At the invitation of Bolton, Watt came to Birmingham and finally successfully completed the application of steam engine in industrial production in 1774. This invention not only opened a new course for the British industrial revolution, but also changed the course of world history. From this, mankind got rid of the dependence on natural forces and began to use machines as the driving force of production, which greatly improved the production efficiency, quickly entered the industrial society and enhanced the well-being of mankind. It is worth mentioning that Watt applied for a patent immediately after improving the steam engine and obtained the patent right. This behavior was also interpreted by Douglas North, a Nobel Prize winner and an American economist, as the reason why the industrial revolution took the lead in Britain was because of the establishment of an effective institutional arrangement to protect property rights.

Watt lived and grew up in the18th century, which was the century of the Scottish Enlightenment. The Enlightenment in Scotland is different from the Enlightenment in France, which was born in the salon of nobles, while in Scotland at the same time, universities were the center of this Enlightenment. It is precisely because of this that a "nobody" like Watt also created a "great invention" that changed the course of world history, and the steam engine became the driving force for the formation of the modern world. In his later years, Watt also felt that all his inventions benefited from the scientific atmosphere of the university and free scientific exploration and exchange, so he donated 300 pounds behind him to set up a science award fund to support scientific research. If we knew that the monthly salary of university professors at that time was only a few pounds, we would know that such a fund was a considerable investment.

The story of me and the computer (about 4000 words)

Tick-tock, tick-tock, time has passed. I'm still playing games at my computer desk. After a while, I was so tired that I gradually fell asleep. Where is this? I seem to be in heaven, and what I see is a fairyland-like beauty. I walked a few miles ahead. On the way, I saw many computers walking in the street. I asked, and then I knew I had come to the computer kingdom. Computer kingdom? Computers are so clever that I can ask them for advice. I followed their instructions and found their learned king. I asked why so many people use you to cheat people and play games with you. It said helplessly to me, "son, you don't understand." You humans invented me originally to find information, but now those criminals regard me as their money-making tool. " It's really our fault! I also learned a lot from it. I asked him how to decorate the photos. It said seriously: "There is a software Photoshop that can retouch photos. After downloading that software, it will coach you by itself. " After consulting so many questions, I "got up and did my homework!" " I was awakened by my mother. It turned out to be just a dream. Through this dream, I learned the real use of computers. Not to let us play games, but to help us study. We should use it reasonably and make it a good assistant in our study.

Write a 400-word science fiction story composition

Write a 400-word science fiction story composition

See all 24 answers.

I'll answer it

I'll answer it. Look at all 24 answers.

Murphy white

Where is LV.4 recommended? 20 18-03- 1 1

Science fiction story composition 400 words

One day, I was walking in the park. Suddenly, something with a lot of light like a plate fell from the sky, with green light in the middle of the low plate, like a pillar. It took me a long time to realize that it was a UFO. I quickly hid behind a big stone. I saw the UFO coming out of the middle with a ladder. His head was big, his eyes were big, his arms were thin, long and short. Only about 1 m aliens come out of UFOs. It said strangely, "Come out, earthlings hiding behind stones. My radar hand has found you, I won't hurt you. " I walked out from behind the stone bit by bit and ran as fast as I could. The alien's hand immediately reached out and grabbed me. I pulled its hand away in fear ... finally, I overcame my fear and walked slowly. I gave it a drink. It put the drink on the ground, and then a piece of water flew into its mouth. I was shocked. It says it has the magic to suck things, and it sucks super water. Can also lift the house, 0. 00 1 sec to calculate a multiplication formula of hundreds of millions. I asked it to take me into the UFO, and it took me into the UFO. There are many machines in it, including a machine that converts light into power, and a super generator that can fly back to the base in one second and rotate 400 million revolutions per second. The antenna on the spacecraft can also receive signals from Mars, Jupiter and Venus.

I saw the voice of the spaceship: "There is something wrong with the power system. Has it been repaired? " The alien replied, "Yes." Five seconds later, the spacecraft said, "The power system has been repaired." I can't help but be surprised: "Your technology is really developed. You can fix the power system here in a short time! " He listened with a proud expression on his face. Then it said, "I'm leaving. My name is Kaguang. I'm a Martian. Goodbye. " A hundred lights flashed and the spaceship disappeared. I just stood there. ...

Get up ... my mother's voice rings in my ear. It was a dream. I thought, "I'm going to Mars to find Ka Guang in the future."

1. Write an article about. (small composition book)

When I see my father's laptop, I think of my eyes.

Last year, my father bought a laptop and a router. I'm glad to see it. So as soon as my father set up the computer, I couldn't wait to open IE browser, quickly enter the website of Moore Manor, and enter the user name and password. When I entered the page, I found that the world in the computer is colorful: there are games against each other, beautiful music, beautiful pictures, high-tech functions, and ... since then, I have played computer games every day, and almost the computer and I have become inseparable friends. But it didn't last long. After only playing computer for half a year, my eyes began to turn upside down. I can't see clearly when I watch the blackboard and TV in class, and my eyes narrow into a crack. My classmates call me "Kitten Sew", and my eyesight starts from 1. 5、 1。 0 has dropped to 0. 5、0。 6, the eyes often feel sour, often blink, but also love to rub their eyes. Mom and dad are very anxious. They bought me a speculum and went to Chinese medicine for acupuncture, but it didn't work. In desperation, my parents had to give me glasses. From then on, my classmates no longer called me "kitten seam", but called me "little four-eyed" and "four-eyed frog", which made me very unhappy.

Hey! They are all computers! After this incident, I learned a lesson that I must control my time when playing computer, or I will wear glasses like me.

The fourth grade composition invented a 600-word short story.

The first article: my gizmo

In life, it will bring us inconvenience because of some things' imperfection. My house is very cold upstairs, sometimes my hands are frozen stiff, and the heating doesn't heat up quickly, so I suddenly have an idea and a strong desire to invent a house for a change, and I feel happy.

He is a very small machine, the upper and lower area is only 10 cm, and the width is only 3 mm The sparrow is small and complete. The color of the device for changing the environment and happy mood in my house is green, and the outside is a real cuboid. There are many things in it, but they don't take up much space. There are fast heaters, fast coolers, music boxes for playing songs, and machines for absorbing carbon dioxide and releasing oxygen. It's just that these can't be called sparrows, although they are small and complete! There is also a small machine that automatically turns on and off the lights. These things can only be operated by remote control. The remote control is divided into six keys, square, rectangle, circle, triangle, trapezoid and hexagon, all of which have names, so you don't have to try them one by one. He can make you feel warm immediately in a room with cold hands and feet, and also make you feel cool in sweat. When you are in a bad mood, you can press the remote control to listen to relaxing songs. It has 65,438+000,000 songs. If there is nothing you like, just give the song a name and it will be downloaded in 10 seconds. What? It's easy to find a lamp when you get up at night. As long as the light is called, the sound energy in the remote control will automatically turn on the light. But in the process of enjoying, be careful not to be exposed to the sun and not to put it in a damp place.

Well, do you feel too satisfied after listening to my invention? With this machine, you will not be timid in a cold and snowy room, and you will not sweat in a hot summer room!

Part II: Invention

Insecticidal nets invented for farmers

There are thousands of pests in the field, and they waste dozens of tons of grain every year. Letting farmers not have a good harvest has become a worry for farmers, making them complain. If there were no natural enemies to subdue them, they would be brave in the fields. Soon, a green field will become a wasteland full of dead branches and leaves. The farmers are worried about it. How can we eliminate these pests?

In the endless field, on the branch, I found an eight-legged spider sticking to the brown branch, spitting out a tangled net in its mouth, sticking there and waiting quietly. At this moment, a locust crawled out of the gap in the corner. He was afraid of danger and hesitated. Since he stuck to the spider web, it has become a delicious food for spiders. Seeing this scene, many questions come to mind: isn't this a trap for locusts? Is cobwebs sticky? Why do locusts stick to it? A series of questions baffled me, and I was unhappy about it all day. Suddenly, I had a brainwave, quickly turned on the computer and read it with relish. It turns out that spiders are sticky and can stick to something. Spiders will pull up their silk and eat it. Then weave the silk into a net and wait for the prey.

After this discovery, I created something with spiders. "Insect-killing net" is to make a net with super adhesive function by using the principle that spider webs can be strongly adhered. If this net finds a bug and recognizes it as a pest, it will quickly suck in the pest, catch it firmly and then destroy it. If we catch them again and again, there will be fewer pests and the reproduction of a large number of pests will be reduced.

Scientists invented the plane with dragonflies; Invented the ship with the blue whale; Radar was invented by bats. Everything in nature needs our observation and understanding.

Look, my masterpiece, I did the farmer a big favor. Animals are really human teachers!

Please refer to. I hope it helps you.

Fifty-word short stories and essays about computers

"ah! Look at this guy growing up and learning to be considerate! " Anyone who sees their children sensible will say so. Let me tell you my story of growing up.

When I was six years old, I just entered the kindergarten middle class, but I already knew the word "considerate" roughly. One night, I was watching TV with relish at home. Suddenly, lightning flashed through the air, "rumbling" and the thunder was deafening. Somehow, like a mouse meeting a cat, it ran back to the cave to "take refuge" and the room fell into darkness. Grandma hurried to find it. Let's finish our meal quickly and go to bed. I finished my meal in a hurry and was about to go to bed when I suddenly saw my grandfather eating in a dark room with a rice bowl. How can he eat without the light of a candle? I think my grandfather used to hold a flashlight when I was eating. So I walked into the room with a flashlight to illuminate my grandfather. When my grandfather saw that I illuminated him, he happily pulled me over and said, "Hehe, you are sensible and have learned to be considerate!" " "Say, touched my head.

Look, I'm rational, right? Because I have grown up.