A Short Story of a Scientist Composition
Deng Jiaxian
Once, a parachute accident occurred during an aerial drop test, and the atomic bomb fell to the ground and broke. Deng Jiaxian was well aware of the danger, but he rushed forward alone to take the broken atomic bomb fragments and examine them carefully. His wife, a professor of medicine, knew that he had "held" the broken atomic bomb, and when Deng Jiaxian returned to Beijing, she forced him to have it checked. It was found that there was radioactive material in his urine, his liver was damaged, and radioactive material had invaded his bone marrow. Later, Deng Jiaxian still insisted on returning to the nuclear test base. When he was struggling, he insisted on installing the detonator himself, and for the first time gave an order to the people around him with the authority of the dean: "You are still young, you can't go!" In 1985, Deng Jiaxian finally left Lop Nur and returned to Beijing, still Want to attend a meeting. Doctors forced him to hospital and informed him that he had cancer. He fell weakly on the 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 fast
About Einstein Story
(Story 1) Einstein was a very playful child. His mother was often worried about this, and her repeated warnings fell on deaf ears until the autumn when he was 16 years old. One morning, his father stopped Einstein who was going fishing by the river and told him a story. It was this story that changed Einstein's life.
The story goes like this:
"Yesterday," said Einstein's father, "my neighbor, Uncle Jack, and I were cleaning a large chimney at the factory to the south. The chimney can only be climbed up by stepping on the steel ladder inside. You, Uncle Jack, are in the front and I'm in the back. We grabbed the handrail and climbed up step by step. When we came down, your Uncle Jack was still walking in front, and I was still following him. Later, when I got out of the chimney, I discovered a strange thing: your Uncle Jack's back and face were all blackened by the soot in the chimney, but there was not even a drop of soot on me. "
Einstein's father continued to smile and said: "I saw your Uncle Jack's appearance, and thought that I must be just like him, with a face as dirty as a clown, so I went to the nearby river. Go and wash again and again. As for your Uncle Jack, he saw that I was clean when I got out of the chimney, so he thought he was as clean as me, so he just washed his hands hastily and went out into the street in a big way. As a result, people on the street laughed so hard that they thought your Uncle Jack was a lunatic. "
After hearing this, Einstein couldn't help laughing with his father. After his father finished laughing, he solemnly said to him, "Actually, no one else can be your mirror, only yourself. Mirror of yourself. If you use others as a mirror, you may see yourself as a genius. ”
After hearing this, Einstein suddenly felt ashamed.
Einstein left the group of naughty children. He always used himself as a mirror to examine and reflect himself. , finally reflecting the brilliance of his life.
Only with the correct reference can we have the right direction and action. Do not blindly compare with others.
Elementary school students. Story of Invention
Look, this is my little invention - a smart backpack. Let me explain this smart backpack now!
The smart backpack is light blue. , the appearance of the backpack is no different from that of an ordinary backpack. If you take a closer look, you will find that there are red, yellow and green buttons on the left strap.
The red one is the change button. , just press it and say what you want to change with the backpack, and the smart backpack will fly into the air, transform like a Transformer in 0.1 second, and then fly to your hand or the one you specify.
The yellow one is the translation button. If you are walking alone on the road, if you press this button, you can talk to all animals and plants. Maybe you can talk to stones. Get up!
The green button is the monitoring button. When you are sleeping, bad people may do bad things to you, so the monitoring button will come in handy. Turn the monitoring button on before going to bed. Press it, and whenever a bad guy comes, the backpack will beep, reminding you, don't sleep, there is a bad guy.
There is a fingerprint scanner on the right strap. If a thief wants to steal something in the backpack, he is sure that as soon as he touches the bag, a balloon will float out of the bag and explode with a "bang" sound. , the stench inside the balloon made him run away quickly.
I think: My smart backpack is definitely the best choice for people who love traveling.
The story of me and the computer 400 words
The story of me and the computer. Computers and I have an endless love affair and endless grievances. Sometimes we are good friends, sometimes we are sworn enemies.
Let’s first talk about my “love affair” with computers!
For a while, I had a lot of homework, and my mother was very focused on my studies. Every day, I either had to solve the Mathematical Olympiad selections or read hundreds of articles. I was "in the Cao camp but in the Han Dynasty". Although I was doing the questions, I was looking at the computer intently, and after a while I became dazed. Until my mother opened the door and came in. "Why did you only write two questions, huh?" Mom asked me sternly.
However, I couldn't hide it from my careful mother. She asked me: "Do you want to play on the computer?" I nodded and begged: "Mommy, my "Cat City" is You’ve read two chapters, please let me finish.” My mother refused flatly: “No, it’s a critical moment for you to study. Besides, looking at the computer affects your eyesight. You’d better do it quickly!” You are not allowed to sleep until you finish ten questions!" I had no choice but to go back to the table to do the questions dejectedly.
In order to have more time to play with the computer. Later, I took the reading and Mathematical Olympiad to my grandma’s house and did it at noon while waiting for my sister to eat. I tried to finish my homework at school. He went home and "gloriously announced" to his mother and showed great courtesy to her. Mom immediately saw through my mind. Said: "You little devil, what are your intentions? Tell me." I could only tell my mother exactly what I thought. My mother was silent at first, but then she couldn't stand my constant pressure and finally her conscience showed up. So, I rushed to the computer and hugged and kissed it. At this moment, I feel extremely excited.
However, sometimes, I hate computers.
Once, when I was sending a message to my classmates on QQ, my computer suddenly "knotted". I pressed the keyboard furiously and finally recovered. I saw a message sent from her: "Your typing speed is too slow!" 5555555, 5 is really a dumb person eating coptis - I can't tell you the pain!
Another time, I was reading "Fortress Besieged" by Qian Zhongshu online. Just when I was about to get to the exciting part, I heard a "ding" sound, and a frame popped up, covering the part I wanted to see. There is a red circle with white crosses on the frame, which says that there was a problem with the system management, and then it crashed. I was furious and at a loss. Because I am a complete novice when it comes to computer system management. So I had to press the keyboard wildly, smash the mouse wildly, and curse the unsatisfactory thing - the computer. When my sister who was playing nearby saw me like this, she yelled, "Sister, I'm having a big nervous attack!" which made me so embarrassed. At that time, I really wanted to punch this little villain in the ***.
The computer is not only a good helper for my study, but also a good tool for communication between me and my classmates, but sometimes it is the trigger of the "war" between me and my mother. While it brings me happiness, it also adds a lot of trouble, but to be honest, I really can't live without this happy friend.
An essay on some short stories of Lenek’s inventions
The text says: Lenek invented the stethoscope from two little boys playing on a seesaw, so I copied that section It’ll be fine in a moment
A 400-word essay on the story of a little man’s big invention
In the historical process of moving towards modern industrial society, people have always It is recognized that the steam engine invented by James Watt became the most important cornerstone. Without Watt's steam engine, there would be no subsequent industrial revolution. And he himself will go down in history forever because of his invention and improvement of the steam engine. Just as the American scholar Herman counted the Scots' contributions to the formation of the modern world in his book "How the Scots Invented the Modern World", he regarded Watt's steam engine as the material force that constructed the modern world.
Perhaps many people are not aware that Watt is a Scotsman who has worked at the University of Glasgow in Scotland for a long time and is the pride of this university along with economist Adam Smith.
Watt was born in 1736 in the port city of Greenock, Scotland. Today, his hometown museum displays some of the tools he used to repair steam engines. His former residence, an old house, was demolished during the Industrial Revolution and turned into a modern apartment. Only a statue of Watt was built in the corner, and the base indicated that this was Watt's former residence. When I came here to visit Watt’s former residence, it took me a lot of time to find it. Of course, the most significant achievement of this trip was the discovery of Watt's baptismal certificate a week after his birth in the local archives here. When I talked about this with a British historian, he was also very surprised and delighted because he had not collected this information himself. This baptismal information can prove Watt's birth time and family background. His father, James, was a craftsman and his wife was Agnes Muirhead. Watt was born on January 19, 1736, and was baptized a week later on January 25.
Due to family reasons, Watt went to London as an apprentice when he was young to learn the craft. When he was twenty years old, he returned to Glasgow and wanted to open his own handicraft shop. However, since Watt had never been an apprentice in this city and was not born here, he did not get permission from the guild to open. Because a businessman donated a batch of astronomical instruments to the University of Glasgow, Watt found a position at the University of Glasgow, responsible for assembling and debugging these instruments, and the school gave him a separate studio. Using this studio, Watt earned some living expenses in his spare time by selling the ancient maps he copied and repairing various items. Of course, during this period, Watt was immersed in the scientific research atmosphere of the university. He studied diligently. He not only learned French, Italian and German, but also paid attention to the trends of scientific development. He often consulted professors at the University of Glasgow and exchanged scientific issues. Professor Robison at the time once praised Watt, who was only twenty-two years old: I expected to find a worker, but instead I met a philosopher.
In 1763, a physics professor at the University of Glasgow asked Watt to repair a discarded Newcomen engine so that it could be used for internships in physics classes. After receiving the mission, Watt spent more than a year unable to repair it. He thought hard about this. One day in early 1765, he was suddenly inspired when he was walking in the "Glasgow Green" in the city center park, so he hurried back and quickly found the crux of the problem and made improvements. Therefore, it is often said that Watt "invented" the steam engine, but it should actually be an improvement. Today, some scientific history books and some exhibitions also refer to Watt's legend as "Glasgow Green", similar to the "apple tree" where Newton invented gravity. In addition, in the process of studying Watt's invention of the steam engine, historians have different opinions on his specific position at the University of Glasgow. For this reason, the author deliberately went to the archives of the University of Glasgow to find out, and finally found the directory of the faculty and staff of the Department of Physics: there are thirteen people in total, and James Watt is ranked eighth. At that time, teachers' salary was about twenty-three pounds per month for all teachers. Mr. Watt's salary was even more "pathetic", only ten point six shillings, not even one pound. As for his identity, the document shows that his position at the time was that of a repairman. To repair the machine, the school spent ￡5.50, including the cost of purchasing materials and labor costs paid to Watt. In the archives, you can also find a note signed by Watt himself, which contains instructions on "repairing abandoned steam engines", as well as Watt's own equipment purchase list. Looking at these "running accounts" written one by one two hundred years ago, you will feel very friendly and meaningful.
As some historians have said, it is gratifying that the steam engine was invented, but it was only the first step. How to apply it in practice is a big problem. Around 1765, Blake, a professor at the University of Glasgow, introduced Watt to the entrepreneur Roebuck. Because Roebuck knew about Watt's invention and its value, he wanted to use Watt's steam engine to pump water in his coal mine. However, after cooperating for a period of time, Roebuck went bankrupt due to poor business management and was unable to continue investing in financial support. At the same time, the initially improved steam engine was not yet fully formed.
In this way, the cooperation between the two had to end. Still, Roebuck's support was crucial to Watt. Even in his later years, Watt still gratefully recalled: Much of the success of my efforts should be attributed to his friendly encouragement, his concern for scientific discoveries, and his thoughts on the application of this discovery.
At this moment, another entrepreneur, Bolton, appeared. Matthew Boulton was a famous entrepreneur in Birmingham. In order to expand the production scale of his business, he needed to improve the power system, and Watt's steam engine could just meet his needs if it could be applied. At Bolton's invitation, Watt came to Birmingham, and finally in 1774, he successfully completed the application of steam engines in industrial production. This invention not only opened a new course for the British Industrial Revolution, but also changed the course of world history. Humanity thus got rid of relying on the power of nature and began to use machines as the driving force for production, which greatly improved the efficiency of production, quickly entered the industrial society, and improved human welfare. It is worth mentioning that after Watt improved the steam engine, he immediately applied for a patent and obtained the patent right. This behavior was also analyzed by Nobel Prize winner and American economist Douglas North as one of the reasons why the Industrial Revolution was possible. It took the lead in the UK because of the establishment of institutional arrangements to effectively protect property rights.
The eighteenth century when Watt lived and grew up was the century of the Scottish Enlightenment. The Scottish Enlightenment was different from the French Enlightenment. The French Enlightenment was born in the salons of the nobility. In Scotland during the same period, the university was the center of this Enlightenment. It is precisely because of this that a "little man" like Watt also created a "big invention" that changed the course of world history. From then on, 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 the free scientific exploration and exchange. Therefore, he donated 300 pounds after his death to establish a special science award fund to fund scientific research. If you know that the monthly salary of university professors at that time was only a few pounds, you will know that such a fund was a considerable investment.
"The Story of My Computer and Me" Composition (about 4,000 words)
Time flies by, and I am still playing games at the computer desk. , after a while, because I was too tired, I gradually fell into sleep. Where is this place? I seemed to be in heaven, and what I saw was a fairyland-like beautiful scenery. I walked forward for a few miles, and on the road, I saw Many computers were walking on the street. I asked around and found out that I had come to the Computer Kingdom. Computer Kingdom? Computers are so smart. I could just ask them for advice. I followed their instructions and found their knowledgeable king. .I asked it why so many people use you to deceive people and play games? It said to me helplessly: "Child, you don't understand. You humans first invented me to find information, but now those criminals But they regard me as their money-making tool." Listening to what it said, it was indeed our fault! I also learned a lot of knowledge from it. I asked it how to modify photos? It said seriously: "Yes. There is a software called Photoshop that can modify photos. After downloading that software, it will help you by itself.” After asking so many questions, I said, “Get up and do your homework!” I was woken up by my mother, and when I came to my senses, it turned out that This is just a dream. Through this dream, I know the true purpose of the computer. It is not for us to play games, but to guide us in learning. We should use it reasonably and make it a good assistant in our studies. .
Write a 400-word essay on a science fiction story
Write a 400-word essay on a science fiction story
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Waste Ink Xiao Zhibai
LV.4 Recommended on?2018-03-11
Science Fiction Story Composition 400 words
One day, I was walking in the park. Suddenly, a plate-like object with many lights fell from the sky. The middle of the low plate glowed with green light, like a pillar. It took me a long time to realize that it was a UFO - "unidentified flying object". I quickly hid behind a big rock.
I saw a ladder coming out of the UFO, and an alien with a big head, big eyes, thin and long arms, and very short, only about 1 meter, walked out of the UFO. It said weirdly: "You Earthling hiding behind the stone, come out. My radar hand has discovered you, and I won't hurt you." I walked out from behind the stone bit by bit and ran quickly. The alien's hand immediately stretched out and grabbed me. I was so frightened that I pulled its hand away... Finally, I overcame my fear and walked slowly over. I give it a drink. It placed the drink on the ground, and then a stream of water flew into its mouth. I was shocked. It said it had the magic power to suck things, and it sucked super water. It can also lift a house and calculate hundreds of millions of multiplications in 0.001 seconds. I asked it to take me into the UFO, and it took me into the UFO. There are many machines inside, including a machine that converts light into power, and a super-powered generator that can fly back to base in one second and can spin 400 million times per second. The antenna on the spacecraft can also receive signals from Mars, Jupiter, Venus, etc.
The spacecraft made a sound: "There is a problem with the power system, have you repaired it?" The alien replied: "Yes." After 5 seconds, the spacecraft said again: "The power system has been repaired." I couldn't help but be surprised: "Your technology is so advanced, you can repair the power system in a short time!" It listened with a proud look on its face. At this time, it said: "I'm leaving. My name is Kaguang, and I'm a Martian. Goodbye." A flash of light flashed, and the spacecraft disappeared. I stood there blankly...
I got up... My mother's voice rang in my ears. It turned out to be a dream. I thought: "I will go to Mars in the future to find Kaguang." .”
1. Write a story about a computer. (Small composition text) 〈The advantages and disadvantages that computers bring to you>
As soon as I see my father’s laptop, I will think of my eyes.
Last year, my father bought a laptop and a router. I was very happy to see them. So as soon as my father set up the computer, I couldn't wait to open the IE browser, quickly typed in the website address of Moore Manor, and entered the user name and password. After entering the page, I discovered that the world in the computer is colorful: there are games to compete with each other, beautiful music, beautiful pictures, high-tech functions, and... From then on, I I both play computer games, and the computer and I have almost become inseparable good friends. But the good times didn't last long. I only played computer for half a year, and my eyes started to rebel. During class, I couldn't see clearly at the blackboard or TV, and my eyes were narrowed to a narrow slit. My classmates all called me "Little Kitten", and my eyesight dropped from 1.5, 1.0 to 0.5, 0.6. My eyes often feel sore, I often have to blink, and I like to rub my eyes. My father and mother were very anxious. They bought me an eye implant and went to a traditional Chinese medicine doctor for acupuncture, but there was no effect. In desperation, my father and mother had to buy me glasses. From then on, my classmates no longer called me "Little Kitten", but instead called me "Little Four-Eyed" and "Four-Eyed Frog", which made me very distressed.
Hey! It's all the computer's fault! After this incident, I learned a lesson. You must control your time when playing computer, otherwise you will wear glasses like me.
Fourth grade composition invention story 600 words
Part 1: My little invention
In life, we will give us problems because some things are not perfect enough. It was inconvenient because it was very cold upstairs in my house. Sometimes it was so cold that my hands became stiff, and the heater did not heat up very quickly. So I had a sudden idea and a strong desire to invent a house-changing mood-enhancing device.
It is a very small machine, with an upper and lower area of ??only 10 centimeters and a width of only 3 millimeters. Although the sparrow is small, it has all the internal organs, which is good.
The house environment changer and mood booster I invented is green in color. The outside is a real rectangular parallelepiped. There are a lot of things inside, but they don’t take up much space. There is a rapid heat exchanger, a rapid cooling device and a There is a music box that plays songs, and a machine that absorbs carbon dioxide and releases oxygen. With these alone, it cannot be called a sparrow with all the internal organs even though it is small! There is also a small machine that automatically turns the lights on and off. These things only need a remote control to operate. The remote control is divided into six buttons, namely square, rectangle, circle, triangle, trapezoid, and hexagon. There are names for each application, so you don't have to go through the trouble of trying them one by one. It can make you enjoy the warmth immediately in a room with freezing hands and feet, or it can make you feel cool when you are sweating profusely. When you are not in a good mood, you can press the remote control and listen to the refreshing music. It comes with 100,000 songs. If there is nothing you like, just say the name of the song and it will be downloaded in 10 seconds. What? It's easy to find the light when you wake up at night. Just shout to turn on the light, and the sound energy in the remote control will turn the light on automatically. But when enjoying it, be careful not to expose it to the sun or put it in a humid place.
So, after listening to my invention, do you feel that it is too fulfilling? With this machine, I will no longer shrink back in the ice and snow, or sweat profusely in the hot and sweltering house!
Article 2: Small inventions
Pesticide net invented for farmers
There are thousands of pests in the fields, and they destroy them every year Dozens of tons of grain. The lack of a good harvest has become a worry for the farmers, causing them to complain endlessly. If there are no natural enemies to subdue them, they will wreak havoc in the fields. Soon, a green field will turn into a wasteland full of dead branches and leaves. Farmers are troubled by this matter. How can they get rid of these pests?
In the field beyond sight, a spider was found on a branch with eight legs stuck to the brown branch. A complicated web spun out of its mouth, and it stuck there and waited quietly. At this time, a locust crawled out from the gap in the corner of the wall. He hesitated and worried about the danger. Now that he has stuck to the spider's web, he has become a delicious delicacy for the spider. Seeing this scene, many questions came to my mind: Aren't the locusts throwing themselves into a trap? Are spider webs sticky? Why do locusts stick to it? A series of questions puzzled me and I was depressed about this problem all day long. Suddenly, an idea came to my mind. I quickly turned on the computer and watched it with great interest. It turns out that spiders are sticky and can stick to certain objects. The spiders pull up the silk and eat it. Then they weave a web out of silk again, waiting for prey motionlessly.
After this discovery, I created something from the spider. "Insecticide net" uses the principle that spider webs can stick together strongly to create a web with super sticky function. If this net finds a bug and identifies it as a pest, it will quickly suck the pest over, grab it firmly, and then eliminate it. By catching them again and again in this way, there will be a lot fewer pests, and it can also reduce the reproduction of a large number of pests.
Scientists used dragonflies to invent airplanes; they used blue whales to invent ships; they used bats to invent radar. Everything in nature needs us to observe and understand.
Look, my proud work, I have done the farmer a big favor.
Animals really are human teachers!
Please refer to it, I hope it will be helpful to you
A short story about computers
"Hey! Look at this guy growing up Well, you have learned to be considerate!" Anyone who sees their children understand what is going on will say this. Now let me tell you my growth story.
When I was six years old, When I was ten years old, I just entered the middle class of kindergarten, but I already knew the word "considerate". One night, I was watching TV at home with great interest. Suddenly, lightning flashed across the sky, "rumbling" and thunder. It was deafening again, and the electricity didn't come out of nowhere. It was like a mouse met a cat and hurriedly ran back to the hole to "take refuge". The room suddenly fell into darkness. Grandma hurriedly found the "savior" - a flashlight and a candle, and lit the candle. After turning on the flashlight, let us finish our meal quickly and go to bed. I ate dinner in a hurry and was about to go to bed. Suddenly I saw my grandpa eating in a dark room with a rice bowl. There was no light from the candle. What happened to grandpa? Where to eat? I think there was a power outage before, and my grandpa used the flashlight while I was eating. So, I walked into the room with a flashlight to light up my grandpa. When my grandpa saw that it was me who was lighting the light for him, he happily pulled me over. Said: "Haha, you are sensible, you have learned to be considerate to others!" As he said that, he touched my head again.
Look, I am quite sensible. Because I have grown up slowly. That’s it.