Please allow me to open this charming poem and show the great ambition of our ancestors to fly!
From 2288 BC to 2255 BC, it is said that in ancient China, a man named Zuo (the upper left corner of the word should be the left half of the word "drum" instead of "branch") tried to kill Shun, so Shun jumped down from the top of the burning granary with two hats in his hand and fled. This is the earliest statement about the application of parachute deceleration principle in history books.
2205 BC-2 BC158 BC
Over the years, sails and fans have appeared in China and have been applied. This is the most primitive folk practice related to aerodynamics.
Around 2000 BC, people in China invented kites.
850 BC
1998, Brad, an Englishman, jumped from the Temple of Luo with his arms tied with bird wings and tried to fly over the city of London. He fell to the ground and died. This is an early attempt by ancestors to realize their dream of flying.
668 BC ~ 625 BC
Now, it is said that an Etana living in Babylon tried to soar in the sky on an eagle, but the result was definitely a failure.
468 BC to 376 BC
Mozi in China during the Spring and Autumn Period and the Warring States Period is said to be a famous craftsman of Lu in the Spring and Autumn Period and the Warring States Period, that is, the famous "Lu Ban" (770-48 BC1.
It took three years to make a wooden bird and made a test flight. It is said that "it will not land for three days." This is the earliest record of an ancient experimental airplane model in China.
Around 400 BC
According to legend, Plato's relatives and friends and Chilean scholar Arcetas also tested a "wooden bird", which may actually be today's airplane model.
287 BC ~ 2 BC12 years
In, Archimedes, a great mathematician, discovered the law of buoyancy in hydrostatics, which provided the most primitive theoretical basis for the later development of lighter-than-air aircraft.
From 220 BC to 206 BC, there were acrobatic performances similar to skydiving in the court of Han Dynasty in China.
About 200 BC, it is said that Han Xin made a kite in the Western Han Dynasty, and Zhang Liang took it to fly.
200 BC
For many years, it has been said that the size of Weiyang Palace in Chang 'an City was measured by kites in the Western Han Dynasty, which is the earliest example of the application of airplanes in life.
BC 140 ~ 88 BC
China invented candle lanterns in the period of Emperor Wu of the Han Dynasty, which can fly to the sky as a signal tool for the army. According to legend, at that time, in Huainan area, someone did an experiment to pour hot air into empty eggshells and let them fly in strong winds. This is the earliest attempt to take off with a hot air balloon.
9 ~ 23 AD
In the era of Wang Mang in China, it was said that some people made wings with feathers of big birds, covered them with feathers, and used organs (that is, mechanical structures) to "fly a hundred paces". It is said that this move is to get a glimpse of the Huns and jump off the tower for gliding flight.
Probably in this era, an Italian actor flapped the wings of two birds and tried to fly, but failed and died.
78~ 135
In the Eastern Han Dynasty in China, the famous inventor Zhang Heng made a flying wooden bird, which was equivalent to the original airplane model.
265~3 16
Ge Hong of Jin Dynasty in China discovered the phenomenon that birds can glide without flapping their wings, and explained for the first time that eagles spread their wings to soar with the help of the lift principle of updraft.
From 265 to 420, China Jin Dynasty invented the bamboo dragonfly, which is recognized as the most primitive form of helicopter in the world.
549
In 1860, kites were first used in military operations. At that time, Jinling, the capital of Nanliang, China, was trapped. Prince Xiaogang and Minister Yang Kan took off with paper kites in an emergency, flying Zhao Shu from the battlements. Unfortunately, they were shot down by the enemy.
In 559, according to legend, during the Northern Dynasties in China, there was a man named "Huang Touer" who successfully escaped with a kite.
6 18~907
In, Han, a soldier of the Tang Dynasty in China, made a wooden bird, which could fly "30 feet high and 200 paces away" and had an "organ" (referring to the driving mechanism) in its abdomen. It was a successful aviation model in ancient times.
In 782, when Zhang Pi, commander of Linshu in China in the Tang Dynasty, was besieged by Tian Yue, he flew a kite and raised it.
"More than a hundred feet", asking for help from the outside world, finally made reinforcements arrive.
A dream trip in the composition of the fourth grade of primary school
Last night, I had a particularly beautiful dream.
I flew the most beautiful spaceship all the way to the moon.
The moon is not flat at all, and there are many round hills.
I was wearing that heavy space pilot costume and jumped up and down with a light jump.
I asked the person who came with me, "What's the matter?" I was angry that they didn't answer at all.
Later, after my investigation, I learned that there was no air on the moon and the sound could not spread, so they couldn't hear me asking them.
Later, I found several minerals on the surface of the moon, some larger and some smaller. In short, it was the first time I saw them, and I thought they were all normal, but brighter than the stones on land.
After a while, we returned to the beautiful spaceship.
Ten hours later, we flew back to earth together.
Ah! How interesting this dream trip is! I really hope it can come true! I must study hard scientific and cultural knowledge to make this dream trip come true.
I have a dream.
I have a dream. Everyone has a dream. It is what everyone yearns for.
The life of people without dreams will be empty.
But dreams always change with the progress of thought.
When I began to have memories, I had a dream.
I wish I had money. The adults asked, "Young man, this is a great dream. What are you going to do with the money? " "I'm going to buy chocolate." "What if you have a lot of money?" "I will buy a lot of chocolates." "What if you have inexhaustible money?" "I will buy the factory that makes chocolate.
"Indeed, when we were young, we were innocent and had a kind childlike innocence. Happiness and happiness were a constant movement.
When I was a child, I had a dream.
I hope I can become a kite, float in the blue sky, and then slowly fall.
At that time, I liked to play on the green grass with my companions, and I often chased the blue sky and white clouds, which made me laugh and dreamed colorful dreams all day.
I had a dream when I was studying.
I hope to have a basketball; When I am holding a basketball, I want a football. When I was playing football, volleyball became my pursuit again.
When another dream comes true, I believe that the dream is not far away from me. As long as I play childish, my dream will come true.
Step into primary school, middle school and high school slowly. ...
The greater the pressure, the less fantasy. All I know is to study hard and lose those happy notes.
When I am sensible, I have a dream.
I hope I don't have much homework to do every day.
Playing time is deprived bit by bit, while 40% of us are confined in the classroom and spend a lot of time studying.
But in the face of learning, it is still a vague understanding.
As the saying goes, "Confusion is hard to change", and the understanding of things has also developed from feudalism to capitalism. The older I get, the more I feel that my point of view is right.
When I started walking up, I had a dream. I hope I can become an excellent student and win many awards. When you get home, you can get praise from your family; Can get the teacher's affirmation at school; Can stand out among classmates; Can be said to be recognized as a good boy in everyone's eyes.
However, gradually, I found that this dream can not be realized by childishness.
After that, I learned to struggle.
It's really leisurely to go home from school, listen to music, eat and go back to school after a busy day.
This kind of life is monotonous, and you may sometimes miss many friends. Sometimes I still have a pair of sleepy eyes when I am in a hurry for class.
I like fashionable school uniforms and want to have a look around.
Sunday is really short, and the child's temper really wants to make mistakes. Gradually understand the hardships and dreams of being a man is really difficult. Fortunately, I will try to see that everyone is getting up early and getting greedy for life, so as to grasp that I am no longer loose.
Today, I have a dream that I can be admitted to a favorite university, preferably in Beijing.
I look for food in this dark water tank in high school for my dream, and I struggle to find food every day to enrich myself and work hard for a better future.
Dream is like a seed, planted in the soil of "heart". Small as it is, it can take root and blossom. Without dreams, it is like living in a desolate Gobi, cold and lifeless.
With dreams, there is pursuit, there is the goal of hard work, and with dreams, there is motivation.
It will push people forward, and maybe there will be countless setbacks on the way to realize their dreams, but it doesn't matter. If you fall, get up and move forward for your dream. After all, the future is created by ourselves.
The planet I dream of going to.
My ideal, the ideal of being an astronaut, is indispensable in the process of our growth, and everyone can't help thinking of his own ideal. Ideal is a fire, lighting the extinguished lamp; Ideal is a lamp that illuminates the road at night; The ideal is moonlight, which will accompany you until dawn. Everyone has his own great ideal. My ideal is to be an astronaut.
When I was a child, I was interested in everything that could fly, including models. I collect all kinds of toy planes and rockets ... I am even more proficient in paper cutting. I immediately sat up refreshed, serious and focused, and everything outside didn't attract my attention. In a blink of an eye, more than an hour passed.
I look at him every day, like a treasure, and others are not allowed to touch him. Once again, my mother accidentally put him on the ground and stepped on it, and it was a mess. I was sad for many days and didn't get rid of it ... physical strength and endurance are the basic qualities that astronauts must have. In order to meet the physical fitness of future astronauts, now I have quietly facts and actions. Insist on playing table tennis every day, run ten times around the playground, and strengthen exercise at any time.
At the same time, profound knowledge is a necessary condition, knowing all parts of the spacecraft, knowing the details that should be paid attention to on the spacecraft, and remembering what you have no time to do, so as to get out of trouble on the spacecraft and successfully complete the tasks assigned by the state.
In the age of hunger and cold, the ideal is food and clothing; In the era of food and clothing, the ideal is civilization; In chaotic times, the ideal is stability; In a stable era, the ideal is prosperity.
Ideals are like pearls, one after another.
Great ideals are the key to everything. Let's have it.
2 1 century, what fantastic ideas do you have and how should you realize them?
Since the ascent of Shenzhou VII, I have envied watching astronauts walk freely in space, but it needs good conditions. What should I do? So I want to invent a spaceship.
This kind of spaceship is silver, and its shape is all curved and streamlined, so that the flight speed can reach the highest.
There are colorful buttons in the spaceship, which are important parts to control the whole spaceship.
The first button is yellow.
When you press it, the fog from the purple tube in the middle of the spaceship suddenly fills the whole spaceship. After a while, the fog gradually dispersed, but the air in the spaceship had a faint fragrance.
It turns out that fog has dissolved the nutrients needed by the human body into the air. We don't need to eat at all, just need to breathe a few mouthfuls of nutritious air.
The second button is red. When you press it, a little smoke will be ejected from the small hole in the bow, floating around in the air and finally disappearing into the spaceship.
At this time, all the objects floating in mid-air in the spacecraft fell down, and the spacecraft was full of gravity.
It turned out to be a universal gravity wire, which can create gravity.
The third button is blue, and its function is to move instantly.
If you press it, a tape recorder will appear on the ship.
If you want to go to Mars, all you have to do is say to the tape recorder, "Mars.
"The spacecraft will reach its destination immediately within 0, 1 second (this function consumes a lot of energy).
The fourth button is green, which can turn the spaceship into intelligence.
The spaceship drives itself to find another planet suitable for human habitation.
If the meteorite collides with itself at high speed, the spacecraft will launch SWY-type crushing laser to crush the meteorite and continue to fly.
In addition, the spacecraft can also collect space junk and use it as fuel to push the spacecraft forward, and the burnt smoke will become fresh air and be input into the cabin.
In the cabin, if you need a bed, all you have to do is aim at the microcomputer at the stern and type the word "bed". A beam of light immediately gushed out of the computer, and a bed appeared where the light shone.
Although this kind of spaceship is just a beautiful imagination of mine, I believe that through people's unremitting efforts, someone will soon study it.
The 400-word composition about dreams contains how hard you work for your dreams.
Dreams need hard work. A 400-word dream is what everyone needs. If there is, we must work hard to achieve it. Otherwise, it is useless to have them.
Dream, you need to stick to it, don't give up halfway, even if it is difficult to achieve, don't be discouraged, don't give up, continue to stick to it, continue to work hard and cheer for yourself.
Dreams are like harvesting fruits. If you want to harvest the fruit, you must plant the seeds in the soil according to the season. Spring is coming, you need to water and fertilize the soil frequently, so that it can receive sunlight, absorb rain and dew and frost.
He will thrive.
People can't idle around every day, they should have a rest when they have the chance.
If someone hits you, tell him loudly: "Who says I can't, I can, don't underestimate me!" " "Remember to speak loudly.
Do whatever you want in the future, read the book well first, and study hard when it is time to study. Only when you have accumulated a lot of knowledge can you think about the future.
First of all, we must do a good job in the process, and the results will naturally come out.
For example, if you want to be a Chinese teacher, you must be knowledgeable; If you want to be a painter, you must paint carefully; If you want to be an astronaut, you must have good physical fitness and keep your eyesight; If you want to be a doctor, you must be calm.
Life should have a plan, a plan and a goal, and then stick to the goal to complete the task, so that the goal will be close to us, and the goal will be realized with hard work, and the dream will no longer be out of reach.
My dream is to be an archaeologist.
What I have to do now is to learn my knowledge well first; We need to learn more about history and cultural relics.
An essay on the topic of "flying"
"I have a pair of invisible wings," Ji Bolun said. There is no wish that cannot be realized.
Indeed, as long as we believe in ourselves, even if the sky is dark and the road ahead is dim and confused, the confident invisible wings will take us to the distant place in our dreams.
Self-confidence is the first step for successful people.
Once upon a time, there was a young man who was down and out, but he repeatedly ran into a wall when he was looking for a job.
Finally, he had to ask a friend of a friend for help.
The man asked the young man, can you type? The young man lowered his head.
Do you have any special skills? The young man shook his head shyly.
Finally, the man asked the young man to leave contact information.
The young man wrote down the address in a hurry and turned to leave, but he was caught.
The man smiled and said, young man, you have one advantage. Does your handwriting look good?
When young people are stunned, it is also an advantage to write beautifully? Young people's eyes are shining with hope, and those invisible wings are slowly unfolding.
Young people believe that they will make a difference, start working hard and finally achieve something.
He is Dumas.
If it is not self-confidence, the literary and art circles will lose a great writer and a sensitive and true soul.
It is with the invisible wings of self-confidence that Dumas climbed the peak of art and created the brilliance of life.
Self-confidence is the golden key to turning ordinary into great.
Joe girard, the greatest car salesman in American history, still holds an amazing record of selling six cars a day.
When asked about the secret of success, he raised a confident smile, because I believe I am the best! It is precisely because the torch of self-confidence in Gillard's heart has been burning, so he throws business cards to the world, sells himself, listens to others and smiles. Finally, he believes that these invisible wings carry his dreams and accompany him to the top of the pyramid of success.
Eleanor Roosevelt, the former first lady of the United States, once said, "No one can make you feel ashamed without your consent.
Walking on the rugged road leading to tomorrow, we have no reason not to believe that we will create miracles.
Only by affirming yourself first can we light up our hopes and fly our dreams.
Self-confidence is a kind of courage that doesn't care about failure, a kind of smile that doesn't care about rejection, a kind of calmness that calmly deals with all difficulties and obstacles, a kind of calmness that washes away extremes, and an inspiring force.
Perhaps, this great faith is still curled up in a corner of your body and sleeping.
All right, wake it up now.
Pack your bags, spread these powerful invisible wings and set sail and fly! These invisible wings carry my dreams, yours, and everyone's dreams, crossing swift streams, crossing barren deserts, braving the wind and waves, and flying to my dream place and unknown distance! Believe in yourself! Believe me, I have invisible wings! ———————————— Give me something else://wenku.baidu/view/6dea2d7b16884868762d6f0.
My future dream junior high school composition
It was 2080 1 month 10, and the robot around me told me today's arrangement-to go to the United States and Japan to explain China's newly invented microcomputer, a computer the size of a small button, which can be put in my pocket.
I got on the super-high-speed plane and arrived in America in a few minutes. My robot assistant and I got off the plane, stopped a red car and said we were going to the White House. Soon, we arrived. When we got off the bus, I gave the driver a fare of $65,438+00, but the driver asked me in fluent Chinese, "Sir, do you have China RMB?" I was shocked: how can an American speak authentic Chinese? What about the RMB? The driver argued, "China's economy has developed rapidly, which has surpassed that of the United States and Britain by seven or eight times. Now one dollar can be exchanged for eight dollars, and it is illiterate in the United States! " Oh, after thirty or forty thoughts in the laboratory, China has developed so much! "When I entered the White House, the President of the United States met me and signed the contract with great pleasure.
At lunch, I learned that the political leader of the United States was actually Hua Zhenxing, his classmate in middle school. He once gave a speech on the administration of the president of the United States when he was a student, and now he actually sits on the throne of the president of the United States.
Farewell to my old classmate, the President of the United States, I flew to Japan to visit the China Research and Invention Museum established by China in Japan, which contains dirty clothes, future cars and so on.
Non-dirty clothes are made of a chemical fiber, which can automatically remove oil stains, react with oil stains to generate a pollution-free gas, and also allow dust to bounce automatically to achieve the effect of non-dirty; The future car is a small single-person flying car that can be placed on your balcony. It can fly 25 million meters per minute and circle the earth in a short time. It doesn't need oil or electricity, just wind or solar energy.
Next, I went to my residence on Mars ... but a * * * woke me up. It was just a dream! This dream, I think it will come true! We just need our generation to work hard, work hard and work hard again.
My dream composition is 800 words.
What is the dream? Dreams are the driving force of human progress! My dream is not to have wealth, nor to get what I want. My dream makes me happy.
My dream, very hard, but very happy.
Influenced by my father when I was a child, I fell in love with table tennis.
Watching my uncles fall to pieces one by one, I want to be as free as them.
I fight for my dream.
Strive for happiness.
"My future is not a dream, I have lived every minute seriously; My future is not a dream.
My heart is beating with hope ... There are flowers in spring and fruits in autumn. Life without dreams is boring, and life without dreams is tasteless.
Sometimes, I think my dreams are empty and out of reach.
When I stood on the stage of the competition, my skills were recognized by my relatives and partners, especially when an uncle praised me for playing table tennis well last time. I felt that my dream seemed close at hand.
At that time, I secretly made up my mind to realize my dream, stand on a bigger "stage" and let more people share my happiness.
I really know that table tennis is in the third grade. My father and I play table tennis. I accidentally learned to spike. I watched my father smash it hard and forcefully. I envy it. I want to be like my father, even more like my father.
Only sweat can be rewarded. One day, I finally won two goals from my father, which was infinite happiness for me and I enjoyed it.
At the same time, I'm trying. While working hard, my skills are getting better and better every day.
Genius is one percent inspiration and ninety-nine percent perspiration.
But that one percent inspiration is the most important, even more important than that 99 percent sweat.
Dreams are eternal lights in everyone's heart. Since I came to this world, it has been illuminating the road ahead of me, giving me courage and strength, and always making me stand up after every fall or failure.
Sima Qian, you were born in a big house, but you suffered a lot on earth, but you can't erase the blood from your heart.
You turned yourself into a silkworm in historical records, and let the history of China for thousands of years show in the hearts of future generations. You put your excellent soul into this work, making it a "masterpiece of historians, a poem without rhyme", so that future generations can enjoy its nutrition.
It is the dream that drives you, and the dream is your motivation.
Without a dream, it's like a car without gasoline.
Du Fu, you are concerned about your country and people, and your white hair is a constant landscape. It stops on the ancient westerly road where you used to wander. You turn your soul into countless excellent poems and let them drift in the tunnel of history.
Let future generations benefit endlessly, and I want to learn from you.
No matter doctors, soldiers, writers, poets or ordinary people, as long as they have dreams and unyielding beliefs, their dreams will never fade and shine forever.
This is my dream, the billowing waves in my heart, the beacon to guide me forward, the cradle of my growth and the source of my motivation!
An essay on "the interpretation of dreams"
For example:1In July 1967, "Apollo 1 1" realized the dream of human landing on the moon and achieved the most brilliant results in lunar exploration.
Armstrong said at that time: "One small step for me is a big step for all mankind.
"This has long been a well-known saying all over the world.
Today, the successful manned space flight in China proves to the world that it is no longer a dream for China to explore the universe.
China is confident and capable of developing the space industry.
Since then, a new chapter in history has been torn apart.
Exploring the lofty universe has brought many endless reverie to mankind.
Nowadays, exploring the universe is no longer a human dream.
However, after the dream, how many scientific workers have gathered to work quietly for China's space industry.
Whether it is "two bombs and one satellite" or "Shenzhou V" and "Shenzhou VI" today, it is a summary of their numerous failures and their efforts and struggles.
Although we don't know them, they have the same name: China astronauts.
They have always regarded the development of the space industry as their lofty mission and sacred duty to serve the motherland. They work hard, struggle hard, challenge the limits, and show strong patriotic feelings and infinite loyalty to the party and the people.
Manned spaceflight project is a concentrated expression of the high-tech development level in the world today, an important symbol to measure a country's comprehensive national strength, and it also shows that it is an indisputable fact that the motherland is becoming stronger and stronger.
However, we should also be soberly aware that due to historical reasons, China's scientific and technological development level still lags behind developed countries, and some areas are still in a backward state. It is an indisputable fact that there is a shortage of talents and brain drain.
As the master of China in the new century, it is our bounden duty to advocate science, arm our minds with scientific knowledge and revitalize the motherland with science.
It is precisely because we shoulder the heavy responsibility of the motherland's soaring that we should advocate, love and explore science from an early age.
The future of the motherland is waiting for us to build, and the vast universe needs us to explore more.
Students, let's carry forward the aerospace spirit, advocate scientific ideals, establish the ambition of serving the country, and strive for a bright future and brilliant tomorrow!
Please indicate the source for reprinting. Briefly describe a story about human efforts to realize the dream of flying.