I understand from the revelation of nature, although as long as we step on their lives lightly, there will be no more. However, from ants, I have gained a valuable quality worthy of our human learning-unity and cooperation.
I remember once, when I was walking in front of my house, I suddenly saw a biscuit on the ground. There was a little ant standing next to the biscuit. I thought, What is this little ant doing? So I squatted down curiously and carefully observed the little ant. I saw that he used his tentacles to top the biscuit first, but the biscuit didn't move at all. This move made me understand that it was going to lift this biscuit. I continued to observe, and it tried to push the biscuit forward with its front foot, but the biscuit just didn't move. Finally, it struggled to carry the biscuit on its back, but it was too much to bear once it was carried, and then it was put down again. Although the little ant didn't leave, it could be seen that it was disappointed. The little ant walked back and forth in front of the biscuit again, as if thinking about something, and then quietly left. I thought: this little ant must have given up, and I have nothing to see. Go home. Just as I got up to leave, I suddenly saw a large group of ants coming towards this biscuit, and it was the little ant who took the lead! Under the command of the little ants, the ants lined up in two rows on both sides of the biscuit, the big one was carried on the back, and the small one was topped with tentacles. Finally, the biscuit was lifted. I kept watching the biscuit and the ants and watched them disappear on the green grass.
Small ants have this spirit of perseverance, unity and mutual assistance, not to mention us? . Therefore, we should learn to unite and cooperate with each other and help each other, instead of going our own way. This is the inspiration I got from the matter of ants moving food. Let's remember Zweig's words-if all human work is worth doing, and it should be done well, we should concentrate on it.
The day before science class, the science teacher asked us to bring a bunch of rape flowers tomorrow. Huh? Why did you bring rape flowers? We returned home with curiosity.
The next day, in science class, Mr. Chen mysteriously said to us, "Do you want to know what you brought rape flowers today?" "think!" We answered with one voice. "That is to dissect rape flowers." I only know that animals and human bodies can be dissected, but I have never seen plants can be dissected. I carefully observed the petals, Huang Cancan's, very beautiful! But it is as thin as a piece of paper. What a pity that such a beautiful flower was casually dissected! I can't do it, but seeing that my classmates have already done it, I have to start the experiment!
First, I took a general look at the whole flower. A rape flower has four petals arranged in a cross, and the middle stamens are bent together, as if talking in whispers. I picked up tweezers and carefully nipped out petals, sepals and stamens, and then put them back on the table carefully, as if I were carving a dish of flowers carved from shredded radish. Hard work pays off, and the rape flower is finally dissected by me completely! A * * * has four petals, four sepals, six stamens and a cylindrical pistil. The teacher also told us that flowers without petals, sepals, stamens and pistils are called incomplete flowers. Flowers with only stamens but no pistil or only pistil without stamens are called unisexual flowers. When the pistil is stained with the Chinese medicine of stamens, it will bear fruit ... It turns out that plants can reproduce like us!
What a lot of gains today! It turns out that science class is so interesting!
Bionics is a science, that is, imitating a certain creature and inventing something useful for human life. Let me talk about how the plane was invented!
The people who invented the power plane were two young brothers who repaired cars in Dayton, Ohio, USA. The elder brother's name was Wilbur. Wright, my brother's name is Orville. Wright.
When the two brothers invented the power plane, they often lay on the ground and watched the eagle soaring in the sky. They envy eagles very much, and they fly freely and comfortably in the blue sky. They often think that if they can grow wings and fly in the blue sky, how happy and free they are!
The Wright brothers studied the works written by the famous flying star of Germany, Lerensal, and a famous saying of Lerensal deeply impressed their hearts: "Whoever wants to fly must imitate birds."
The Wright brothers imitated birds and made a glider. 1900 Wilbur Wright took the glider and flew in the air for a while. However, gliders can only fly by wind like kites and cannot fly in the air for a long time.
So the Wright brothers began to make their own power planes. They put the glider on the motor, put the propeller on it, and removed the glider and put it on the wing of the power plane. The Wright brothers called the modified plane "Flight". However, many people shook their heads and called it a "broken birdcage".
19031February 17 "Flight" successfully flew in the air for 8 seconds, which was the first flight of a powered plane in human history. From then on, the Wright brothers were deeply inspired and continued to improve and improve the power plane. Finally, Wilbur Wright flew five times in the air, the shortest flight was 12 minutes, and the longest flight was as long as 78 minutes.
It seems that we should also learn from the "teacher" nature!
Nature is our teacher, and it gives us many inspirations, just like a universal book. As long as you read it carefully, you will be greatly inspired and invent many things.
For example, Lu Ban was inspired by a leaf and invented a saw. There is also a story in it!
One day, Lu Ban went up the mountain to look for wood. Suddenly, his foot slipped and his hand was accidentally scratched by the thatch beside the road, and he lost a lot of blood. How can such a humble thatch be so sharp? He forgot the pain of the wound and studied the thatch beside him carefully, and found that the edge of the thatch had sharp little teeth. He was suddenly greatly inspired: if you make a tool with sharp teeth like this with iron sheet, wouldn't it be easy to saw the wood? He thought about it and couldn't wait to ask the blacksmith to build it and invented the saw.
In addition to saws, scientists also invented radar through ultrasonic waves emitted from bats' mouths. Planes that used to sail at night always collided. Once scientists saw a bat flying freely and smoothly in the dark, they took a bat to do an experiment to see how the bat could tell the direction. After the experiment, it was proved that bats don't rely on their eyes to determine their position. Later, scientists covered their mouths and ears and found that bats bumped around like headless flies. Experiments have proved that bats determine their position by the ultrasonic waves emitted by their mouths hitting obstacles and then returning to their ears. According to this revelation, a radar was invented, and the plane can fly at night.
Nature is really our teacher! As long as we learn from it with an open mind, we will get more enlightenment and benefit mankind!
In the bathroom, in a dark place, there is always a small figure passing by-cockroach.
Everyone is familiar with cockroaches. A pair of touch, three pairs of feet, brown body, love walking around the house. When I found them, I would pick up the broom and chase them around, but it was good, and it easily dodged from left to right, which made me hard to prevent, and I was blind and ran away in an instant. I am both annoyed and surprised: "I can't run with big steps, but the little cockroach can easily escape. Why?"
This problem has been bothering me. Once I suddenly saw a message on a TV program. It actually has two heads, but that's no reason. Can two heads run faster than one? Maybe like the subway, one end controls one direction? With curiosity, I found the information on the internet.
It turns out that cockroaches run fast because the nerve center of cockroaches is not in the head, but at the root of big feet, and there are fine hairs on six legs, which can detect tiny vibrations, so they can react very quickly when danger comes. No wonder I can't outrun it. It turned out that it knew I was coming. Seeing this, I thought of a wonderful invention: put the detective nerve on the cockroach's leg on a small silver screen, then put it on a small watch and distribute it to every child. When bad people come, the screen will be "thumped" red, and when good people pass by, the screen will keep a fresh green color. With this, no children in the world will be trafficked!
My father took me to the sea world. I saw all kinds of strange fish, such as rays, bare-chested eels, snake eels, jellyfish, squid, squids, great white sharks, giant snapper, grouper, butterfly fish, stickleback fish, parrotfish, stickleback fish, flounder and squid.
Among them, the great white shark is the most striking. His body is streamlined, big and fierce, and has strong resistance, and there is an anticancer substance in his body. If humans can extract it and reproduce it, then people will not be afraid of the attack of cancer, and cancer will no longer become an "incurable disease". I became interested in this great white shark.
When I got home, I looked through books to find information about sharks. When I saw it, I was shocked: sharks have lived in the ocean for more than 300 million years, and the speed is as high as 70 kilometers per hour. When scientists examined the skin of deep-sea sharks under a microscope, they accidentally found that the scales of sharks were fan-shaped and had small grooves. In the past, people thought that the smoother the surface, the smaller the resistance. Scientists put hundreds of model scales at different angles. Tests show that the friction loss is less than that of smooth surfaces 10%. If this new discovery is used in bionics, the aircraft shell will be improved, which will reduce the fuel consumption of each aircraft by 350 tons per year. If the passenger planes traveling around the world are equipped with this kind of shell every year, the fuel saved can reach billions of dollars, and the carbon dioxide and nitrogen oxides will be greatly reduced, improving the global greenhouse effect.
Nature is really a good teacher for human beings! People have learned a lot from nature and benefited people. We should protect nature and the ecological environment!
The revelation of nature in the fourth grade Composition 7 The mystery of nature is like an invisible hand pulling us to explore, think and discover all the time. In the past few days, I have made an interesting discovery. Do you want to hear it?
A few days ago, my classmates and I were playing downstairs. We were having fun, but their mother told them to go home. I'm the only one left on the grass. I'm going to go home after a walk when I'm bored. Suddenly, a small ant caught my attention, and I stopped to observe it. This little ant is about the size of mung bean. Its whole body is black, and it is difficult to find it at night. Its head is bigger than ordinary ants, so people call it big-headed ant.
I saw it pushing the bread crumb hard with its tentacles, but the bread crumb did not move. It pushed the bread crumb hard with its front feet, but the bread crumb seemed to be against it and remained motionless. The big-headed ant looked at the bread crumbs, turned around it several times, and left by himself. I think: this big-headed ant must have given up, there is nothing to see, go home! I was just about to turn around and leave when suddenly a group of ants came rushing towards the bread crumb. As soon as I saw it, it was the big-headed ant, who took an army of ants to PK this bread crumb. They first lifted the bread crumbs, and then one person moved a small piece of bread crumbs, each with a good division of labor, and soon moved the bread crumbs.
It is impossible for a small ant to lift this crumb of bread, but when many hearts think together and work hard in one place, it condenses into a powerful force-the power of unity and mutual assistance. Ah! How powerful! We humans should learn to unite and cooperate like ants, and help each other instead of going our own way. This is the inspiration I got from the matter of ants moving food.
In the past, people wanted trees to grow well, so they "cleaned up" the weeds beside the trees, even the dead branches and rotten leaves beside the trees. Everyone looked at it and their hearts were full of joy.
Several years have passed, and there are fewer and fewer leaves in the trees.
What's going on here? It's people's whimsy that brings disaster to trees.
It turns out that everything in nature is interrelated. In this way, we can keep the balance of nature. Dead branches and leaves look like dirty things. In fact, after they rot, they can increase the fertility of the soil. There are many birds here, but people hoe the weeds of trees, birds fly away, pests attack the forest, and trees are gradually destroyed.
Enlightenment of lotus leaf
Humans have been able to hold umbrellas to shelter from the wind and rain since ancient times, which were invented by human beings through careful observation of nature.
For a long time, some children walked in the rain with a big lotus leaf on their heads, which inspired people to invent hats. However, people often get wet when they go out every day, which inspired people to build pavilions, but pavilions are not convenient for people to travel, and the weather changes three times a day, so people often get wet by the rain. Finally, people put a shelf on their hats according to the pavilions and put on handles, so there was the first "umbrella" in the world.
Science is difficult to learn, and it can be successful only through careful observation and constant efforts.
On Wednesday afternoon, the teacher gave us a very simple homework, and let us go home to find information about "Nature Revelation".
As soon as I got home, I immediately began to look for information about "nature revelation", and the information on the internet made me dizzying. I carefully selected several enlightenments of great significance to mankind. I immediately copied these materials down for the Sunshine Sports on Thursday afternoon, and we told the students what we were looking for. Many students said some information that I didn't find, and I was most impressed by it. One student said that people have successfully developed an electronic frog eye based on the visual principle of frog eye. This kind of electronic frog's eyes can accurately identify objects with specific shapes like real frog's eyes. The anti-jamming ability of radar is greatly improved after the electronic frog eye is installed in the radar system. This radar system can quickly and accurately identify aircraft, ships and missiles with specific shapes. In particular, it can distinguish between true and false missiles and prevent the fake from confusing the real.
Electronic frog eyes are also widely used in airports and traffic arteries. At the airport, it can monitor the take-off and landing of aircraft, and give an alarm in time if it is found that the aircraft is about to collide. On the main roads, it can direct the driving of vehicles and prevent vehicle collisions. Other students also said something that impressed me deeply. It's a pity that the teacher didn't let me go on stage to tell my own information to the whole class. I think the information I copied is not as good as that of other students.
This profound comprehensive practical activity, I think there would be no high-tech invention without nature, so we should protect nature and our teachers.
The revelation of nature in the fourth grade composition 10 Many things will be inspired by nature. This is not the case. When I observed ants, I found that ants persisted, which also gave me a revelation.
On a sunny morning, I sat leisurely on the stone bench in the community and enjoyed the beautiful scenery in the morning. Just when I looked down inadvertently, I suddenly found a white thing moving slowly. I took a closer look, and it turned out that several ants were moving a small crumb. I thought: there must be an ant nest around here, otherwise, why do ants move food? Driven by curiosity, I looked around. In a short time, I found the ant nest hidden under the flowers.
I continued to observe the handling of ants. I saw that a few small ants were carrying a piece of bread crumbs and climbing relatively fast. I really want to call the ants "Hercules"! After a while, a little ant ran out from under the crumbs and hurried into the nest. Then, a big and strong ant climbed out with the little ant. It seems that this little ant is looking for help.
With the help of the big ants, the little ants are much faster. I guess they must have shouted "121, 121" as we played during recess. After a while, the ants came to the hardest stage-climbing the small soil slope! And on the small soil slope is the ant nest. I saw the ants still don't give up, trying to lift up step by step, and one or two of them will take turns running to the back of the team to support them. Oh, what a spiritual guy! I watched the ants work so hard that my love broke out! I pushed the ants up with a twig, and in the blink of an eye, the ants arrived at the nest mouth! Finally, with everyone's concerted efforts, the ants finally transported the crumbs to the ant nest.
Although ants are small insects, this humble little guy has inspired me: unity is strength, and persistence is victory.
1 1 human beings have improved the phenomenon of wing rupture due to violent shaking by observing dragonflies, and greatly improved the sailing speed of seagoing vessels by observing whales.
Humans also invented electronic frog eyes by observing frogs. A long time ago, bionics found that frogs have special eyes, so they became interested in frogs. Bionics found that frogs are sensitive to moving things, but they turn a blind eye to static things, and they can't move when they encounter light. Why? After repeated experiments and research, bionic scientists finally discovered the mystery of frog eyes. It turns out that nerve cells in frog eyes are divided into five categories, one of which only reacts to color; The other four types respond to a certain feature of the moving target and can transmit the decomposed feature signal to the visual center of the brain-the optic tectum.
There are four layers of nerve cells on the optic tectum. The first layer reacts to the contrast of moving objects. The second layer can extract the convex edge of the target; The third layer only sees the edge of the target; The fourth layer only cares about the light and shade changes of the front edge of the target. These four layers of features are like four pictures on transparent paper, which are stacked together to form a complete image. Therefore, frog's eyes are very sensitive to moving things.
According to this phenomenon, the electronic frog's eye invented by human beings, like a real frog's eye, can accurately identify objects with a specific shape. After the electronic frog's eye is installed in the radar system, the anti-jamming ability of the radar is greatly improved. This radar system can quickly and accurately identify aircraft, ships and missiles with a specific shape, especially to distinguish the truth from the false and prevent the false from confusing the true.
Therefore, there are still many things in nature that we need to learn. As long as we observe carefully and think more, we can get greater gains.
Many people say, "Nature is the teacher of human beings." I have always denied this sentence before. Isn't it said that human beings are the most advanced creatures in nature? Why do you say that nature has surpassed us now? Until that day ...
I finished my homework and prepared to go to the yard to practice skipping, only to find another big wave of ants moving sand and stones in an orderly way at the corner. Their team is very neat, dense and huge. This aroused my great interest, so I became "Fabres" and observed it. Oh, so they are nesting for themselves! But what surprised me was that their division of labor was so clear and orderly, just like a well-trained big army. They move, move, move, move, and unite as one.
Nearly an hour passed, and the great project was finally completed. I was dumbfounded at the whole process, and I was completely impressed by their perseverance and perseverance!
Think about us human beings again: although we humans are the most advanced creatures in the world, if we don't unite, we will eventually be fragmented and accomplish nothing.
In addition to ants, there are many inspirations in nature, such as: flowers standing upright in the wind and rain tell us to be strong; Drops of water and stones tell us to persist; The sea tells us to be broad-minded ... Nature is a wordless book, which contains too many secrets. Let's go into nature together, listen to the sounds of nature, appreciate the scenery of nature and explore the secrets of nature!
Before 13, people rode bicycles and rode a little way until they didn't feel tired, but the long way was very hard.
How can I drive a long distance without a little effort? With the passage of time, humans saw horses running on all fours, and later invented cars. Cars can travel a long distance without any effort, but they can't get into the water. People say, "Submarine! It has already come out. " It can dive, but it can't drive on the road. People saw birds flying in the sky, and later invented the plane. After the plane flew for a long time, the wing would be seriously broken. People thought and thought, looked and looked, but nothing could replace the wing of the plane. When people wanted to give up, a dragonfly flew and was seen. After carefully observing the wings of the dragonfly, it was found that there were some weight-bearing objects at the end of the wing, and people also added weight-bearing objects to the wing of the plane. Sure enough, The wing of the plane didn't break at all, but when checking in, someone got into the plane without buying a ticket, and people got inspiration from the frog. With the invention of electronic frog eyes, people can check in automatically, so no one will get into the plane without buying a ticket.
Nature is really a good teacher for human beings! They give us a lot of inspiration and make our life much more convenient. I believe there will be many animals and plants that will bring us inspiration in the future!
The revelation composition of nature in grade four 14 Nature is wonderful, which brings us a lot of enlightenment. Like ants carrying food.
In sunny spring, I took bread crumbs from home early in the morning and threw them on the ground to lure small ants. After a while, I saw a few small ants coming out of their home and seemed to smell a fragrance. So they walked away with bread crumbs without hesitation. After a while, a little ant ran out from under the crumbs and quickly got into the nest. Then, a strong ant climbed out with the little ant. It turned out that the little ant was looking for help!
With the help of the big ants, the little ants are much faster. I guess they also shout, "One, two!" One, two One, two! " Full of energy! Ten minutes passed, and the little ants finally ushered in the hardest stage-climbing the small soil slope. For ants, this slope is very steep, and it is necessary to be very United if you want to climb it.
Above the small slope is the ant nest. I saw the little ants trying to lift up step by step. I watched the ants working so hard, and my heart melted in an instant: I had to help them. So I gently pushed the ants and bread crumbs with branches, so that they quickly reached the ant nest.
After this observation, I think that although ants are small insects, this small insect has given me important enlightenment: unity is strength, and persistence is victory! Young pioneers in the new era need this spirit!
The revelation of nature in the fourth grade 15 Everything in nature has given us a lot of inspiration, and it is so charming. As long as we pay attention to observation and are good at discovering, we will certainly get a lot of enlightenment.
People have long had the ideal of flying in the air. After carefully studying the shape of birds, they invented the plane and realized their dream of flying. People got inspiration from colorful butterflies and designed camouflage clothes to confuse each other. People invented the shape of the radio and television tower from thick to thin spruce trees, making it very strong. When Luban climbed the mountain, his finger was cut by a serrated grass, which inspired him to invent a saw, which greatly improved the speed of cutting trees and greatly reduced the labor intensity of craftsmen. These are the results of people's careful observation and good discovery.
Do you know how fireflies glow? When fireflies start to move, they breathe faster and breathe in a lot of oxygen. Under their bellies, fireflies emit bright blue light. Because of the different breathing rhythm of fireflies, it forms a "flashing signal" that is bright and dark. Although this kind of light is bright but has no heat, it is a very ideal light. According to the luminous characteristics of fireflies, I want to cultivate a luminous plant. This plant absorbs sunlight during the day and converts it into energy at night, turning it into a cold light and releasing it. Plant them by the roadside, and we can enjoy them during the day, which makes us feel comfortable. At night, they can light the road instead of street lamps. This can not only save energy, but also purify the air and beautify the environment. It's killing three birds with one stone!
The seemingly ordinary nature actually has endless mysteries waiting for us to explore. Let's work together to create a better tomorrow for our motherland!