Reflections on "Space Roaming"

After reading A Wandering Space 1 Since ancient times, human beings have been full of reverie about the boundless universe. Various world views have gone through a long time from naivety to maturity, from myth to science. In ancient times, people lacked scientific knowledge of the universe and didn't know that the earth was a sphere. They used to call the surface where they lived the earth and the space relative to the surface the sky. Some people explain the cause of the formation of heaven and earth like this: when chaos first opens, light gas rises to heaven and turbid gas falls to the ground. And think that the sky is round like a hat and the place is like a chessboard, which is the famous old saying that the sky is round and the place is round. Li Bai, a great poet in the Tang Dynasty, said: "Heaven and earth are the inverse of everything; Time flies, a hundred generations of passers-by. " Li Bai compared heaven and earth to a hostel where everything lives, and time to a passer-by. He introduced the concept of time and skillfully combined time and space into a complete concept, which is what we call the universe today. Space is space, and the universe is time. The vast universe aroused the infinite reverie of the ancients, thus producing many beautiful myths and legends. For example, Pangu created the world, Nu Wa refined stones to fill the sky, and the Milky Way cut off the cowherd and the weaver girl. These beautiful and moving legends reflect the ancient people's understanding of the universe.

For thousands of years, people have been exploring and finally solved the so-called "heaven and earth" mystery, and the universe is being gradually recognized by people. The universe is boundless. Among them, the Milky Way is just one of many galaxies in the universe, and the Milky Way itself is composed of about 654.38+000 billion solar systems. Its shape is like a discus thrown by an athlete, with a thick center and a thin periphery, showing that stars are densely distributed in the center of the Milky Way. The Milky Way we see on the earth is like the projection of a discus.

After reading the model essay 2 of a roaming space, everything related to matter is the existence of time and space. Matter can neither be created nor destroyed. But a pure and rich material world can create intelligence. Man, a creature derived from the change of the universe, has become the carrier of thinking. How terrible and pale a world without thought and ideology will be. Besides, what's the point of this world? The movement of the universe created the earth, and sufficient sunshine gave all the nutrients at the beginning of life. Creatures crawled from the ocean to the land, and in the process of continuous adaptive evolution, they finally chose forest apes near the equator. They are the ancestors of mankind. Forced to survive, they began to walk on their hind legs, and their forelimbs picked up branches or stones to resist the enemy. The separate use of limbs, long-term evolution, gradually became hands and feet. So, in this way, there appeared a real human being-the only higher creature with thinking ability known at present. Human beings out of the universe and life out of the universe are all empty talk.

Nothing and process in the world can exist in isolation, they are all related to other things and processes around them. Everything, every element and every link in every process cannot exist in isolation, and they are all related to other elements and links; The whole world is an interconnected and unified whole and process, and all things and processes are a part, link or stage of the cosmic connection network; Isolated things and processes that have nothing to do with other things and processes do not exist.

Since human beings can exist in the universe and on the earth, we should study the development of the universe and pay attention to its origin and trend. In this way, combined with the use of our intelligent high-tech products, we can subjectively reverse the changes in the universe and better protect the earth and the universe on which we human beings depend. I believe that with the continuous progress of science, our understanding of the universe is deepening and further expanding. Such an eternal universe is being held up by us bit by bit. Let's explore with this vision as always.

After reading "Wandering in Space", since ancient times, human beings have been full of reverie about the vast universe. The book "Wandering in Space" shows the process of various world views from naive to mature, from myth to science.

Pangu created the world, Nu Wa refined the stone to fill the sky, and the Milky Way cut off the cowherd and the weaver girl. These beautiful legends reflect the mystery of the universe in people's hearts and the ancient people's understanding of the universe. Space is infinite space, and the universe is infinite time. The vast universe aroused the infinite reverie of the ancients, thus producing many beautiful myths and legends. For thousands of years, people have been exploring and finally solved the so-called "heaven and earth" mystery, and the universe is being gradually recognized by people.

The universe is boundless. Among them, the Milky Way is just one of many galaxies in the universe. The night sky in summer is full of stars. The Milky Way, composed of hundreds of billions of solar systems, is so vast to us, but it is a "drop in the ocean" in the vast universe! So, what about people? In this vast and deep universe, what is this self-righteous greatest species? However, this tiny human being has great power. With their wisdom and ability, they can make many large super telescopes and see galaxies millions of light years away from us. The universe is infinite, and so is man's cognitive ability.

Li Bai, a great poet in the Tang Dynasty, said: "Heaven and earth are the reverse of things; Time flies, a hundred generations of passers-by. " Li Bai compared the earth to a hostel where everything lives and time to a passer-by. He introduced the concept of time and combined time and space to form a complete concept, which is what we call the universe today. Putting an individual in the universe really feels like "flying in the sky and underground, a drop in the ocean". Compared with it, human life is so short!

Close the book, close your eyes, as if you were in a vast universe. I can't help thinking about the universe. The life of a nobody is an accident in itself; The death of a small person will eventually become inevitable. How to measure the distance between life and death? What is the meaning of life and death? The universe gave me the answer. Face life and death calmly and make full use of the time between life and death. The length of life can be compared with the universe. The universe is immortal, and the value of the spirit disappears with it.

The universe is an eternal poem with a mysterious infinity as its theme. Confucius once looked at the river flowing eastward and felt that "the deceased is like a husband, not giving up day and night." The eternity and infinity of the universe and nature reflect the shortness and limitation of life, and inspire people to pursue a valuable and meaningful life persistently. Chen Ziang, a poet in the early Tang Dynasty, boarded Youzhou Taiwan, overlooking the vast universe. Thinking about the past and the present, he couldn't help feeling sad: "Where were those lost times before me?" Behind me, where are the future generations? . I think of heaven and earth, there is no limit, there is no end, I am alone, tears fall! " This poem praises the infinity of heaven and earth, feels the shortness of life and the sadness and generosity of the universal spirit.

"Looking at qi zhou from afar, nine cigarettes and a glass of sea water float". Li He, a poet in the Tang Dynasty, tried his best to make himself stand in the sky, pitching the world in the present and pitching it in the present. Someone once calculated that the moon passed us in the 9th power of 10, but standing outside the 9th power of 10/0, the earth has become a small particle in the dark. The universe is infinite, and the earth is just insignificant dust, so where are you? If everything is controlled by God, what is the difference between people and ants in God's eyes? They are all the same size! Suddenly I don't know what happened today and what happened in my daily life, what a humble and trivial thing.

The book A Space Odyssey shows the real universe. And I, a speck in the universe, only fear it!

I want to tell you an amazing thing I saw in this book. The longest river in the world is the Nile, which is 6670 kilometers long. On the west bank of the Nile, there are three magnificent pyramids, the highest of which is pyramid of khufu. It consists of more than 2.3 million stones, and what is even more amazing is that each stone weighs 2.5 tons. Up to now, people have not been able to accurately guide how the ancient people built these pyramids. Is the earth mysterious? Next, I want to share with you some knowledge about volcanoes, which I also read in books. The four most famous active volcanoes in history are Vesuvius, Tambora, Rakato and San hellens. The two largest active volcanoes in the world are Changnaroa Volcano and Kilauea Volcano in hawaii volcanoes national park. They are like two giant towers in the Pacific Ocean. The most beautiful volcano in the world is Mount Fuji in Japan. There are many volcanoes in the book, so I won't mention them one by one. This shows that the earth is so colorful!

This book is not only rich in knowledge, but also contains many jokes, riddles and famous sayings, which makes me learn a lot while relaxing. Whenever I am impatient with learning, as long as I think of the book "There is a way to learn from the mountains, and there is no limit to learning from the sea", I seem to see the tireless efforts of the ancients. At this moment, I seem to have the power to continue learning. "Advice in the most unpleasant time is good for action, and medicine in the most painful time is good for illness." Whenever my parents criticize me, I always think of this sentence. I know they all care about me for my own good, so I accept it with an open mind. Usually I have troubles. As long as I read the jokes and famous sayings in the book, my mood will be much better. This book is really my mentor!

After reading this book, I learned not only many mysteries of the universe, but also many truths. There are many stars in the universe that are much bigger and brighter than the sun, but I can't see them, not because they are not big enough or bright enough, but because I am nearsighted. I made up my mind to read more interesting popular science books, broaden my horizons and increase my knowledge. "Nothing is difficult to a willing mind", I will study hard, and one day I will plug in the wings of knowledge and soar in space!