Essay The Future of the Universe After Reading, The Universe After Reading

In "The Future of the Universe", Hawking ** has two destinies for the future of the universe: one is to continue to expand, and the other is to shrink so that it collapses into a point. Whether it expands or contracts depends on the average density of the universe.

If it were smaller than the threshold, the universe would expand forever. But if it is greater than the threshold, the universe will collapse, and time itself will all end in the Great Squeeze. The most important "theoretical support" for the hypothesis of "the future of the universe with two destinies" is Hawking's theory that "black holes are not black".

"I discovered a few years ago that black holes are not as black as they are portrayed," Hawking said. According to the uncertainty principle of quantum mechanics, it is impossible for a particle to have a well-defined position and a well-defined velocity at the same time.

The more precisely a particle's position is defined, the less precise its velocity can only be, and vice versa. If there is a particle in a black hole, its position is well defined in the black hole, which means that its velocity cannot be precisely defined. So the speed of the particle can exceed the speed of light, which allows it to escape from the black hole, and the particles and radiation leak out of the black hole so slowly.

Black holes are depleted in this way over time until they evaporate completely. Before Hawking unveiled his theory, the scientific community believed that black holes were bottomless wells that devoured matter, making it impossible for anything, not even light, to escape. Stephen Hawking's theory that "black holes are not black" is being accepted by more and more people.

Hawking's "radiation" was named Hawking radiation.

Universe. The size is immeasurable, and the shape is immeasurable.

Being in the universe, I don't know my true face.

After reading "The Universe", you will truly realize the insignificance of human beings, who are nothing more than ants compared to the universe. But the incomparable self-confidence of human beings is often the destruction of the ultimate ** of human beings, so human beings will not be destroyed by all ignorant things, but may be exterminated by themselves.

The book even goes so far as to explain the origin of life, telling that the reason for the arrival of Homo sapiens was the result of human interaction and mutual exchange. Because human extinction oranges are social animals, it will lead to the development of civilization, evolution, and the current us.

As the years passed, generations of people learned the knowledge of Natuan's ancestors. The clearer you understand the position of the sun, moon, and stars, the better you will be able to grasp the timing of hunting, sowing, harvesting, and tribal gatherings. As the accuracy of measurement improved, it was inevitable that people would keep records, so the development of Tianzhou Yunwen literature promoted the development of measurement technology, mathematics, and writing.

What is the universe? How big is space? Recently I read a book called "The Universe. The scientific encyclopedia of Space, it answered everything for me.

When I didn't read this book, I always had a question about the universe: how did the universe and galaxies come to be? In scientific terms, the universe has been expanding since it became large, producing substances such as neutrons, atoms, and protons, thus giving rise to galaxies and all things.

It turned out to be such a tightly linked "formation chain"! It dawned on me.

The great physicists Stephen Hawking and Albert Einstein were both very interested in black holes. Out of curiosity, I also took a look, and hey, I was really intrigued. The volume of this celestial body tends to zero, and the density is infinite.

It will suck objects in with a super-strong force of attraction, making it almost impossible to release them until it enters the white hole of the opposite celestial body. At this time, the object is already in another cosmic space.

After reading this book, I developed a strong interest in science. At the same time, I am deeply grateful to those scholars who are committed to scientific research, science represents all things, that is to say, there is science in everything. As long as everyone believes in science and approaches science, how beautiful the world will be!

Universe. Space pulled my mind from Earth to space. At this moment, the universe is still expanding, and the eight planets are still revolving around the sun. Thinking of this, I can't help but sigh with emotion, isn't science all around us?

Now, people are becoming more and more active in exploring space. The goal of our human race is to build a human settlement base in space to prevent the earth from being overcrowded. I firmly believe that in a hundred years, these are no longer dreams!

Science is our teacher. Science is everything, everything is science! We love science!

Gesang was on a wild outing and was fascinated by the colorful wild fruits. After listening to the teacher's talk about the fruits that are abundant in various parts of the motherland, I had a dream and drew a picture. A young man dressed in Tibetan clothes, holding two big, red apples, stood in a fruit-filled orchard.

The painting was named "The Future". Gesang used this painting to spur himself on, and when he grew up, he became a gardener, turning his ideals into reality with his actions.

After the teacher finished speaking, the students fell into deep thought. I also wondered, what kind of future should I draw with my actions on the answer sheet of life? The future is exciting.

Our present is the future of our elders: comfortable, comfortable. So what kind of present should we give to our younger generations?

The past, present, and future involve the first three generations, how to draw it so that it will not cause mistakes and affect future generations? Thinking about this, I suddenly felt that the brush had become extremely heavy, as if I was playing chess, and a wrong move would affect the final victory.

Gesang in the text did not hesitate to build his future in his hometown, what about me? I don't seem to have thought about my future, the present of my descendants, and I seem to be content with the present that my elders have given me.

How should I draw in the future? I want to use my actions to draw happy faces in my life, so that those who have lost happiness around me can regain their happiness. I thought about my future, what about you? Let's work together to paint a picture of life that satisfies ourselves and future generations!

A while ago, I finished reading fifteen letters written by Yin Jianling to girls - "To the Future You".

After reading this book, I was deeply moved. Ming banquet contains.

In the preface, the author gives us a song, and one of the lines is: Let it be, we can't foresee the future. "Future" is indeed a very mysterious word in my opinion, the future is the most anticipated, the future is impossible to find, only waiting.

And in the lyrics, the expectations and longings for the future in the girl's heart are also revealed.

When I saw Chapter 10, "Take Your Own Destiny into Charge", I was very impressed with it. Yes, fate is all in your own hands, failure or success, only you can change him, not others help you, nor God helps you.

Are people equal to each other? Maybe it's equal, maybe it's unequal, there is no very accurate answer, but you may never think about changing your destiny yourself.

The author mentions a story in it. A girl named Hai Hui, she is very beautiful, but she doesn't like it, because she looks like her mother who abandoned her home, she didn't pay attention to her studies because of all kinds of things in the family, her homework was always very poor, and she didn't get admitted to college. When she had a daughter of her own, she vowed to give her a happy path.

When you want to try to be happy, you will be amazed to find that happiness is right next to you.

In every minute of life, it is very meaningful, or the old poem "If the young man does not work hard, the old man is sad." "It may seem like nothing new, but I can really learn a lot from it.

I believe that fate can be changed. As the saying goes, "How can you see a rainbow without experiencing wind and rain?" "That's the way fate is, you won't succeed without going through hard work and laughter. No one can succeed casually, take control of their own destiny and give it their all.

This mysterious and distant place of the universe fills me with curiosity. What's in the universe? What is the solar and lunar eclipse?

How did the universe come into being? How was the Earth formed? Why is there day and night?

And why are there meteors and so on. To answer these curiosities, my mother bought me the book "Universe". From this, I understood that the universe was created in a great ** 15 billion years ago and gradually formed.

The large ** emitted matter drifts through space to form galaxies. Our sun is one of these countless stars. It takes a year for the earth to revolve around the sun, so the sun is much larger than the earth, because it is so far away from the earth, we see the sun is only the size of a sphere.

In addition to the Sun, there are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. All stars and planets are in motion. When the Moon is just halfway between the Sun and the Earth, the Moon blocks the main part of the Earth, which is called a solar eclipse.

When the Earth is halfway between the Sun and the Moon, the Earth blocks the Moon, which is a lunar eclipse. Since the earth always rotates in the same direction, exactly once every 24 hours, it is daytime when the place where we live turns to the side facing the sun. When you turn your back to the sun, it's night.

I also know that a comet with a long tail and the occasional streak across the sky. The meteors or meteor showers we usually see are the beautiful moments when the frozen material and dust particles on the comet come to the earth through the atmosphere. There is so much knowledge in the book that I can't finish it.

There are still many secrets of the universe waiting to be explored and discovered. Suddenly feeling the greatness and prosperity of our motherland, from Shenzhou 1 to Shenzhou 5, from Shenzhou 7 to Tiangong 1, people are gradually exploring the mysteries of the universe and making great contributions to mankind. So far, the earth is the only planet that we humans can live on, and what we need to do now is to protect our earth, start small, reduce pollution, and prolong the life of the earth.