I once heard such a story: A famous scientist once gave a lecture on astronomy. He described how the sun revolves around the center of a huge group of stars we call galaxies. At the end of the speech, a short old woman stood up and said, "What you are talking about is nonsense. The world is actually a flat plate on the back of a big turtle." The scientist replied with a smile "Then what is this turtle standing on?" "You are very smart, young man," said the old woman, "but this is a group of turtles that have been carrying a tortoise!". The story is naturally ridiculous, but it's true that we know too little about the universe.

How did the universe come to be? When will it disappear? Why is it so mysterious? These questions can only be answered by exploration. Among the many seekers of the universe tree, there is a man named Stephen Hawking who has achieved many fruits , "A Brief History of Time" is the juice of these fruits.

From Aristotle's geocentric to Copernicus's heliocentric theory, it is enough to explain the synthesis of all time and space - the mystery of the universe, but how did the universe come into being? The universe was created by a singularity 15 billion years ago Produced by the explosion and expansion, American astronomer Hubble proposed Hubble's law that the redshift of galaxies is proportional to the distance between galaxies, and deduced the theory of cosmic expansion that galaxies are moving away from each other, indicating that the expansion of the universe has been going on.

None of us know when the universe, a complex of time and space, will disappear, but what is certain is that the universe is mysterious and inviolable (at least now, one cannot go to the universe alone), the universe is full of unknowns, insects Holes, black holes, galaxies, and everything in parallel universes seem so mysterious, but they are all excavated by the spirit of human exploration. To put it bluntly, the universe is like a big bag. From ancient times to the present, many people have stretched out their hands in search. Some people have obtained the reward in the bag, and some people have not returned. Although I don’t know when the bag came, it is also I don't know when it will disappear, but from the beginning of the earth, to the solar system, to the Milky Way, and finally to the entire universe, this is the result of human's search for the unknown. Thinking of this, I can't help but think of "A Brief History of Time". The author of Mr. Hawking, a sky explorer locked in a wheelchair. And the condensation of his thoughts - the description of light and time and space in "A Brief History of Time", let me know for the first time that the current starry sky is what it looked like a long time ago, even if you smile at a star at night, it is about It will take a long time for that star to be able to see your smile. This is because light takes time to travel. It takes a long time from the light source to the earth. If the sun does not shine at this time, then the earth at this moment will wait until 8 We'll know in minutes. This is also enough to explain the vastness of the universe. All of this also stems from human's pursuit of the unknown!

The human spirit of exploration is the most important. It is well known that Hawking only has three fingers to move, but his spirit of exploration helped him to go to the universe, and prompted him to successfully publish the world famous book "A Brief History of Time". As Darwin said, "I To be successful in science, the most important thing is to love science and persist in long-term exploration." Exploration will make you successful too; so please don't forget the most important thing for people - exploration!

I once heard such a story: A famous scientist once gave a lecture on astronomy. He described how the sun revolves around the center of a huge group of stars we call galaxies. At the end of the speech, a short old woman stood up and said, "What you are talking about is nonsense. The world is actually a flat plate on the back of a big turtle." The scientist replied with a smile "Then what is this turtle standing on?" "You are very smart, young man," said the old woman, "but this is a group of turtles that have been carrying a tortoise!". The story is naturally ridiculous, but it's true that we know too little about the universe.

How did the universe come to be? When will it disappear? Why is it so mysterious? These questions can only be answered by exploration. Among the many seekers of the universe tree, there is a man named Stephen Hawking who has achieved many fruits , "A Brief History of Time" is the juice of these fruits.

From Aristotle's geocentric to Copernicus's heliocentric theory, it is enough to explain the synthesis of all time and space - the mystery of the universe, but how did the universe come into being? The universe was created by a singularity 15 billion years ago Produced by the explosion and expansion, American astronomer Hubble proposed Hubble's law that the redshift of galaxies is proportional to the distance between galaxies, and deduced the theory of cosmic expansion that galaxies are moving away from each other, indicating that the expansion of the universe has been going on.

None of us know when the universe, a complex of time and space, will disappear, but what is certain is that the universe is mysterious and inviolable (at least now, one cannot go to the universe alone), the universe is full of unknowns, insects Holes, black holes, galaxies, and everything in parallel universes seem so mysterious, but they are all excavated by the spirit of human exploration. To put it bluntly, the universe is like a big bag. From ancient times to the present, many people have stretched out their hands in search. Some people have obtained the reward in the bag, and some people have not returned. Although I don’t know when the bag came, it is also I don't know when it will disappear, but from the beginning of the earth, to the solar system, to the Milky Way, and finally to the entire universe, this is the result of human's search for the unknown. Thinking of this, I can't help but think of "A Brief History of Time". The author of Mr. Hawking, a sky explorer locked in a wheelchair. And the condensation of his thoughts - the description of light and time and space in "A Brief History of Time", let me know for the first time that the current starry sky is what it looked like a long time ago, even if you smile at a star at night, it is about It will take a long time for that star to be able to see your smile. This is because light takes time to travel. It takes a long time from the light source to the earth. If the sun does not shine at this time, then the earth at this moment will wait until 8 We'll know in minutes. This is also enough to explain the vastness of the universe. All of this also stems from human's pursuit of the unknown!

The human spirit of exploration is the most important. It is well known that Hawking only has three fingers to move, but his spirit of exploration helped him to go to the universe, and prompted him to successfully publish the world famous book "A Brief History of Time". As Darwin said, "I To be successful in science, the most important thing is to love science and persist in long-term exploration." Exploration will make you successful too; so please don't forget the most important thing for people - exploration!