With the continuous advancement of human technology, humans have now gained a certain understanding of the universe. Modern science believes that our universe was born 13.8 billion years ago. 13.8 billion years ago, an singularity exploded. The singularity is a point with infinite mass, infinite energy, infinite density, infinite heat, and infinite volume. After this point exploded, the universe quickly expanded to the surroundings. After 13.8 billion years, the universe expanded to what we see now. After the explosion of the universe, the celestial bodies in the universe began to form. The stars, planets, comets, asteroids, neutron stars, etc. we see were all produced after the Big Bang .
Our earth is a planet in the solar system. In the solar system, there are eight planets, namely Mercury, Venus, Earth, Mars , Jupiter , Saturn , Uranus and Neptune . There is also an Neptune outside Neptune. Wang Xing , Pluto was once a planet, but later scientists believed that Pluto's size and mass were too small, so they kicked Pluto out of the ranks of planets. Now there are only eight planets in the solar system, , . Among the eight planets in the solar system, only the planet Earth has given birth to life. The emergence of life has added a lot of color to the planet Earth, especially after the appearance of humans, it has unraveled many mysteries on Earth.
Modern science believes that humans were born more than 2 million years ago. More than 2 million years ago, ape creatures lived on the earth. At that time, many other ferocious creatures lived on the earth. In order to develop for a long time, ape creatures chose to live in groups. Group life not only promotes the opportunity for mutual development between each other, but also can effectively resist foreign invaders. Scientists have found through research that frequent communication can make the brain develop faster and faster. Because ape creatures survive together for a long time, the ape brain became smarter and smarter, and eventually successfully evolved into humans. Humans began to constantly explore the mysteries of the universe since their birth.
According to scientists' research, we can know that the celestial bodies in the universe are moving regularly. For example, the moon rotates around the earth, the earth rotates around the sun, and the sun rotates around the Milky Way . It can be said that the entire universe is moving regularly. According to the law of universal gravitation of Newton , we can know that any mass object has gravity. The greater the mass of matter, the greater its gravity. In the solar system, the maximum mass of the sun, so its gravity is also the greatest. The powerful gravity can attract all the eight planets, so the eight planets can steadily orbit around the sun, and there is a supermassive black hole in the center of the Milky Way.
The black hole is also very large, so the entire Milky Way is rotating around the center. However, Einstein does not think so. Einstein believes that the reason why celestial bodies with small mass rotate around celestial bodies with large mass is because celestial bodies with large mass can bending the film of the universe, so celestial bodies with small mass rotate around celestial bodies with large mass. At present, scientists are also actively studying the laws of celestial bodies' movements. In addition, some scientists believe that there should be a mysterious matter in the universe, which is called dark matter . Scientists believe that the proportion of dark matter in the universe is very large. The ordinary matter (stars, planets, comets, asteroids, etc.) we can see accounts for 5% of the total mass of the universe, and the invisible matter (dark matter) accounts for 95% of the total mass of the universe.
In the 1970s, astronomer Vera Rubin was the first to take dark matter measurements that provided indirect evidence of the existence of dark matter, while she linked the measured data to dark matter as the reason for its existence. She observed and tracked the speed of stars running in spiral galaxy .For example, in the Milky Way, all matter is rotating around the center of the Milky Way. Logically speaking, the closer the celestial bodies to the central area of the Milky Way, the greater the gravitational influence. However, the celestial bodies away from the edge of the Milky Way are affected by the gravitational influence, and the centrifugal force generated is the largest.
If you look at this, then the area on the edge of the Milky Way should be thrown out by centrifugal force, but the celestial bodies on the edge of the Milky Way were not thrown out by centrifugal force, but instead rotated steadily around the Milky Way. This may be that dark matter is at work. Dark matter can not only control the rotation of celestial bodies, but can also promote the expansion of the universe. In the early 20th century, American physicist Edwen. Hubble discovered when observing galaxies that the spectra in the galaxy had redshift phenomenon . This phenomenon shows that these galaxies are far away from us. After seeing this phenomenon, Edwen Hubble put forward a bold guess, that is, our universe is still expanding. After the theory of
was proposed, many scientists could not believe it, so many scientists observed galaxies and finally found that Edwin Hubble's theory was correct. This theory not only gave humans a new understanding of the universe, but also made scientists feel very desperate. After all, after humans walked out of the earth, they have been exploring the edge of the universe. If the universe continues to expand, then we may never find the edge of the universe. Seeing this, I believe many friends will be amazed that the universe is really amazing. Einstein, a former famous physicist, began to study theology in his later years, and he also wrote a memoir. The general content of the memoir is that God created our universe, and God lives in our universe, but is Einstein's God the same as the God we think of? We don’t know at the moment. Perhaps the God in the eyes of scientists is different from the God we think of. Professor Yang Zhenning, once asked in an interview with reporters: Do you believe there is a God in this world? Yang Zhenning replied: If the so-called God is in the shape of a human being, then I think there is no one. If you ask me if there is a Creator, then I think there is one, because our world does not exist by chance. Although until now, scientists still don’t know what this Creator is? But scientists believe that our world does not appear by chance.
This shows that our world may have been designed in advance, but we don’t know who the designer is now. Perhaps the universe is not as simple as we imagined. The famous quantum mechanics tells us that whether the world exists is actually related to the observer. The more famous theory is Schrödinger’s cat . I believe that many people who love science know about Schrödinger’s cat. Schrödinger’s cat puts a cat in a sealed box and then puts poison gas into the box. After a while we will judge whether the cat is still alive. Schrödinger believes that human observation determines the life and death of a cat. If we open the box, then we can accurately judge whether the cat is still alive. If we don’t open the box, then there are two possibilities for cats, either to live or to die. But the moment humans opened the box, this conclusion was doomed.
So quantum mechanics believes that observers are the most important. Perhaps our world does not exist real, but a virtual world. Many people may not believe it, but think about it carefully. When we play games, can the characters in the game know that they are in the virtual world? And we are the same. Perhaps only when we walk out of the universe can we discover the ultimate mystery of the universe. However, if we want to break the rules and walk out of the universe, this is impossible to do, just like people in the game cannot get out of the game. Although these are scientists' conjectures, there is also some truth. With the advancement of human technology in the future, we may be able to unlock this mystery. Do you have anything to say about this?
