If you think black holes are useless, you are all wet. Through research, scientists found that there is a super black hole in the center of the Milky Way, with a mass of about 4 million times that of the sun and a diameter of about 20 million kilometers. It is a super monster. Scientists believe that the existence of black holes is closely related to the evolution of galaxies. Results By observing several other galaxies, it was found that there was a supermassive black hole in the center of each galaxy. This further illustrates the importance of black holes.
The publication of black hole photos means that mankind has taken a big step on the road of space exploration. First of all, black holes originated from science fiction. Later, Einstein realized that when the density and mass of an object reach a certain level, it will compress itself into a singularity, and when its gravity is so strong that even light cannot escape, the celestial body will be invisible. Although the HTC team did not shoot towards the center of the Milky Way, we also found such a black hole in the center of M87.
The release of this photo fully proves the structure of a black hole, which is composed of accretion disks, horizons and singularities. When matter enters the roche limit region of a black hole, it will be torn to pieces. Because of the different masses, matter does not enter the black hole immediately, but surrounds the black hole bit by bit.
Then matter will enter the horizon area. Outside the horizon area, there are thermal radiation and beautiful cosmic phantoms. Miraculously, if you are in the horizon, you can see how the light is sucked in by the black hole. When you and light gradually enter the black hole, it is a mysterious multidimensional space and the end of everything. That's the singularity of time and space. From the characteristics of the singularity, we know that when any substance reaches the singularity, it is basically impossible to survive. After all, nothing can withstand such intense high temperature and pressure.
To sum up, although we didn't take the first photo of the black hole, we can determine the authenticity of the black hole and the ultimate reason why it is black. By observing the thermal radiation, we know the real structure of a black hole. By calculating the schwarzschild radius and Roche limits, it is really possible for human beings to travel around black holes and complete time travel in the future. The deeper meaning is the greatness of mankind. Although we live in a corner of the universe, we have been able to solve the ultimate mystery of the universe, that is, human beings!
The universe is vast and there are countless celestial bodies. In addition to our common stars and planets, there are some special mysterious celestial bodies, such as neutron stars, pulsars and black holes. What is the most mysterious celestial body in the universe? I believe many people will answer: black holes.
Yes, the most mysterious celestial body in the universe is a black hole. It is a bottomless abyss of time and space, and even light can't escape. For a long time, black holes are only indirect evidence of general relativity, Einstein equation, simulated computer images, gravitational waves and other predictions, or imaginary things in science fiction.
Although scientists can't directly observe the black hole, because it is too overbearing, when it devours stars and other substances, it will burst into dazzling light, and strong radiation waves will spread far and far, and finally these lights will be detected by radio telescopes. Through these abnormal phenomena, scientists know the existence of black holes.
Although scientists know the existence of black holes, it is very difficult to observe them and take pictures of them. However, when the global scientific community combines eight radio telescopes (arrays) distributed around the world into an "earth-level" virtual telescope array, aiming at the same distant starry sky at the same time and in the same direction, even a black hole, a gravitational trap hidden in the depths of the universe, will "shine brilliantly".
From Hawaii to Chile, from Iberian Peninsula to Antarctica ... More than 200 scientists from more than 30 research institutes around the world have devoted many years to recording the dazzling light emitted by accretion disks and jets around black holes, thus making supermassive black holes have nowhere to hide and showing their true colors. It is the efforts of global synchronization that have enabled mankind to take the first black hole photo in history.
At 9 o'clock last night, scientists released the first photo of human black hole to the world. For the first time, people really saw what a black hole looked like. The real content of black holes no longer exists only in people's fantasies. So, what practical impact will the publication of the first batch of black hole photos have on modern science and technology?
Perhaps many people see the first photo of human beings and only see the beautiful cosmic sky, but for the scientific community and the whole human civilization, its significance is extraordinary. So what is the specific practical guiding significance?
1. Verify Einstein's theory of relativity. I believe many people know that Einstein is a great scientist in modern human history. His research on the space-time theory of the universe can be said to be epoch-making, especially the theory of relativity. Mankind has entered a new stage. Einstein's general theory of relativity has been predicted in order to explore and study black holes.
The prediction of general relativity for black holes is that the circular "silhouette" is surrounded by bright photon circles. Is this prediction correct? In order to test its correctness, we must get a real black hole photo. This time, through global cooperation, we finally got a real black hole photo.
Comparing the black hole photos predicted by general relativity with the real black hole photos taken by the super telescope, it is found that they are completely consistent. People once again saw the greatness of Einstein and verified the greatness and correctness of general relativity. With this proof, it is of great significance to human future space exploration.
For example, now we know that general relativity is correct. In the future, with the rapid development of artificial intelligence, when searching and exploring celestial bodies in the universe, we can use the prediction function of general relativity to input formulas into supercomputers to predict unknown celestial bodies that may exist in a certain position in the universe. After determining the position, you can use observation instruments (such as astronomical telescopes) to determine whether there are predicted celestial bodies in this position. This is much better than looking for celestial bodies by luck in the vast universe.
Secondly, break the contradiction between general relativity and quantum mechanics. I believe many science lovers know that general relativity and quantum mechanics are the two pillars of modern physics. General relativity is applicable to objects with large mass and gravity. , such as black holes; Quantum mechanics controls the strange world of subatomic particles. However, these two successful theories in their respective fields are contradictory.
Scientists didn't know whether the theory of relativity was correct at the boundary of black holes before, so they couldn't choose something. The appearance of this first black photo verifies the correctness of general relativity in predicting the boundary of black holes. This will point out a new direction for the development of physics and have a good guiding significance for the whole physics.
Third, measure the correctness of the influence of black holes on time and space. 19 15 years, general relativity became one of the revolutionary theories put forward by Einstein. In this theory, Einstein proposed that matter will distort or bend the geometric structure of space-time, and human beings will feel this distortion of space-time in the form of gravity. Black hole is one of the earliest predictions of Einstein's theory.
According to Einstein's theory of relativity, the horizon of a black hole has spatial distortion and time effect. Space-time theory has always been a mysterious existence. It is a combination of time and space. In some scientific conjectures, if you master time and space, you can master the mystery of space and time of the space shuttle. You can go back to the past and go to the future.
But space-time is the most difficult problem to solve and study in the scientific community, especially the concept of time is unknown. According to scientists' exploration and analysis of black holes, it can be considered that black holes also have rotation, and the rotation speed is very fast, which may even reach the sub-light speed or even the light speed. If the black hole's line of sight is distorted in time and space, it will be extraordinary for human beings.
Some scientists put forward the idea of using black hole vision to realize the future space shuttle. The idea is to let the spacecraft enter the horizon of the black hole, and then the ultra-high-speed rotation of the black hole will make the spacecraft fly at sub-light or light speed. As we all know, the faster the object, the slower the time. When the speed of an object is infinitely close to the speed of light, the time of the object is infinitely close to rest.
In this case, the spacecraft orbiting the black hole may have been running on the earth for 100 years, but it may only take a few minutes for astronauts. When the spaceship stopped flying out of the sight of the black hole, it came to the earth. At this time, the earth has passed 100 years, realizing the dream of the future.
The above three points are only part of the actual impact on real technology after the first black hole was announced. In fact, its influence goes far beyond this, otherwise scientists would not be so excited. Pictures, but in the eyes of scientists, this may be a new chapter in the exploration of space by human civilization.
There are no black holes!
1. The black hole is a wide-phase solution, which is wrong.
Second, quality is based on matter, materialization is invisible, where can there be quality?
Third, the so-called singularity in the center of a black hole is a castle in the air without any laws!
The first photo of a human black hole has been released. What do you want to say when you see the real content of a black hole?
I want to say that the "real content" of this so-called black hole is not necessarily the real image of the universe.
Because black holes are just a scientific conjecture.
How does a photo prove that a conjecture is scientific?
So, is the sufficient reason law of logic still valid?
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I wonder if we humans, including the universe, are the nuclei of an advanced organism.
First of all, we have never seen a black hole. This photo was collected through a radio telescope ... it doesn't matter what happens when the thunder comes. It is an imaginary picture after calculation and synthesis. It's like when you buy a house and see trees in the community, the birds are singing and the flowers are fragrant, and the fish is clear. You may not know what it will be like when you actually check in. So don't worry too much.
55 million light years, everyone is dreaming, maybe it's just a aperture or nothing, it's impossible to be sure.
Hello, theme!
Seriously, when this black hole photo was first released, it was really out of my expectation. It's a little different from the black hole I imagined.
I thought there was a whirlpool in the middle of the black hole, and everything around it should be black. Unexpectedly, a black hole looks like this. Black hole was first put forward by Mr. Hawking, and now I finally see its true face. This black hole photo is very different from the black hole in the documentary.
# The first black hole photo in the world # A man of arts and science dares to say a few words about black hole photos.
I have no feelings about it. I have read some popular science of astrophysics, such as the works of Hawking and others. I'm not very interested in this photo. On the contrary, I always make a total in my mind. Is this really a black hole? I believe that black holes really exist in the universe, but in theory, according to our conditions, it is difficult to observe them, especially taking pictures of them.
Let's first look at the conditions for shooting black holes: directly observing black holes is equivalent to shooting curved space-time and requires a high-resolution telescope. If the millimeter-wave telescope is used for observation, according to the formula, its aperture needs to reach the same length as the "earth diameter".
Let's take a look at how the photo was generated: under the joint observation of eight radio telescopes distributed all over the world, after nearly two years of data processing and theoretical analysis, the first black hole photo was finally successfully obtained.
The best radio telescope in the world is the 500-meter spherical radio telescope (FAST). I don't believe anything else can be done without the participation of the eye of the sky. The reasons why Tianyan didn't attend this time are band frequency, geographical location and other factors.
I feel that this photo is based on the black hole theory and made by data analysis, rather than the real photo we imagined.
This is the first time humans have seen a black hole. This is a shadow photo of the supermassive black hole in the center of the massive galaxy M87, which is 55 million light years away. It is also the first black hole photo taken by human beings, and it is the direct "visual" evidence of the existence of black holes. This photo was "taken" in April, 20 17, and it took nearly two years to "develop".
Seeing the first black hole photo, the first feeling is the greatness and smallness of human beings. The first photo of human black hole reveals the black hole in the center of messier 87, a supermassive galaxy in the Virgo cluster, which is 55 million light years away from the Earth and 6.5 billion times the mass of the sun. This set of numbers is far away and huge for us, but as the first time I saw a black hole, I personally feel extremely lucky.
As the basic structural unit of the universe, galaxies are bright islands in the dark and vast universe, which contain a lot of dark matter, stars, gas and so on. We think that there is a supermassive black hole at the center of every galaxy.
About 100 years ago, Einstein proposed the general theory of relativity. Gravitational waves and black holes were both theoretical predictions at that time, especially black holes. Einstein didn't believe it at first, but after 100 years, that is, 20 15 years, humans first observed the existence of gravitational waves, and then observed black holes.
The universe is empty, and human beings are small, dwelling in the earth. As an intelligent species, the human thought represented by Einstein's general theory of relativity has gone deep into the universe, and the unique scientific and technological ability allows us to see further.