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If no matter can escape the gravitational pull of a black hole, then how does gravity itself escape

author:Senior science popularizer

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The black hole in the universe is so large that its gravitational pull is so strong that almost no one can escape.

As a result, black holes are defined by scientists as a celestial body known for their strong gravitational pull, but no one can tell us how these powerful gravitational forces in the universe escape from the black holes themselves.

So, is there any matter in the world that can escape the gravitational pull of a black hole, or can gravity really escape the attraction of a black hole?

1. The birth of black holes.

Black holes were once thought of as a fictional object in science fiction movies, however, when Schwarzschild first mentioned it, the existence of black holes was discussed.

Since then, research on black holes has gradually revealed the true appearance of black holes, and at the same time, people have learned more and more about black holes.

Schwarzschild was a scientist living in the 19th century, who was curious about the exploration of the universe and made great contributions to the exploration of the universe.

The black hole first mentioned by Schwarzschild is considered a peculiar celestial object whose gravitational pull is even strong enough to swallow light, hence the name "black hole".

After that, people gradually studied black holes in depth, Otto Struvy treated black holes as a theory, and Neumann later deduced the related theories of black holes, and since then, the concept of black holes has gradually been recognized.

If no matter can escape the gravitational pull of a black hole, then how does gravity itself escape

However, the nature of black holes has become more complex and abstract as people have studied it, so there is a need for a framework that can connect these concepts and theories, as well as a theory that can formalize such a framework.

It wasn't until 1915 that Albert Einstein proposed the general theory of relativity, which was widely used in various fields, not only to provide a framework provided by the Nobel Prize, but also to link the concepts and theories in the framework to each other.

If no matter can escape the gravitational pull of a black hole, then how does gravity itself escape

In 1915, Albert Einstein proposed the general theory of relativity, which describes how matter affects the shape of space-time, and the greater the matter and energy, the greater the distortion of space-time.

In general relativity, gravity is seen as a force generated by the distortion of space-time, which in turn is produced by matter and energy, so we can think of matter and energy as the source of gravity.

If no matter can escape the gravitational pull of a black hole, then how does gravity itself escape

Einstein's theory of general relativity contains four equations, which are called "field equations", but one of them is more important to us, and that is to describe the relationship between space-time and mass.

In this equation, we can see how mass and energy affect the shape of space-time, so we can reduce it to a simple object like "mass and energy affect the shape of space-time".

In this object, we can see that mass and energy themselves affect the shape of space-time, and at the same time, it is also affected by the shape of space-time, so gravity is the result of the shape of space-time, and at the same time, it affects the shape of space-time.

So, how is gravity interconnected with space-time?

If no matter can escape the gravitational pull of a black hole, then how does gravity itself escape

2. Characteristics of gravity.

The gravitational force as we know it is the same as the electromagnetic force and the strong nuclear force.

However, gravity can sometimes behave like a form of immateriality, that is, it is able to escape the attraction of a black hole, which seems to be an "act" of gravity itself escaping.

However, gravity is a very special kind of substance, and it is an interacting force like the electromagnetic force we know as well as the strong and weak nuclear forces.

If no matter can escape the gravitational pull of a black hole, then how does gravity itself escape

Secondly, gravity as a substance, like any other matter, has the ability to move, and at the same time, the motion of gravity is also affected by other matter, just like other substances in motion.

Thus, even in general relativity, gravity has such a property that we can think of as a substance that, like any other, perceives motion and at the same time, perceives other matter.

If no matter can escape the gravitational pull of a black hole, then how does gravity itself escape

Secondly, the motion of gravity is different from the motion of other matter, it is a kind of "field" like the electromagnetic force.

In this "field", gravity, like the electromagnetic force, also has energy, and at the same time, its energy affects the motion of other matter, so in this gravitational "field", the motion of matter is affected by gravity, and therefore, gravity is generated.

Therefore, the motion of gravity is a substance like any other matter, but gravity as a substance has very special properties, so we need to describe it as a "field".

If no matter can escape the gravitational pull of a black hole, then how does gravity itself escape

In Einstein's general theory of relativity, gravity is no longer an interacting force, but a shape of space and time generated by matter and energy in the universe, and at the same time, it is also able to perceive the motion of other matter, so gravity is also a "field".

Therefore, gravity will be perceived by other matter, and its motion will be perceived by other matter, and gravity will also have the same effect on other matter.

3. How gravity escapes.

The gravitational pull of a black hole is so strong that no matter can escape, however, gravity has a range, and only outside of this range can matter escape the control of gravity.

When the matter reaches this range, it will fall within the gravitational range of the black hole, and it will no longer be able to escape the black hole's control.

This range is called the "event horizon", which is a boundary within which no matter can escape the attraction of a black hole, and at the same time, it is also a boundary within which no matter can perceive the existence of a black hole.

In fact, the event horizon is a property of black holes, and it is also the result of Einstein's general theory of relativity, which is the scope of gravity.

Outside this range, matter can escape the control of gravity, and at the same time, it can also perceive the existence of black holes, but within this range, it cannot escape the control of black holes, and at the same time, it cannot perceive the existence of black holes.

If no matter can escape the gravitational pull of a black hole, then how does gravity itself escape

Therefore, gravity is a special kind of "matter", which, like other matter, can sense the movement of other matter, and will also have an effect on other matter, but the scope of gravity is limited, as long as the matter is outside this range, it can escape the attraction of the black hole.

Black holes can't escape, but gravity can, and that's what gravity is a special kind of "matter".

If no matter can escape the gravitational pull of a black hole, then how does gravity itself escape

Black holes are a strange celestial body, its mass is very huge, and the gravitational pull is also extremely powerful, people have calculated the mass of black holes, and the final results show that the mass of black holes is equivalent to the weight of 6.5 billion suns.

Therefore, the gravitational pull of the black hole is incomparably strong, and almost no matter can escape, because the black hole itself has swallowed all the matter, which is why no one can "see" the black hole for what it really is.

If no matter can escape the gravitational pull of a black hole, then how does gravity itself escape

However, scientists have studied the gravitational pull of black holes to derive some properties of black holes, and at the same time, scientists have also used modern science and technology to observe black holes, thus obtaining some information about black holes.

epilogue

As a strange celestial body in the universe, the existence and nature of black holes are still a hot topic in the scientific community.

At the same time, the observation of black holes is also a challenge for the scientific community, people have used modern science and technology to make observations, and at the same time, they have a deeper understanding of what black holes look like, but at the same time, they also reveal some unknown things that may exist in black holes.

The research and exploration of black holes has greatly enriched our understanding of the universe, and also allowed us to face the vastness and mystery of the universe with more humility.

At the same time, the exploration of black holes also reflects the curiosity of human beings about the unknown, and through the exploration of black holes, our understanding of the universe has been continuously expanded.

If no matter can escape the gravitational pull of a black hole, then how does gravity itself escape

In the future, people will continue to study black holes, and through the study of black holes, people's understanding of the universe will be more profound, and at the same time, the spirit of human exploration of unknown areas will continue to be promoted and carried forward.