The mass of matter produces gravity, which we will explain step by step.

Mass is a physical quantity to measure the inertia of an object. Inertia involves force. Let's first understand what the essence of force is.

Before answering the question of the nature of force, let's know what matter is. Let's gradually understand what matter is through a series of concepts. (The space is a bit long, and there are many concepts to understand. After all, this problem is more complicated. )

The mass of an object increases with the increase of speed. Because according to the theory of relativity, the speed of an object cannot increase indefinitely (nothing can exceed the speed of light). If an object is always stressed but its speed cannot be increased indefinitely, there is only one possibility: the mass of the object becomes larger and the acceleration of the force decreases. (The resultant force on an object is equal to the product of mass and acceleration F=ma)

Mass-energy conversion. The mass and energy of matter can be transformed into each other, that is, mass can be transformed into energy, and energy can also be transformed into mass, without violating the laws of conservation of energy and mass. Mass-energy formula: E = MC 2, and mass is another manifestation of energy.

Charge and magnetic pole repel each other and opposites attract. Transformation will produce magnetism, and transformation will produce electricity. The change of magnetic field produces electric field, and the change of electric field also produces magnetic field. The changing electric field and the changing magnetic field constitute an inseparable and unified field, which is the electromagnetic field.

Quantum is an important concept in modern physics. It was first proposed by German physicist M Planck in 1900. He assumes that the radiation energy in blackbody radiation is discontinuous and can only be an integer multiple of the basic unit of energy, thus explaining the experimental phenomenon of blackbody radiation well. Later research shows that not only energy shows this discontinuous separation property, but also other physical quantities such as angular momentum, spin and charge show this discontinuous quantization phenomenon. A physical quantity is quantized if it has the smallest indivisible basic unit, and the smallest unit is called quantum. For example, "light quantum" (photon) is the basic energy unit of light with a certain frequency. Extended quantum mechanics and quantum optics have become different professional research fields. Its basic concept is that all tangible property is "quantifiable". "Quantization" means that the numerical value of its physical quantity is discrete, not continuous and arbitrary. The small circle with Planck length (10-33 cm) is the basic unit of material and spatial microstructure. Planck time (10-43s) is the smallest interval between time quanta.

The origin of matter is the movement of unit space, which can also be said to be the movement of quantum, because we know that the movement of any matter will increase the mass, and the increase of mass will be more obvious when the speed is close to the speed of light. For example, the spin of electrons forms the mass of a small space, e = MC 2 "m = e/C 2, and the mass is also a matter. Any substance is made up of moving photons (quanta), while stationary photons are not. The conversion formula of mass and energy is e = MC 2, so if we think about it in reverse, the origin of matter is the movement of space (quantum) without mass, and it is the annihilation of positive and negative matter that completely converts matter into energy, so any matter is not solid, and it can pass through as long as the conditions are right. The reason why it has supporting force is the repulsion of electromagnetic fields between spaces. Photons will also be reflected when they shine on the space where matter is formed, and they will see objects and touch them with their hands. The particle field force of the hand and the particle field force of the object are mutually exclusive, otherwise the hand will pass through the object, so any matter is nothing, but the space is interacting (electromagnetic force, gravity, etc.). ), and the gravitational field of mass matter is more and more obvious, and small mass such as quark protons only form effects at the nuclear level, so matter is also a wave that can cross each other. Matter wave is the fluctuation of microscopic particles such as photons and electrons, which has wave-particle duality like light. (Note: Quantum mechanics believes that a microscopic particle has no definite position and can appear anywhere without measurement. Once it is measured, it will get a characteristic value, that is, the observation position. See Baidu Encyclopedia for details)

Space and time are objective forms of material existence. Without matter, there is no time and space, and without time and space, there is no matter. Maybe you don't understand this sentence, it doesn't matter, we can continue to look down.

(Most of the above contents are taken from Baidu Encyclopedia, keywords: relativity, quantum, matter, matter wave)

Next, on the basis of the above understanding, we can use the middle pedal of degree psychology to understand this matter more intuitively.

First of all, through an application question and answer of degree psychology, I have a simple understanding of degree psychology.

Why does the concert affect the mood?

To explain why music affects emotions, we should first start with how personality is formed.

1. How is personality formed?

Let's look at some psychological phenomena first:

(1) At school, why: Girls are used to walking hand in hand, and boys won't have this idea even if others don't tell them; Girls are used to small groups, while boys are relatively large groups. These may all be related to the pursuit of tolerance outside.

(2) Talking about the pursuit of absolute guarantee. People who pursue absolute guarantee are used to repeated verification. People who pursue absolute security are more concerned about whether things are in their own development expectations and are prone to lack of self-confidence. However, once they set their goals, they will work harder than others.

(3) The pursuit of external tolerance and absolute guarantee all involve one thing: degree.

So how is personality formed:

The main factors affecting personality are genetic factors and environmental factors.

Let's talk about environmental factors first. The formation of character is inseparable from the environment. Everyone gradually forms his own degree of behavior according to different environments, and has his own degree standard, and everyone's various behaviors from beginning to end will affect the formation of personality.

Then, genetic factors are also one of the factors that affect personality, but how genetic factors affect personality is still unknown.

At the same time, the logical relationship between past experience and cognition in psychology makes psychology more complicated.

2. As mentioned above, personality, as a psychological feature of human personality, is a kind of thing around degree, and music is also a kind of thing of expression, so it is not surprising that music can bring you emotional catharsis.

After understanding degree psychology, you can understand matter by understanding psychology.

1. Degree and logic formation psychology.

2. If exercise is the way of material existence, then degree is the way of psychological existence.

3. Matter is also called matter wave. Quantum mechanics believes that microscopic particles have no definite position, and they may appear anywhere without measurement. Once it is measured, it will get a characteristic value, that is, the observation position.

4. Time is the quantization of logic, and the matter that leaves time is like the psychology that leaves logic. Without time, matter cannot exist, just as without logic, psychology cannot exist.

Next, what is the nature of force? There is no final answer to this question. Einstein spent his whole life trying to unify mechanics, trying to attribute all forces to a special phenomenon or the manifestation of a force in different situations, but in the end he failed. It is likely that there is still a long way to go before mankind can really solve this problem. But I still want to express my personal views here. Based on the comprehensive understanding of the psychology of matter and degree, I personally think that the essence of force is the result of spatial maintenance logic operation. Both matter and energy are developing in a reasonable direction. Maybe you think it's a little too general, so you have no choice but to have limited knowledge of the world. However, I can still explain it psychologically. Take the pursuit of absolute protection and the pursuit of tolerance to the outside world. In maintaining logical operation, it is easier to understand the pursuit of absolute guarantee and tolerance to the outside world. You can understand it as gathering in a place with high fault tolerance. )

Nature follows the principle of simple logic. Because of the principle of logical simplicity, the unity of psychology and matter may be an instinctive trend in the natural laws they follow, so it is no longer so difficult to understand that psychology and matter sometimes show similar characteristics. Therefore, using psychology to explain physics may have certain reference value.

After getting the basic assumption that the essence of force is the result of the logical operation of space maintenance, we begin to explain quality.

The mass and energy of matter can be converted to each other. Personally, quality is also a kind of strength.