The physical concept of space time, is space time the form of existence of matter?

Space-time is the form of existence of matter.

The part of the movement of a material entity is called "space", and Einstein's general theory of relativity states that space and time bend due to the presence of matter, and the gravitational field is actually a curved space-time. In general relativity, gravity is described as a geometric property (curvature) of space-time.

The discovery of the concept of "space-time":

Einstein was surprised to find that time is also fast and slow, if you are close to the speed of light, then the time of people on the ground will become very slow, this is the content of the previous special theory of relativity, so it will not be repeated, so the plasticity of time has been proved to be correct. This also indicates that time is no longer absolute, but relative.

Later, as Einstein continued to explore, he found that space is not absolute, the length of any object is 5 meters, then everyone's 5 meters should be the same length, but if you move at close to the speed of light, people on the ground will find that your length will shrink in the direction of motion, that is to say, the length of the object that was originally a fixed value will change once it moves.

The fundamental reason for the change in length is the change in the space itself. Therefore, the malleable nature of space has also been proven to be correct. This also shows that space is not absolute, but relative.

Space-time, abbreviated for time and space. It is a Kikai concept of mechanics, physics, astronomy, and philosophy.

Philosophically, the interdependence of space and time expresses the evolutionary order of things. The divergent concepts involved are Zhou Yili"Qiankun", Taoist"tract"and the great judgment of the way of Confucius and Mencius into wisdom.

Time and space are both absolute concepts and fundamental properties of existence. However, the measured values are relative to the reference frame.

Time is an abstract concept that expresses the arrangement of life and death of things. Its connotation is infinite and eternal, and its extension is the measurement of the length and order of all events. "Endless"Refers to the fact that time has no beginning and no end"Forever before"Refers to the fact that the increment of time is always positive.

Space is the concept of the image of the drawing, which expresses the scope of the birth and death of things. Its connotation is unbounded eternity, and its extension is the measurement of the size and relative position of all objects. "Unbounded"Refers to the center of any point in the space"Forever"Refers to the perpetual presence of space in the present moment.

In the special theory of relativity, the speed of light is the common ruler for measuring time and space, and the changes in time and space show the law of dependence on this common ruler, that is, obey the Lorentz transformation. Therefore, the measured values of time and space are relative to the specific inertial frame.

Space-time is the direction and speed of the movement of matter. When light passes through the gravitational field, the photon will change direction velocity. "Time and space" is an abstract concept that expresses the arrangement of life and death of things.

Time and space are absolute concepts, fundamental properties of existence. Measurements are relative to the reference system. Its extension is a measurement of the length and sequence of all events, and the connotation is infinite and eternal.

In the special theory of relativity, the speed of light is a common yardstick for measuring time and space, and changes in time and space exhibit laws that depend on this common yardstick. Therefore, the measurements of time and space are related to a specific inertial system. Space and time are also some of the oldest concepts in human civilization.

In ancient times, primitive farming and grazing required surveying the earth and adapting to the weather, hence the creation of simple concepts of time and space and methods of measurement. In ancient times, it was said that "the four directions of up, down, left, right and left are called the universe, and the universe was and is called the universe".

Physicists initially imagined microscopic space as a mosaic of small pieces of space, believing that if we zoomed in on the world, we would see a chessboard-like structure. But this is not true, one problem is that the grid lines of the checkerboard specify some special directions, which will create some asymmetry contrary to special relativity. For example, light of different colors will have different speeds of propagation, like prisms, which break down light into components of different colors, and these effects are often difficult to detect, but their effects will eventually become apparent as long as they violate the theory of relativity.

The beginnings of modern science must have involved the concepts of space and time and their methods of measurement. Their properties are independent of any particular object and its motion. The properties and laws of motion of objects are closely related to how they are measured in spatial and temporal coordinate systems.

A simple picture of the universe is that in infinite absolute space and infinite absolute time, an infinite number of stars or galaxies are essentially stationary, and the average luminosity is roughly the same. To determine the inertial frame, Newton abstracted the concepts of three-dimensional absolute space and one-dimensional absolute time.

The simplicity of this universe is unstable under gravity, and it is not even possible to ask the simple question of why the night sky is dark. The geometric properties of space are not properties of individual atoms, but new, collective, and approximate properties of a system composed of a large number of atoms. Since the temperature of a black hole can rise or fall, it is reasonable to speculate that it should have a microstructure.

Since a black hole is just an empty space, its internal components can only be the components of space itself. While the vast and empty space may seem simple, it hides a great deal of complexity.

This article has ended.

Time and space are not forms of material existence, but properties of material existence.

Changing the properties of matter can certainly change the way matter exists.

To put it simply, time represents sequentiality and persistence (i.e., moment and duration), and space represents orientation and capacity (i.e., coordinates and volume).

Space is the prerequisite basis for the existence of matter. If there is no space, all matter in the world can only exist at a mathematical point (and a mathematical point means that there is no size, in fact, it cannot exist).

Time is the inevitable result of the movement of matter. If there is no time, it means that the world is dead (and it is impossible to imagine how still matter came from).

The world is material, matter is in motion, matter and motion are inseparable, so space and time cannot be separated, time and space are the fundamental attributes that matter has at the same time. 】

Time is an eternal one-dimensional fundamental coordinate system.

Physics is responsible for explaining physical phenomena and not for nouns.

For example, apples will spontaneously fall from high places on trees, cabinets, or any high place, and not only apples, but everything on earth will spontaneously fall from high to low places when there is nothing to support them. How can this phenomenon be explained physically?

Answer: Classical mechanics believes that there is a gravitational force between any two objects with mass, and the reason why an object spontaneously falls to the ground or from a high place to a low place when there is no thing to support it is because of the gravitational effect of the earth on the object.

How time is explained physically.

Time is the same fourth dimension as the space dimension. In the human model of the universe, it is necessary to involve "time" in the description of the universe.

And we know that the basic logic of the universe model is:

If event B occurs in region A of the spatiotemporal coordinate system, then event D must occur in region C in the spatiotemporal coordinate system. Obviously, in such a model built with human logic, time is only one dimension used to describe the position of a vector. In our usual understanding, this is also the case.

But why is it that human beings can move around at will in the other three dimensions of space, but can only move forward in the dimension of time?

It's nothing more than a conflict of the human brain.

Human logic needs four dimensions to explain the universe, but the way humans use it to get information!

Time Definition: (Physical Definition) Time is the time interval between two moments.

First, in a reference frame (an inertial frame or a non-inertial frame is required, but the spatial range of the process is infinitely small), a physical process is determined, it is set as a unit of time, and then this process is compared with other processes to determine time.

What people get in life is not only the idea of the order of events, but also the concept of the length of time interval, which is based on the comparison of two processes - for example, two things start at the same time, but one thing ends and the other thing is still going on, so that the other thing takes longer. Here we can see that people use measurable processes to measure abstract time.