Who can explain the theory of relativity in the vernacular, it is better to have a metaphor, to make

Let's start with a physical phenomenon: if you are still holding a gun and shooting, the bullet velocity is the same as when you shoot forward and backward. If you are riding a galloping horse and shooting forwards and backwards, the speed of the bullet on the ground is faster than the speed of shooting backwards, the difference is 2 times the speed of the horse's running speed.

This is easy to understand.

However, at the end of the 19th century, scientists discovered an unexplained phenomenon, if a person on the ground shines forward and backward with a lamp, the speed of light is the same, if a horse shines forward and backward, physicists at that time thought that the speed of light on the ground should be faster than the speed of light backward, but the experimental result is that the two speeds of light are the same. Even more curiously, the same is true for measuring the speed of light forward and backward on horseback (with the horse as the rest of the earth as motion). This is in classical mechanics.

is unexplainable.

Einstein. The theory of relativity explains this experiment. Because in classical mechanics, we believe that the time on the ground is as fast as the time on the ground, and the length of the ruler seen immediately on the ground is the same length as the length of the ruler seen on the ground.

Einstein's theory of relativity cast doubt on this, and on the basis of rejecting the above "self-explanatory" common sense, the theory of relativity was introduced. In the theory of relativity, different frames of reference.

The time in time is not the same as the length measured for the same object.

If the horse is running at a constant speed, the problem is special relativity.

If the horse is running at an accelerated pace, the problem is general relativity.

According to Einstein's theory, there is no such thing as an absolutely stationary frame of reference (such as the earth), and there is no question of who is at rest and who is in motion between the frame of reference on horseback and the frame of reference of the earth, and the motion is relative. Einstein's theory makes inertial forces.

Gravitational force and so on are self-consistent in this theory of relativity.

The theory of relativity is the theory of the invariance of the speed of light.

I'll use the game to explain it to you.

In Grand Theft Auto 5, we move around the game, and the speed of light is how fast the computer graphics card loads the map. Because the computer CPU GPU hard disk speed is fixed, there is a maximum value. Therefore, there is also a maximum speed for map loading and rendering, which is centered on the player's coordinates and renders and loads the map in the direction you are moving, which is the speed of light.

As long as you play this game with this computer, it is impossible for the map to load faster than the speed of light, and the hardware limitation is dead. Of course, you can control the movement of your protagonist at an infinite speed that is close to the speed at which the map loads, but never faster than that. If you move too fast and the map doesn't have time to load, the game will freeze and time will slow down.

So in reality, the universe may also be a game, and the processor needs to load the map, and this speed has a maximum value. Light travels through the map, and it is impossible for the speed to load faster than the map. If I really reach the speed of light, the server in this universe will get stuck.

Explaining the theory of relativity in one sentence provides a concise interpretation of the theory of relativity in plain language. The popular explanation of the theory of relativity is to use popular language to concisely explain the theory of relativity, so that the language is concise and easy to understand. What is commonly referred to as the theory of relativity.

The theory of relativity is all about the discussion of problems by specific people from a specific angle, and the comprehensive discussion of problems, no matter who they are, will agree that objective discussion is the law of science.

Therefore there is no such thing as relativity in science. Einstein's theory of relativity.

It was originally used to explain what happens when the speed of movement is close to the measured speed. Because the velocity is relative, so all kinds of measured velocities are relatively close, so the theory of relativity should have a wider range of use.

The meaning of the theory of relativity

Traditionally, in the early days of Einstein's theory of relativity, the question of whether or not the question involved a non-inertial frame of reference was discussed.

as a special and general theory of relativity.

Classification of signs. With the development of the theory of relativity, this method of classification has become more and more disadvantageous—the frame of reference is with the observer.

Related, to divide physical theories in terms of such a relative physical object.

It is not considered to reflect the essence of the problem. It is generally accepted that the difference between special and general relativity is whether or not the problem under discussion involves gravity (curved space-time), i.e., special relativity.

It deals only with problems where there is no gravitational force or where the gravitational force can be ignored, while general relativity deals with physics when there is a gravitational force.

In the language of relativity, the background space-time of special relativity is straight, that is, the four-dimensional trivial manifold is matched with Min's.

The gauge, whose curvature tensor is zero, is also known as Min's space-time.

Albert Einstein once said that if you sit with a beautiful woman, you will feel that time flies, but if you sit with an ugly woman, you will feel that time is unbearably slow, and this is the theory of relativity. The motion of an object is relative and depends on the frame of reference you take. The measure of time and length in each frame of reference for relative motion is not the same.

For example, Cuba's Robles broke Liu Xiang's world record in the 110-meter hurdles some time ago, but those in a spaceship moving close to the speed of light relative to the Earth will think that he did not break the record, and those on the spacecraft measured that he would have taken longer to reach the finish line. This is because in frames of reference that move close to the speed of light, the measure of time becomes longer.

In the same way, if you are wearing 25 cm shoes, the length of the shoes you are wearing by someone on a spaceship may only be 20 cm. Another point is that the high-speed motion does not change the simultaneity of the event, and the two cars that reach the end at the same time appear to arrive at the same time on the ship. However, the order in which events occur at different times may be reversed, and the people on the ship may see that you eat the apple first, and then see the apple fall to the ground.

The theory of relativity is a theory about space-time and gravity, mainly founded by Albert Einstein, and can be divided into special relativity and general relativity according to the different objects of his research. The theory of relativity and quantum mechanics revolutionized physics, and together they laid the foundations of modern physics.

The theory of relativity has greatly changed the "common-sense" concept of the universe and nature, and has put forward new concepts such as "simultaneous relativity", "four-dimensional space-time", and "curved space-time". However, in recent years, there has been a new understanding of the classification of physical theories, which distinguishes classical and non-classical physics according to whether their theories are deterministic, that is, "non-classical = quantum". In this sense, the theory of relativity remains a classical theory.

The animated short provides a brief introduction to Einstein's general theory of relativity.

In an easy-to-understand way, it will take you to understand the special theory of relativity, and ensure that you will be surprised to close your mouth.

Explain in layman's terms what the theory of relativity is about.

The theory of relativity is a basic theory about space-time and gravity, mainly founded by Albert Einstein, and is divided into special relativity (special relativity) and general relativity (general relativity). The basic assumption of relativity is the principle of relativity, that is, the laws of physics have nothing to do with the choice of frame of reference. The difference between special relativity and general relativity is that the former deals with the laws of physics between frames of reference (inertial frame of reference) that move in a uniform linear motion at a uniform speed, while the latter generalizes to frames of reference with acceleration (non-inertial frames) and is widely used in gravitational fields under the assumption of the equivalence principle.

The theory of relativity and quantum mechanics are the two fundamental pillars of modern physics. Classical mechanics, which laid the foundation of classical physics, is not suitable for objects moving at high speed and in the microscopic field. The theory of relativity solves the problem of high-speed motion; Quantum mechanics solves problems under microscopic subatomic conditions.

The theory of relativity subverts the "common sense" concept of the universe and nature, and proposes new concepts such as "relativity of time and space", "four-dimensional space-time", and "curved space".

The animated short provides a brief introduction to Einstein's general theory of relativity.

In an easy-to-understand way, it will take you to understand the special theory of relativity, and ensure that you are so surprised that you can't close your mouth.