Is the theory of relativity right, is the theory of relativity correct

The theory of relativity, as a theory, is correct within its scope of application, and when it goes beyond the scope, it cannot be said to be incorrect, but it is not applicable.

But there can be a lot of mistakes about a theory, just like classical physics is correct, but many people don't understand it completely.

At present, there are many errors in many textbooks, but these errors are differences in everyone's understanding of a theory, and do not represent errors in the theory itself.

For example, the theory of relativity overturns the absolute view of space-time, which is a false statement. The theory of relativity only abandons the ether, and there is no question of absolute space-time in the theory of relativity, which does not mean that the concept of absolute space-time is overthrown.

Although people initially speculated that there was such a substance as "ether", which was the medium of all motion, with the development and progress of science and the improvement of people's technical level, it was found that the existence of such a thing as ether as a substance was impossible after experimental measurement, so it became a fictitious absolute reference established in the theory of absolute time and space, just like power lines, magnetic field lines, and longitude and latitude lines on the earth are objectively non-existent things, but they are also the reference system of absolute motion.

But the ether is not realistic as a frame of reference, because a substance that does not really exist cannot be captured and measured, and therefore cannot be truly used as a frame of reference.

But light has been shown to have a constant velocity in a vacuum, so that although the aether cannot be captured, light can, so light can be used instead of the aether as a frame of reference according to the principle of relative motion.

Unlike ordinary matter as a frame of reference, the speed of light cannot be assumed to be 0, because that would give all subjects a very large initial velocity, so it must be assumed that the speed of light is a fixed value. This is the principle of the invariance of the speed of light.

The theory of relativity is based on the speed of light as a reference speed, just as we can assume that the river is stationary and the banks are moving, just as it is understandable to assume that a reference object is justified. Some people say that the basic assumption of the theory of relativity that the speed of light is constant has not been proven, so who can prove that the ground is stationary when we assume that the ground is stationary? Assumptions do not need to be proven, and there is no right or wrong.

If we assume that light is a reference, we must abandon the aether as a reference, just as if we assume that the river is still, we must abandon the riverbank stillness, not to overturn the aether theory, but to abandon the ether theory. Just as to assume that the river is still is to abandon the stillness of the ground.

Abandonment and overthrow are two different concepts. It cannot be said that the assumption that the ground is stationary is overturned.

Of course, because the frame of reference is changed, the original physical expression will inevitably change. It's like the same curve has different forms in different coordinate systems. To study the theory of relativity, we should consider the problem from the basic premise that the speed of light is constant, and we cannot insist on the theory of the speed of light at the same time, which will lead to the problem of self-contradiction.

Many of the so-called "mistakes" are caused by using different frames of reference at the same time, such as the twin paradox.

Such an error does not mean that the theory of relativity itself is wrong.

Is the theory of relativity wrong? Any physical theory can only be called correct if it has been confirmed by experiments or practice, otherwise it can only be done until it is confirmed. The theory of relativity has been proven, at least not experimentally or practically. If you want to say that there is a problem with the theory of relativity, you have to take evidence.

In the history of physics, only theories have been overturned by experiments, and no theories have overturned experiments. For example, the theory of the existence of "ether" in the universe, but it was later disproved that the Michelson-Morey experiment proved that there was no ether.

Although the theory of relativity has long been one of the foundations of modern physics, there are still many people who are inverse. Someone gave an example to oppose the theory of relativity, since it is relatively said that the faster the speed, the slower the time, and the speed stops when the speed of light is reached, then wouldn't the person who was seriously injured on the light-speed spaceship be alive forever?

It is safe to say that those who oppose the theory of relativity do not understand it. It has been more than 100 years since Albert Einstein created the theory of relativity, which has withstood a series of rigorous tests and has become one of the foundations of modern physics. So many intellectually brilliant physicists don't object to it, and really think that a simple example can overturn the theory of relativity?

In the above example, the theory of relativity is completely misunderstood. First of all, the theory of relativity does not say that time on a light-speed spacecraft stops at all. Because the theory of relativity prohibits a spaceship from reaching the speed of light, otherwise, the spacecraft would require an infinite amount of energy.

Second, the relativity theory says that the faster the spacecraft, the slower time passes, and the speed tends to stop at the speed of light, which is the result of the observer in the stationary frame of reference. The people on the ship don't feel like their time has slowed down at all, it's business as usual, and they're aging normally. If someone is seriously injured on a spaceship moving near the speed of light, it will be a short life.

But to observers on the ground, time on the sub-light spacecraft slows down, and those seriously injured on board will die much later. Therefore, things in the two frames of reference cannot be confused.

Historically, there was a famous paradox against the theory of relativity, the twin son paradox, but it turned out to be wrong as well. If there are twin brothers on Earth, the younger brother stays on Earth, and the older brother flies into space in a sub-light spaceship. Due to the time dilation effect, when the older brother returns to Earth, his younger brother will become older than himself.

But movement is relative, and for the older brother on the spaceship, the younger brother on Earth is away from the spaceship, so the younger brother's time will pass more slowly. So, whose time is slowing down?

Explaining this phenomenon requires the use of the concept of the worldline of Minkowski space or the general theory of relativity, which will not be used here. To put it simply, the spacecraft needs to accelerate, decelerate, turn around, accelerate again, and decelerate again from leaving the Earth to returning to the Earth, so it is the observers on the spacecraft who really feel the inertial force, and they experience the real acceleration, so that time passes more slowly than on Earth.

The theory of relativity is absolutely true and infallible, and Einstein worked by luck to reduce the microelement d to the famous principle of the invariance of the speed of light (x=ct,x'=ct', the position is equal to the moment of velocity multiplied by the moment), entering the four-dimensional space-time to establish the theory of relativity, the discovery of gravitational waves, and the application of GPS, fully illustrate that the reduction of the microelement D is absolutely correct.

Because of the limited acceptance of the public, the theory of relativity cannot be popularized to the compulsory education stage, and the sad result in the end is that a considerable number of people only believe that Newtonian mechanics is correct, and they do not learn the theory of relativity because it is pseudoscience