How physics made the leap from classical mechanics to relativity5

The theory of relativity is not an advanced theory of classical physics, but a special theory that solves the problem of what phenomena will be seen when moving close to the speed of light, and when the measured speed is close to infinity, the theory of relativity degenerates into a classical theory.

In the same way, when you think about what phenomena you will hear when you are close to the speed of sound, you have the theory of sound relativity.

Einstein didn't know that space is not a vacuum, and that vacuum is relative; I don't know that air, water, glass, and many other substances are optical mediums; I don't know the time he defined, which does not conform to the scientific definition of objective laws. He did not use the principles of wave science at all to solve the problem of light.

Through electromagnetism.

If you study physics in the future, you will thank me for this.

Classical mechanics cannot explain the high.

The physical manifestation of speed motion.

Elephants and microscopic physical phenomena.

The theory of relativity can explain high-speed physical phenomena more reasonably, and quantum physics can explain microscopic physical phenomena very well.

The theory of relativity is useful to theoretical physicists, but it is very cumbersome and unnecessary to explain many physical phenomena related to people's production and life with the theory of relativity. It's like you know that 20x20=400, but you still need to use 20+20+20...There is no need to explain.

Most of the knowledge of engineering physics is based on the theoretical system of classical physics.

Classical mechanics is a special case of the theory of relativity (the low-speed case).

When the velocity is very low (negligible relative to the speed of light), the results of relativity are basically the same as those of classical mechanics (the error is too small to be ignored).

Since Newton was not technologically advanced at that time, the speed of objects that could be observed was very low, and could not reach close to the speed of light, so he measured an approximate quantity. But when the object is close to the speed of light, the actual situation is very different from the classical mechanics.

In fact, you can also understand that the theory of relativity is correct, and classical mechanics is just the situation when an object is rounded up at low velocity. For example, in the case of low velocity, after a series of calculations, the theory of relativity calculates that the velocity of an object is dozens of zeros) 0777m s, then I can ignore those small quantities and directly use the crude calculation of classical mechanics, which is 3m s.

But in the case of telling, the error between the two is relatively large, or even completely different. Experiments have shown that the theory of relativity is right.

From the last two words of the title"development"Knowing that the fourth one is definitely right, so exclude A

Einstein's theory of relativity was originally developed in the field of electromagnetism, so in the end, that law was still a macroscopic law at that time. The introduction and development of molecular movement is the beginning of the Wookiee human beings to enter the world of micro-observance and understand the objective laws, so the first one is not right.

The theory of relativity is still gradually recognized by people, so people think that Einstein is a great physicist, but from the current point of view, after looking at modern physics Einstein, except for a limited number of people such as Hawking, there are no epoch-making figures, and even Hawking cannot be called an epoch-making figureBecause this is not up to our contemporaries, it is up to future generations to evaluate. <>

What is called an epoch-making figure, that is, his thinking has surpassed this era for many years, such as Einstein, some conjectures and some theories put forward in his theory of relativity, which have gradually been verified by people's practice, so people think that he is a very great physicist, because at that time he did not know what kind of state space was, and at that time there was very little information about the countries that could really enter space, but he came to such a correct conclusionTherefore, his ideas are far ahead of the times, but who is right for what these physicists are proposing now depends on the actual activities of the future. <>

Some people say that after the death of Newton and Einstein's generation, there have almost never been any epoch-making figures, but in fact, this is not the case, because epoch-making figures are left to future generations to judge, so we don't know, and the activity itself is very profound, and the theories put forward by those characters of the painting era are told to ordinary people, and everyone does not understand or know the greatness of his theory, just like Einstein did not win the Nobel Prize for his theory of relativity. Because the jury at the time did not approve of his theory, Einstein eventually won the Nobel Prize for his conclusion on the wave-particle duality of light. <>

Many things can only be handed over to future generations to judge, whether the theories put forward by some of our scientists are right or not, and whether the development of science and technology to a certain extent will naturally be verified, and whether some of the rules and regulations we implement now are right? Decades from now, reality will also prove that we are now talking about who is right and who is wrong, and it really doesn't make senseBecause it's all subjective, you can't come up with a valid proof that he's right or wrong, so there's no point in arguing.

There are two types: quantum theory and string theory. These two theories have had as much influence on the theory of physics as the theory of relativity.

The reason for the occurrence of gravitational force (brief description): When the high-energy particles moving in the universe pass through matter (celestial bodies or particles), part of them are intercepted and absorbed to form a weak energy region (Einstein's space-time curvature), which is the gravitational range mv2=e=mv2 (the formula of the law of conservation of energy conversion). For more details, please see the forthcoming gravitational hypothesis, "Elemental Periods and the Causes of Gravitation".

It is the great theory of the universe, because this theory has subverted people's understanding of the universe, and has aroused research and discussion among various physicists in the industry.

Stephen Hawking's parallel universe, which refers to the various universes contained in the multiverse.

The most influential physics and development of physics papers today is that the influence of physics has gone far beyond the technical field, and its scope may have extended to a higher level of ideology and culture.

A lot of people talk about the theory of relativity, but they don't actually know what the theory of relativity says.

Classical mechanics and relativistic mechanics are both macroscopic motion, but classical mechanics can only explain the motion of objects at low velocities, in classical mechanics, motion is relative, and classical mechanics is represented by Newton; The phase beam seepage theory of mechanics, which says that the motion of an object when it is close to the rubber, equal to or even greater than the speed of light (for example, when an artificial satellite is moving around the earth, it needs to rely on relativistic mechanics to correct time), relativistic mechanics has little to do with relativity, but represented by Einstein, in relativistic mechanics, velocity and time are relative.

Quantum mechanics is the mechanics of particle motion, of which the more classic is Pauli's incompatibility principle, represented by Planck and others.

Classical mechanics is the basis of relativistic mechanics, and quantum mechanics often relies on relativistic mechanics.

The above is my personal opinion, if you have any questions, ask me, and I will think again.

It can be summarized in this way:

Classical mechanics is the theory of special relativity at low velocity (v, while the general theory of relativity adds the concept of gravity on the basis of the special theory of relativity, and is a theory that discusses the interrelationship between time, space, and gravity, which is more complex. But again, he did not completely overthrow classical mechanics, which is still an approximate theory under certain conditions.

Throughout the history of the development of human science, any theory, as long as it can conform to strict logic and reasonably explain the discovered experimental phenomena, can also successfully predict the undiscovered phenomena and finally be confirmed by experiments. Then, this theory cannot be completely wrong. But it can never be perfect.

Because it is always only an approximate form of the objective laws of nature under certain specific conditions and within a specific scope of application. Because of this, the natural world can be known, but the knowledge is never-ending.