What the hell is the theory of relativity, and why do people always mention it?

The theory of relativity is also a tool of physics, he can describe a lot of Newton's laws can not describe, such as the orbit of Mercury, or many other problems, Newton's era was replaced by Einstein, the same theory of relativity in the development of science has also appeared a lot of shortcomings, and has been replaced by string theory, if you want to know something about string theory, it is recommended to watch the science education film "Elegant Universe", as for why the theory of relativity so attracts the masses, I think it is because of the theory of relativity that the theory of time and space has appeared, A series of theories such as going back to the past have made the guessing of what can be seen in science fiction movies supported by theories, and people have a subconscious pursuit of this beauty. In the scientific community, it may still have its due role in the development of physics.

The theory of relativity is actually nonsense, using a model to explain a phenomenon, and calling this model a theory

The theory of relativity is to link time, velocity, and displacement, thus defining the four-dimensional space, and on this basis, boldly imagining and proposing the reversibility of time, which is related to the universe, and proposing that the starting point of time is the starting point of space.

The theory of relativity is the theory of time and space, and it is by no means a superstition that travels through the movies! It's serious! It changes our perception of time and space.

There is no way, the theory of relativity is full of loopholes, and there are endless opponents of it, so it is constantly mentioned.

See Encyclopedia: Science, Popular Science, Objective, Time, Vacuum, Accepted, Relativity, Inverse Relativity, Universal Relativity.

Albert Einstein came up with the theory of relativity. The theory of relativity is a theory about space-time and gravity, which can be divided into special relativity and general relativity according to the different objects of study. 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 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.

Traditionally, in the early days of Einstein's theory of relativity, the classification of special versus general relativity was marked by whether the question under discussion involved a non-inertial frame of reference. It is generally believed that the difference between special and general relativity lies in whether the problem under discussion involves gravity (bending space-time), i.e., special relativity only deals with those problems that have no gravitational effect or can be ignored by gravitational action, while general relativity discusses physics when gravity acts.

The special theory of relativity applies to elementary particles and their interactions, describing all physical phenomena except gravity. General relativity explains the laws of gravity and its relationship to other natural forces and is applicable to the fields of cosmology and astrophysics, including astronomy. According to the theory of relativity, each satellite is in motion with respect to its users on Earth and is therefore in a different frame of reference.

Global positioning systems, such as GPS and GNSS, must take into account all relativistic effects, otherwise they cannot work accurately.

In the language of relativity, the background space-time of the special theory of relativity is straight, that is, the four-dimensional trivial manifold is matched with the Min's gauge, and its curvature tensor is zero, also known as the Min's space-time; The background space-time of general relativity, on the other hand, is curved, and its curvature tensor is non-zero.