How to explain the relationship between entropy and time in a simple way?

In our material world, we live in a three-dimensional world, and time and space together form a four-dimensional space-time. The origin of time is the process of existence of things. Time is a natural attribute of all things, time is the representation of existence, the record of the process, and the parameter by which people describe the process of existence and its fragments.

The state of existence of things is nothing more than static and motion changes, and the movement changes of things are not only their displacement in space, but also the change of their properties. Time is the key to determining whether a general thing is in a static stage or a stage of change in motion. Things in general have a moment where they begin and where they end.

But there is at least one thing to be excepted, and that is absolute space. The process of existence of absolute space, absolute time, has no beginning and no end. The existence process of everything else can correspond to a part of absolute time.

Of course, the time of other things can also correspond to each other under certain conditions. The universe is a unity composed of space, time, matter, and energy. It is a synthesis of all space and time.

The universe as it is generally understood refers to a continuous system of space-time in which we exist, including all matter, energy, and events in between. Therefore, it can be said that time is not only a vassal to the universe, but sometimes a master (black holes are light, and they cannot escape speed)!<

The universe is eternal balance, and time is reincarnation. Contains all the changes in buds.

Entropy is a thermodynamic concept, the relationship between entropy and time is that entropy increases with the passage of time, the law of entropy increase, the so-called entropy is disorder, and the relationship between the universe and entropy is that the universe recognizes that a moment corresponds to an entropy, and the entropy of the universe is getting bigger and bigger with the passage of time!Mathematically, entropy is an increasing function of time, and in layman's terms, the universe becomes more and more disordered as time passes.

Time is just a coordinate set by people to express the laws of things. In order to express anything, it is necessary to set up coordinates relative to this thing. For example, for the expression of quantities, a series of natural numbers is set up.

The universe is the largest expression of the space in which nature exists.

In fact, all of our expressions of things are relative expressions based on our own centers of expression. None of them are an all-encompassing expression of things.

Ancient Chinese philosophy called people's expression of necessity and nature "Tai Chi is divided into two instruments, in four directions, and plays eight trigrams". For example, if you want to express the existence of coordinates for each point on the earth, you must determine a central point, from which the three-dimensional cross coordinates of longitude, latitude, and altitude are derived. In this way, the entire ground and space have a clear quantitative coordinate name relative to the center.

But this quantitative name is only a little bit in relation to the center that people have set up! There are countless points in the air and on the ground, and the positioning center has changed, and the names of each point have all changed! Therefore, Lao Tzu said, "The beginning of all things without a name, the mother of all things, the name can be named, and the name is not very famous", there is no fixed center, as the mother, the name of the relative of all things, there is nothing to talk about.

Namelessness also exists in countless names, and our expression is just a derivative expression with an angle as the center. There is no such thing as an absolute all-encompassing expression.

Therefore, the correct name of Chinese philosophy should be "the logic of expression based on the relative structure of natural existence". In fact, he is the only logic of expression that is in harmony with the laws of nature.

Cosmic time has no beginning and no end, that is, time has no beginning and no end. Also, there is definitely an end of the world. Because, dialectics believes that everything in the universe has a process of occurrence, development and disappearance, and this is true of human beings, the earth, and the solar system.

Nature created a brilliant flower of life, and finally brutally killed it, this is the law of the universe, and no one can change it! A great man once said that when the end of mankind comes, the whole world will celebrate the victory of dialectics! From this point of view, the end of the world is also in line with dialectics, it is not subject to people's subjective will, and it cannot be resisted and prevented.

But when will the end of the world come? How will it come? No one can make it accurate at the moment, but it is certain that sooner or later it will be.

The theory of relativity explains the universe perfectly, and if we had an infinite magnification microscope to look inside any object in an infinitely short instant, we would see another universe. Looking at the two poles of the universe in which we are located, it is not difficult to understand that the universes in different dimensions correspond to the time of different time units, and that there are n universes in the same dimension in the same dimension. From this point of view, the universe that we know and understand may be an electron or neutron or photon or baryon or a small segment of a ray in the upper dimension of the universe.

It is correct for us to use the fairy tale thinking of "one day in the sky and one year underground" to look outward, inward, and in the same dimension as the universe without beginning and end. The time of light in different dimensional planes is not the same for that dimensional plane, that is, it is impossible for light and time in our current visible universe to enter another universe in different dimensions in equal parts, and can only be achieved by distortion (infinite lengthening or shortening), and because of another hard truth: with you and I in the current visual universe to the universe of another dimension inward, then time must be distorted into the corresponding time of the inward universe (which is the current time shortened by n times billions of square times, Our individuals should also be divided into n billions of squares, imagine what is the meaning for us to enter the nn universes in the next dimensional level in this way, but this method will never be possible, that is to say, we can only survive in the visual universe (we have not yet been able to reach the ability of another universe in the same dimension).

I hope my understanding will be helpful to you.

In a minimalist summary, time is the essential attribute of the universe, time + space + matter + energy is the universe, and entropy is the performance attribute of the universe, which is the disordered degree of space-time mass energy.

The Chinese translation of the name "entropy" is a paraphrase. In 1923, the German physicist Planck came to China to give lectures, and the Chinese physicist Hu Gang made a translation, suffering from the difficulty of translating the concept of "entropy" into Chinese. He uses "entropy" as the quotient of heat and temperature, and this concept is related to "fire", and he adds fire to "quotient" to form a new word "entropy".

In 1981, Riff King and Howard, famous contemporary American sociologists, published Entropy: A New World View, which started from the second law of thermodynamics, made a philosophical interpretation of the physical concept of entropy, and discussed many major issues in many fields such as politics, economics, education, and religion, which caused a shock in Western academic circles.

Entropy: A New Worldview

The thermodynamic concept of entropy reveals the irreversibility of heat transfer, i.e., heat always flows spontaneously from a high-temperature heat source to a low-temperature heat source, not the other way around. Starting from the second law of thermodynamics, this paper extends the concept of entropy to the fields of energy and environment, and expresses deep concern about the energy crisis and environmental pollution that are of general concern in the world today.

The dissipation of energy means an increase in entropy, and "an increase in entropy means a decrease in effective energy"....Although energy cannot be destroyed, it is dissipated in the process of transformation'Effective'or'The 'energy' of freedom becomes."'Invalid'or'Closed energy, we will be "punished" for this, and this punishment is an increase in entropy. Because "entropy is a unit of measurement of the sum of energies that can no longer be converted into work".

Entropy has a direct connection with energy, and entropy has no direct connection with time.

Entropy itself is a thermodynamic function of the system, which is linked to energy through the fundamental equations of thermodynamics.

The concept of "entropy" was first proposed in the field of thermodynamics, and is a physical quantity that expresses the degree of chaos in matter.

However, because the physical quantity "entropy" is not like the physical quantities of "temperature" and "pressure", which can be directly measured by existing technology, the concept of "entropy" is very abstract and cannot be intuitively understood.

So, what exactly is "entropy" and how to understand "entropy" in layman's terms?

Imagine a scene with a colony of small ants in a static, transparent, airtight container. From a distance, the group of ants as a whole is in a state of rest. But when we look closer, every ant is in constant motion.

When we slowly heat the container, the ants gradually increase their movement speed because of the heat, and each ant is dizzy and panicked, and the movement behavior becomes more and more chaotic. At this time, the ant colony is very chaotic, and it can be considered that the degree of confusion is very large.

On the contrary, as we cool the container, as the temperature decreases, the ants move more and more slowly, no longer dizzy and panicked, and the colony becomes less chaotic. When the temperature drops to a certain temperature, the ants will even be "frozen" in place and no longer move. At this time, it can be considered that the ant colony is "not a little chaotic".

The degree of chaos in this ant colony can be understood as "entropy";In other words, it can be measured by the concept of "entropy".

When the container is heated, the movement of the ants becomes more and more chaotic, and we can consider the "entropy" of the colony to increase;When the container is cooled, the movement of the ants becomes slower and slower, and the degree of chaos becomes less and less, and it can be considered that the "entropy" of the ant colony is getting smaller and smaller. When each ant is "frozen" in place, the colony can be considered to have zero "entropy".

Now, replace the ant colony with some kind of substance, gas, liquid, solid can do, and replace each ant with molecules, atoms of matter. The "entropy" of the ant colony becomes the thermodynamic "entropy".

When matter absorbs heat, its own molecules or atoms will be like small ants in an ant colony, the movement will become more and more violent, the degree of chaos will become higher and higher, and the "entropy" of matter will increase;When matter is exothermic, the slower the "little ants" (molecules or atoms) move and the chaos decreases, and the "entropy" of matter decreases. The temperature at which the "little ants" (molecules or atoms) of matter can freeze still is the famous "absolute zero", that is, a temperature point that exists only theoretically, below which the "entropy" of the substance is zero.

This is how "entropy" is understood colloquially. With the expansion of human cognition, it has been found that the concept of "entropy" can not only be used in thermodynamics, but also covers other fields, especially the proposal of information "entropy", which greatly expands the application scope of "entropy". In the future, the scope of "entropy" will be further expanded.

There is no clear evidence.

The idea that the entropy of the universe will get higher and higher is based on the second law of thermodynamics.

The second law of thermodynamics says that in a closed thermodynamic system, entropy always increases during any spontaneous process. When a stable equilibrium of the system is reached, it corresponds to the maximum value of entropy.

Entropy is a measure of how orderly a system is. The more ordered the system, the lower the corresponding entropy. The more disordered the system, the higher the corresponding entropy.

If we look at the universe as a closed thermodynamic system, when the universe is born, it is full of particles and atoms of matter that have just been formed, everything is in a state of chaos, and the entropy of the system is very high. When galaxies, stars, etc. are formed, the order increases, and the entropy of the system decreases. All subsequent processes (e.g., the birth, evolution and extinction of stars, the formation and disintegration of galaxies, etc.) are spontaneous processes, and with the extinction of stars, the collision of stars, the disintegration of galaxies and other structures, the degree of chaos of the system rises again, and the entropy of the system should increase.

When all the reactions in the universe have been carried out, the ordered structures such as stars and galaxies do not exist, there is no light and heat, and it becomes a dead world, and the universe, as a closed thermodynamic system, has reached its thermodynamic equilibrium state, which corresponds to the maximum value of entropy. This state is called the "heat death of the universe".

Cosmic heat death is only a theory of cosmic evolution, and there is no clear evidence yet.

Entropy, in physics, we can simply define entropy as a physical quantity that measures the degree of chaos in a system. Systems with low entropy have a high degree of order, while systems with high entropy have a low degree of order and appear more chaotic.

We know that the total energy of an isolated system remains the same (the law of conservation of energy).

However, we found that energy cannot be converted 100%, for example, the earliest trains used a steam engine to convert thermal energy into mechanical energy to propel the train. And in this process, there is always some heat energy that is lost and cannot be converted into the mechanical energy of the train. At first, people thought that this was due to insufficient technical level, but later found that no matter how advanced technology is, it cannot convert energy into 100%.

Therefore, physicists call the energy wasted in the energy conversion process, the energy that cannot be used, as entropy. This concept was later summarized as the "Second Law of Thermodynamics" or the "Law of Entropy Increase": that is, the total degree of chaos of an isolated system ("Entropy") does not decrease.

This law restricts the evolution direction of energy in nature, and has a huge impact on human production and life.

The law of entropy increase is macroscopically manifested as the tendency of the energy of matter to be converted into thermal energy, and the tendency of high-temperature objects to be converted into low-temperature objects, because temperature is the physical property of the irregular movement of molecules on the macroscopic level.

"Entropy" is just a physical term, but it makes people think deeply, and the law of entropy increase is a physical law that makes human beings despair!

From the law of entropy increase, we know that the entropy of an isolated system does not decrease, and with the transformation of energy, the total amount of entropy increases, and the energy we can use will become less and less. And we humans want to become more advanced and orderly, and we consume more and more energy, coal, oil, wind energy, water energy, and we will generate more and more entropy in the process of converting these energy into the energy we human needs. The more advanced and orderly our human society is, the more disorderly and chaotic the rest of the world will be.

We can't eliminate entropy and chaos, we just make some parts more orderly and move chaos to other places. When we don't have the external energy to keep ourselves in order, or we don't have enough to deal with the chaos caused by entropy, then order begins to crumble and the world goes into chaos.

If you compare the universe to an isolated system. In an ever-expanding universe, entropy is increasing and the available energy is decreasing. In the distant future, the available energy in the universe will gradually be depleted, leaving only a prosaic, lifeless world.

This is the ultimate game of the universe rules, and no one can change them.

In the long history of history, nothing has escaped the corrosion of entropy.