How can the temperature of the universe get lower and lower? This is not in accordance with conserva

The universe is expanding, that is, the volume of space is expanding, and energy is conserved, in other words, there is less and less energy per unit volume of space. So the temperature is getting lower and lower.

It will be lower and lower, which proves that the universe is expanding because: if you put some hot water in a basin, the basin is in a small box! (The small box is a little larger than the basin) The heat inside the small box gathers together (because the location is too small) If the box slowly gets bigger, then the heat disperses.

Because a hot gas is very small, you can't feel it. They're all scattered, so it's "cold" (it doesn't get cold, just because you don't feel it) Thank you!

The universe is now expanding, and the total energy is decreasing in a certain volume. Temperature is an indication of energy, so the temperature decreases. This does not violate the conservation of energy.

The universe is huge, and the luminosity of each star is just a speck of dust on the beach, so the temperature will get smaller and smaller!

Mass and energy are equivalent, e=mc 2, energy and mass can be converted into each other.

In the beginning, there was no matter in the universe, and matter was formed by the condensation of a large amount of energy.

And the space is still expanding......

Both of these contribute to a decrease in the temperature of the universe.

Let's take a look.

It's all said and done, depressed, but now the law of conservation of energy is now a little shaken, mainly because Joao Maguyo's faster-than-light theory was introduced, although it is not a big stream, but it involves the conservation of energy, but I believe that in our lifetime we will not see the conservation of energy being knocked down, otherwise I will be sad, how perfect nature is, I have to break it.

This is consistent with the conservation of mass and energy, and the lost energy is transformed into new galactic nebulae.

This is accompanied by the expansion of the universe.

If the universe starts to shrink, the temperature will rise.

Lanzhou baked cakes. It's all upstairs. I won't bother much.

There are two places in physics where you can't go beyond the thunder pool, one is the speed of light, and the other is absolute zero. Your idea crossed two thunder pools at the same time, which is not simple. But at the moment, your idea is not going to come true.

Assuming that your inference is correct, that time reversal can cause negative motion, then it is up to you to turn back time. Only the speed of light can turn back time, but according to the special theory of relativity, the mass of an object accelerating to the speed of light becomes infinite, and it is impossible to reach the speed of light, let alone the speed of light.

If you want to find a theory that can support your assumption, I'm afraid that the whole physics will have to be turned upside down.

The coldest object in the universe is the Dart Nebula, which has a temperature below -270. The Dart Nebula is formed by the gas ejected before the star dies. These gases are released at a very fast rate, reaching 165 kilometers per second, causing the temperature of the Dart Nebula to drop dramatically.

So how do you create negative motion? Could it be that it is a mysterious new dynamics that changes the microscopic primitive composition structure of matter?

According to the uncertainty principle, the more accurate the position of the atoms is, the less accurate the momentum of the atoms will be, if it reaches absolute zero, that is, all the atoms are at rest, then at this moment, the momentum of all atoms will become close to infinity, and they will also move at high speed in an instant, and once there is thermal motion, there will be a positive temperature (Kelvin).

And, what is negative motion?

There can never be a 0k substance.

Even if you try your best to get the matter to 0k

You have to observe it, only by the reflection of light.

Once a photon goes up. It gets energy. It's not 0k again.

0k should be an absolutely energyless state. You can't observe it either.

Then you can do your own research.

After all, the general opinion in the scientific community is different from yours now.

He can't reach absolute zero. The current view is this.

At the speed of light, mass is infinite. Time stops. This one. Hey, anyway, let's learn more things, don't think about these things now, go to university to specialize in research.

The average temperature of the universe is around zero (close to absolute zero), and the temperature is always low due to the lack of air in space and the fact that the planets are too far apart. We all know that the temperature of the universe is really low, and even the earth is the only one in the solar system that belongs to the state of constant temperature, but how did it come to be? This has to be studied from the environment of the universe, and space without air and lack of power will naturally be in an extremely low temperature.

1. There is no air in the universe, and there is no substance that can hold temperature, so it is always in a state of low temperature

Those who have learned about the vast universe know that space is a celestial body completely devoid of air, and there is no place to breathe except for all kinds of radiation; What does it mean to have no air? Meaning that space is a place where temperature cannot be preserved. The reason why the earth has heat is because the earth has the protection of the atmosphere, so that oxygen and temperature are stored inside, and the universe is not protected by the atmosphere, there is not even air, and the whole space only has cold elements, and the temperature will naturally be close to zero.

Second, the distance between the various planets is too great, and there is no natural heat generation without molecular interaction

Aren't there a lot of stars in the universe that emit heat? Why can't I conserve heat? It's because the distance between the planets is so great!

Even though stars can generate heat, this heat will lose its power after a long journey and eventually disappear into space. The heat molecules produced by the sun do swim to nearby planets, but the planets before the habitable zone have no atmosphere protection except for the earth, although they will absorb heat, they will also quickly disperse the heat, and finally only become a short-term carrier and cannot retain heat; In addition, the distance between the planets in space is too great to generate heat through friction, resulting in space being in a state of "as if stationary", and the temperature will naturally approach absolute zero.

For various reasons, the temperature in space is really low.

The temperature in the universe is close to absolute zero, which is also the mystery between the universes, and many times we do not understand these mysteries at all, and the universe is also an environment that is not suitable for human habitation.

Because the depths of the universe are basically infinitely close to the absence of energy, and the change of energy without energy will not lead to a change in temperature, so they can keep the temperature so low all the time.

Because the spacing between the molecules of matter in the universe is very large and does not produce violent motion collisions, then the heat generated by the movement of the molecules is very, very small, so the temperature is very low.

The universe actually does not have temperature, what is the concept of temperature, because we are in daily life, this is a concept of hot and cold, in thermodynamics, it represents the intensity of motion of the microscopic particles of matter, from the perspective of quantum field theory, temperature is related to the fluctuation of the vacuum, it determines that the virtual particles are too far away from the probability of generation. As the only energy source for the earth, the sun provides the necessary heat to all living things on the earth, and it can be said that without the sun, there would be no life on the earth.

But there is a question, why can the temperature of the sun reach the earth, but the space between the sun and the earth is a sub-zero temperature, which should start from the universe that has always been in a vacuum, there is very little medium that can conduct heat, you should know that although light has temperature, it can be carried out in a vacuum environment, but there is no medium that can maintain temperature, and there is no temperature landing site, so there is no way to maintain temperature, light can only carry heat to other places.

That's why the temperature in space has always been below zero, but the Earth is completely different. The earth has a large atmosphere, or other medium that may retain temperature, whether it is land or water, they can absorb part of the heat and fix it on the earth, so the earth will remain in a state of temperature, so all kinds of organisms can be born, and this is actually the difference between the earth and space.

But the other point is that the distance between the earth and the sun is just right, if it is too close, the earth will become a furnace and there will be no life, if it is too far away, when the sunlight reaches the earth, there will not be much heat, it will cause the earth to be in an extremely cold state, and there will be no living things, therefore, this is also because the earth can produce living things, so the planet is not far from the sun, according to the modern big ** theory, in the first Planck time of the birth of the universe, the smallest time unit is 5 10 44 seconds.

On the question of whether the universe itself also has temperature, it will be explained here today.

Because the universe is a substantial existence, then it itself has a temperature. The temperature of the universe should be extremely low. In the universe without sunlight, then the temperature is very low.

The universe itself also has temperature, because the universe exists in the vast world, it has many planets and galaxies, so it also has temperature.

No, because temperature is just a concept of hot and cold, so temperature only exists on Earth.