The temperature of the sun can be felt on the earth, but why is the average temperature of the unive

Updated on science 2024-04-27
17 answers
  1. Anonymous users2024-02-08

    The sun is the veritable "boss" of the solar system, it occupies nearly 99% of the mass of the entire solar system, which also means that in addition to the sun, all the material in the solar system including planets, comets, asteroids, etc. add up to less than one percent of the sun, and according to the survey, a sun is equivalent to 1.3 million earths.

    We often compare the sun to a "blazing" fireball, because the temperature of the sun is so high that it is enough to illuminate the entire earth despite being hundreds of millions of kilometers away.

    But in reality, there is no oxygen in space, and the sun is not burning, and the phenomenon of solar combustion that people see is actually the photothermal radiation produced by nuclear fusion inside the sun. <>

    The universe is very vast, and the stars in the universe are just small beings like dust compared to the universe, and the same is true for the sun, and the universe has been expanding since the big ** 13.8 billion years ago, and even the speed of light is not comparable to the speed of the universe's expansionTherefore, where the light does not reach, the space of the universe is still incomparably cold

    In addition, the temperature of the universe is mainly ** than the "initial temperature" of the universe and the temperature of the stars, the universe itself does not emit light and heat, and after the big **, the temperature of the universe gradually cools down, so in the corner where there are no stars, the temperature is already below zero.

  2. Anonymous users2024-02-07

    Because the universe is vast, the temperature in most areas is icy, only the solar system and its surroundings are warmer.

  3. Anonymous users2024-02-06

    Because there is a small amount of heat emitted by the sun gathered on the planet, and the universe is a large environment, that little bit of heat is too little.

  4. Anonymous users2024-02-05

    Because there is an atmosphere on the earth, which has a protective effect, the temperature can be felt on the earth.

  5. Anonymous users2024-02-04

    Because the universe is quite cold except for the solar system and the places around it, which are relatively hot.

  6. Anonymous users2024-02-03

    Because the sun is only a very dangerous individual in the universe, his heat is nothing.

  7. Anonymous users2024-02-02

    Other universes are beyond the reach of light, and where light cannot reach, the space of the universe is still extremely cold.

  8. Anonymous users2024-02-01

    Because even the sun is very small relative to the universe.

  9. Anonymous users2024-01-31

    The temperature is determined by the intensity of the thermal motion of the particles, so it is ubiquitous.

  10. Anonymous users2024-01-30

    Because only in the vicinity of the solar system are there temperatures.

  11. Anonymous users2024-01-29

    There are two kinds of solar heat felt on the earth, one is the temperature of the air heated by the Soliang sun; The other is the temperature under direct sunlight (radiation).

    On Earth, due to the presence of an atmosphere, sunlight heats the air first, and the infrared rays emitted by the ground when it is heated by solar radiation also heats the air, so the air temperature rises and is felt by the human body. In addition, when exposed to direct sunlight, solar radiation also brings heat to the human body, so you will also feel hot when you bask in the sun.

    In space, there is no atmosphere, it is a vacuum, so you can only feel the heat brought by solar radiation, and there is no temperature caused by the heating of the air. For example, when an artificial satellite or spacecraft (space station) is flying in space, the temperature on the sunny side can rise to 200, while on the side where the sun does not shine, the temperature will drop to below minus 200, which is very cold.

  12. Anonymous users2024-01-28

    The uniqueness of the earth is that because the earth is located at a distance from the sun, it can have a relatively stable amount of heat. Planets farther away from the Sun have very low temperatures.

  13. Anonymous users2024-01-27

    With regard to the phenomenon of photothermal effect, researchers so far have not been able to go beyond the framework of the theory of relativity.

    Which form of motion should be chosen between the "light particles" (light energy particles) and the "beam wave" (the wave motion of light energy)? The jury is still inconclusive, and the inconclusive nature does not affect the radiative motion of space light waves or particle waves. Until now, the speed of light is still considered to be the most teleported material in space.

    The movement of the sun's rays, as the basis for the exploration and discovery of all visible matter and energy by human beings on the earth, is looked up to and worshipped, and people are also frozen in the planetary system by the speed of light.

    According to the theory of relativity, space light sources are usually the first to react to a natural photothermal effect, such as the sun, and there are trillions of light and heat dual-source planets in space. The heat energy emitted by the dual-source celestial body is carried by light energy and radiates in all directions.

    In the confined space of the earth, we believe that the forms of heat conduction are radiation, convection, and medium conduction. Among them, whether thermal radiation can expel the speed of light to move independently has not been studied, but it can be clear that in the semi-open galaxy space, the movement of thermal radiation cannot expel the speed of light, and the thermal energy can only radiate with the light energy.

    In the process of radiating light and heat at the speed of light and energy in space, once it touches gas, liquid, solid and cotton, the heat energy will be transferred and consumed by the medium conduction, and become other forms of energy. After the light is blocked by the medium, it will identify the qualitative nature of the medium, and if it can pass through, it will penetrate through the past and continue to move, and when it cannot penetrate, the light energy will collapse and shrink and project the image of the medium to the next medium in the direction of movement, which is called the image effect of light energy.

    There are still a few problems that the theory of relativity does not explain:

    1. Is the initial reaction mode of the natural photothermal dual source in space consistent with the substance?

    2. What is the difference between a cold light source and a hot light source, is it because of the size of the moving space, or because the heat energy is conducted and absorbed by the transparent star material during the movement of the light?

    3. Can light energy be independent of heat energy due to convective movement that causes light to shrink and collapse? Is the mainstream energy of a dual-source star light or heat? Is there a relationship between the thermal energy of the planet and the energy of light?

    The finite nature of scientific theories depends on the infinite nature of philosophical speculation.

  14. Anonymous users2024-01-26

    This is because the energy of sunlight is converted into heat energy, and through the transfer of medium, there is a certain amount of heat loss in this process, but it will not lose too much, so it can make sunlight hot.

  15. Anonymous users2024-01-25

    Heat itself is the thermal motion of molecules, and molecules do not emit heat without thermal motion, which is why this happens.

  16. Anonymous users2024-01-24

    Because sunlight is a high-energy particle, this high-energy particle rubs against the earth and heats up its body temperature.

  17. Anonymous users2024-01-23

    Because under the sun's irradiation, the earth will have a suitable temperature, and there will be different changes, which will also heat the earth's surface.

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