Why does the sun shine 20 and why does the sun shine

Our sun is formed after a large amount of hydrogen gas mass has gathered. After accumulation, a huge gravitational force is generated to cause the hydrogen outside the hydrogen mass to continuously collapse to the inside, and the gravitational potential energy generates a large amount of heat during the collapse process, and the higher the temperature is the closer to the center. When the temperature reaches a temperature that can trigger nuclear fusion between hydrogen atoms, our sun is born.

The fusion of hydrogen nuclei to form helium atoms requires the loss of mass, and this mass is emitted in the form of energy, which is the photon. As a result, our sun is constantly decreasing in mass, but it is insignificant in relation to the mass of the sun itself.

Due to the extremely high temperature of the sun's core, the nuclear reaction of hydrogen fusion into helium is constantly carried out, releasing a large amount of heat energy and photon rays. So the sun we see is a glowing body.

In fact, the principle of the reaction inside the sun is the same as that of the hydrogen bomb. Our solar energy produces two phases of nuclear fusion, the first stage of hydrogen fusion into helium and the second stage of helium fusion into carbon.

The temperature of the sun is extremely high and the pressure is extremely high, so that the thermonuclear reaction from hydrogen fusion to helium can take place, thus releasing a great amount of energy, which is carrying out a thermonuclear reaction all the time to produce a large amount of energy, about one part of the 2.2 billion energy radiates to the earth, which is the main light and heat of human beings.

Nuclear fusion takes place inside the sun, turning hydrogen atoms into helium atoms, and nuclear fusion requires high temperatures, and when it burns, it glows and heats.

The sun is a burning fireball, so shine brightly.

At the end of the 19th century, Marie Curie's major discoveries in the field of radioactivity brought humanity into contact with the tremendous energy of atomic energy, and it was then that mankind realized that the sun shone through the fission of the nuclear material inside.

Every object is a luminous body, some are visible and some are invisible, so there is no sun for why it should shine.

The sun is like a street lamp. It is the beacon of the universe. If the sun does not shine. The universe is pitch black. Do we still have the courage to explore?

The sun is a star, and stars shine, and no one upstairs said...

If the sun didn't shine, humans wouldn't exist, and no one would ask this question.

Does fire glow? Such a simple question is still asked.

The sun is mainly composed of hydrogen, broadland and helium, and the temperature and pressure inside it are very high. Under such conditions, a nuclear fusion reaction will be formed inside the sun, that is, 4 hydrogen nuclei will be fused into 1 helium nucleus, and in the process, Chaqing will lose a part of the mass, which will be converted into energy and released, including light energy.

Therefore, the reason why the sun shines is the nuclear fusion reaction inside the sun.

There are many convertible hydrogen atoms inside the sun, which fuse into helium atoms, and during the fusion process, a lot of energy is released and volatilized through various activities of the sun. (In simple terms, nuclear fusion changes).

I've also seen it because the particles in the sun are very fast.

In the interior of the sun, four hydrogen atoms fuse and shrink into a helium atom, releasing a huge amount of energy, which is light and heat.

The sun uses nuclear fusion to generate light, and when two very light nuclei meet at high temperatures (such as helium and hydrogen), they synthesize new nuclei and release enormous amounts of energy.

Because it's going on nuclear fusion all the time.

This is an important question that people have been exploring. However, due to the limitations of scientific and technological research methods, although various speculations about solar energy have been put forward one after another, there is always no sufficient scientific basis. About a hundred years ago, scientists in Germany and England proposed that molecules in the sun would collapse toward the center under the influence of gravity, based on the laws of conservation of energy and transformation.

During the collapse process, the kinetic energy of the molecule becomes heat. So the sun maintains its extremely high temperature, radiating light and heat.

Since the thirties of this century, with the deepening of the study of the structure of atomic nuclei, people have gradually realized that when very light nuclei are very close together at extremely high temperatures, they will fuse, form new nuclei, and release huge energy. This provides a new theory for explaining the enormous energy of the sun.

American physicist Bate extended the theory of fusion to the sun. He believes that at temperatures of up to 20 million degrees inside the sun, hydrogen atoms fuse into helium atoms, and at the same time release enormous amounts of energy. The solar energy release calculated from these fusions is in good agreement with the observed values.

The sun is a red-hot gas planet that shines on its own. The temperature on its surface is about 6,000 degrees Celsius, and the core temperature is as high as 15 million degrees Celsius. The radius of the Sun is about 696,000 kilometers, which is about 109 times the radius of the Earth.

Its mass is tons, which is about 332,000 times that of the Earth. The average density of the Sun is grams per cubic centimeter, which is about 1 4 of the density of the Earth. The average distance between the Sun and our Earth is about 100 million kilometers.

The structure of the sun is mainly divided from the inside to the outside: the center is the thermonuclear reaction zone, the core is the radiation layer, the radiation layer is the troposphere, and the troposphere is the solar atmosphere outside the troposphere.

According to the theory of nuclear physics, the center of the sun is a thermonuclear reaction zone. The central region of the Sun occupies 1 4 of the entire radius of the Sun and is more than half of the mass of the entire Sun. This indicates that the density of matter in the central region of the Sun is very high.

Up to 160 grams per cubic centimeter. Under the attraction of the sun's own strong gravity, the central region of the sun is in a state of high density, high temperature and high pressure. It is the birthplace of the sun's immense energy.

The energy generated in the central region of the Sun is mainly transmitted in the form of radiation. Beyond the central region of the sun is the radiant layer, which extends from the radius of the sun at the top of the thermonuclear center to the radius of the sun, where the temperature, density, and pressure decrease from the inside out. In terms of volume, the radiant layer accounts for the vast majority of the total volume of the Sun.

Through thermonuclear fusion, the Sun emits light by burning a large amount of hydrogen concentrated at its core, which consumes an average of 600 per second

10,000 tons of hydrogen. After another 5 billion years of burning like this, the Sun will deplete its hydrogen reserves, and then the nuclear region will shrink and the nuclear reaction will expand to the outside, when its temperature can be as high as 1

more than 100 million degrees, leading to the occurrence of helium fusion.

At the end of the 19th century, Marie Curie's major discoveries in the field of radioactivity brought humanity into contact with the tremendous energy of atomic energy, and it was then that mankind realized that the sun shone through the fission of the nuclear material inside.