Does the sun shine Please, everyone, thank you

The sun is a star, and the star is a planet that can emit light and heat itself, and of course the sun shines and heats. According to the observations and analysis of scientists, it is known that the sun is a huge fireball made up of hydrogen atoms and helium atoms. There are some doubts about this point of invention freak:

Scientists have analyzed the presence of hydrogen and helium on the sun from the sun's light. But sunlight comes from the surface of the sun, and the sun is so big, can we really see through its ingredients? Is it possible that it is only the surface of the sun or that only a certain depth is hydrogen and helium?

And what's the other way around? Or is the core of the sun containing the primordial matter of the universe? Why are scientists so sure that it must be hydrogen and helium?

This is something that the inventive maniac is very skeptical of its authenticity. Because we don't know exactly what is in the core of the earth where we live. Not to mention the distant sun?

This is a digression, written here for your reference. The reason why the solar energy emits light and heat is because of the strong thermonuclear reactions that take place inside it. A thermonuclear reaction is a reaction in which a light nucleus is fused into a heavier nucleus at extremely high temperatures and a large amount of energy is released.

The thermonuclear reaction of the sun is the fusion of 4 hydrogen atoms into a helium atom, in which the mass is reduced (about a small half) and becomes energy, which in turn radiates to its surroundings in the form of light and heat. That's how light and heat come from on our planet. The light and heat of the sun on our planet is only one in two billion.

According to theoretical estimates, the conversion of hydrogen nuclei into helium nuclei to achieve uninterrupted thermonuclear reactions, requires a high temperature of more than 50 million degrees or even hundreds of millions of degrees, and the artificial thermonuclear reaction that has been realized is the first of hydrogen bombs, which uses uranium (235U) or plutonium (239Pu) to produce high temperatures at the moment of fission to make hydrogen fusion into helium nuclei possible. This is how the ** of the hydrogen bomb in our country was detonated. As you can already tell from the above statement, the sun is constantly emitting light and heat, and its mass is constantly decreasing, but this is a very slow process, according to scientists estimate that it has been about 5 billion years since the sun was first created.

And it will take at least 5 billion years for the sun to burn out completely, and the sun will not disappear in your lifetime. Remember, when you wake up tomorrow morning, you'll be sure to see the sun.

The sun shines because it produces excess energy during the fusion of hydrogen into helium, which is eventually released in the form of light and heat, which is the real reason why the sun shines.

The Sun is a giant nuclear fusion reactor (nuclear fusion is a nuclear reaction in which two lighter nuclei combine to form a heavier nucleus and a very light nucleus or particle. In this process, the nuclear fusion reaction converts the mass of some of the reactants into energy), and the artificial sun mimics the sun's nuclear fusion principle to provide humans with an inexhaustible source of energy.

In terms of technical classification, artificial suns belong to controlled nuclear fusion, and the energy output process of nuclear fusion is artificially controlled to ensure that the energy output meets the dynamic demand for energy of human beings.

The quantum effect helps the sun burn slowly, which is the secret of the sun's longevity.

The Sun is large, not only in size, but also accounts for 99% of the total mass of the solar system. However, the solar energy burns for so long, not because it ***. Conversely, the greater the mass, the greater the stellar gravitational pull, the more intense the star burns, and the faster the hydrogen depletion inside the star.

As a result, massive stars have very short lifespans, and some of these short-lived stars have a lifespan of less than a million years. However, the mass of the sun is not great in the universe. Scientists estimate that the sun will live for about 10 billion years.

It is estimated that some stars with very small masses can live up to 1 trillion years.

The amazing energy emitted by the sun actually comes from the inside of the nucleus. The sun is extremely rich in hydrogen, and under the high temperature (15 million degrees Celsius) and high pressure conditions in the center of the sun, these hydrogen nuclei interact with each other to form helium nuclei, and at the same time release a large amount of light and heat.

The sun is made of gas, from the surface to the center. Of these, the most abundant are light gases such as hydrogen and nitrogen. Of course, that's not to say that metals like iron and copper aren't out there.

But the surface temperature of the sun is 6,000 degrees Celsius, and the core temperature is even higher, up to about 15 million degrees Celsius.

The landlord will definitely ask, since the sun is a gas ball, why doesn't it escape into the universe in all directions? This is because the mass of the sun is too large, and it itself has a strong gravitational pull that pulls the gas that is about to escape. It's like the gravitational pull of the Earth, which holds the atmosphere around it tightly without losing it.

The sun is a red-hot gas planet that shines on its own. It has a surface temperature of about 6,000 and a core temperature of up to 15 million. 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 Sun is an ordinary star in the Milky Way, located on the spiral arm of Orion north of the galactic plane, about light-years away from the galactic center, and it orbits the galactic center at a speed of 250 kilometers per second, and it takes about 100 million years to complete one revolution. The Sun is also rotating, and its cycle is about 25 days in the equatorial zone of the Sun; The polar region is about 35 days.

Through the analysis of the solar spectrum, it is known that the chemical composition of the sun is almost the same as that of the earth, but the proportions are different. The most abundant element on the sun is hydrogen, followed by helium, but also carbon, nitrogen, oxygen, and various metals.

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.

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.

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.