Why do stars shine Why do stars shine?

The stars themselves do not shine and heat, but they are reflected by the sun's rays, and people on the earth look as if they can shine.

The netizens on the first floor are not all right, the stars are still stars, and the stars convert mass into energy, that is, light and heat, through nuclear fusion according to Einstein's mass-energy equation e=mc.

This is a capability and a prerequisite that a star must have.

The stars you can see with the naked eye, except for a few in the solar system, are generally stars, which can shine just like the sun.

The combustion reaction in the sun is a nuclear reaction in a physical reaction, not a chemical reaction, a chemical reaction is that the molecules are separable and the atoms are inseparable, while the nuclear physical reaction is that even the atoms are broken. Hydrogen in the star In a high-temperature and high-pressure environment, four hydrogen atoms undergo a series of nuclear fusion reactions to form a helium nucleus. Nuclear fusion has mass converted into energy.

Even combustion in a chemical reaction does not necessarily require oxygen. The conditions for combustion are: combustibles, combustibles (not oxygen), and the temperature reaches the ignition point.

In addition to oxygen (O2), there are fluorine gas (F2), chlorine (Cl2), ozone (O3), etc., and compounds such as hydrogen peroxide (H2O2), nitrogen tetroxide (N2O4), oxygen difluoride (O2), nitric acid (Hno3), etc. In addition, when it reacts with extremely reactive substances such as sodium and potassium, nitrogen (N2) and carbon dioxide (CO2) can also support combustion.

The reason why stars shine is because of the nuclear reactions that take place inside them. Inside the star, at high temperatures and pressures, hydrogen nuclei fuse to form helium nuclei and release a large amount of energy at the same time. This energy radiates outward in the form of light, forming the brightness and color of the Constant Revelation Rolling Star that we see.

The brightness and color of a star depend on its mass and age. Larger and younger stars tend to be brighter and may be more blue-leaning in color, as they have more vigorous nuclear reactions inside them. Smaller and older stars, on the other hand, are usually fainter and may be more reddish in color because the nuclear reactions inside them have weakened.

All in all, stars glow because of the nuclear reactions inside them, and the energy released radiates outward in the form of light.

The reason for the glow of the stars is due to the process under special conditions such as high temperature and high pressure produced by the nuclear Biqi shed reaction. Inside the star, due to the ultra-high temperature state, the hydrogen nuclei undergo nuclear fusion, that is, several hydrogen nuclei will fuse into a helium nucleus, releasing a large amount of energy and bright light at the same time. That's why stars are able to shine light continuously.

In addition, stars emit different colors of light, depending on the temperature of the star's surface. The higher the surface temperature, the smaller the radius, the longer and shorter the radiated light waves, and the more blue-white the star. Conversely, the lower the temperature, the larger the radius, and the longer the wavelength of the light radiated, the redder the star.

In short, the reason for the light of stars is due to the physical processes under special conditions such as high temperature and high pressure generated by nuclear reactions, and the color emitted by stars is also related to their surface temperature.

Stars can only whiten the hair of young people, but not the hearts of young people. Have you ever read such a short but rich poem? This type of poem is called a "little poem".

After the May Fourth Movement, it was popular for a while. Among the many "small poems", the most eye-catching are Bingxin's "Stars" and "Spring Water". The Stars and Spring Water were written by Bingxin under the influence of the Indian poet Rabindranath Tagore's Birds, which, in her own words, is a collection of "fragmentary thoughts" in one collection.

Broadly speaking, they include three main aspects. The first is a celebration of maternal love and innocence. Bingxin, the first famous female writer in the history of modern Chinese literature, is known for promoting the "philosophy of love" as soon as she entered the literary world.

And maternal love is the fundamental starting point of the "philosophy of love". She believes that maternal love is the source of all things and the fundamental driving force that pushes the world towards light. In "Stars" and "Spring Water", she regards maternal love as the noblest and most beautiful thing, and praises it repeatedly:

Mother! The storm in heaven came, and the bird hid in its nest; The storm in my heart is coming, and I only hide in your arms. The poet uses vivid metaphors to convey the love of motherhood, and writes with sincerity and touching.

This kind of ode to maternal love occupies a considerable proportion in "Stars" and "Spring Water". It can be said that it is the affectionate praise of maternal love that lays the deep and delicate emotional tone of these two works. Closely related to the celebration of mother's love is the cherishing of innocence, childlike fun, childlike innocence and all new things

Thousands of angels will rise up and sing praises to the little ones; Child! In his tiny body was a great soul. In the eyes of the poet, the world full of innocence and childlike fun is the most beautiful world in the world.

The second is the worship and praise of nature. In Bingxin's view, human beings come from nature and return to nature, and man and nature should be in harmony: we are all babies of nature, lying in the cradle of the universe.

Bingxin also combines maternal love, innocence, and nature: Creator Jujube If there is only one promise of bliss in eternal life, I sincerely pray: "I am in my mother's arms, my mother is in a boat, and my boat is in the moonlit sea."

This poem perfectly integrates the praise of maternal love, the call for innocence, and the aria of nature, creating a world of perfection and beauty, with sincere and deep feelings, fresh and elegant language, giving people endless aftertaste and enlightenment, and is the most beautiful of Bingxin's poems.