Why can you see the sun shining white during the day?

The sunlight is white.

The yellow sun we see is not the color of the sun itself, but the sun that is filtered through the atmosphere. Sunlight is not a single color of light, but a combination of all the wavelengths of light it emits. And the combination of these rays is white light, so white is the purest color of the sun.

To be precise, the sun is white - from the ISS.

Or the true color seen on the moon. The yellow, orange or red sun that we see on Earth is not the color of the sun itself, but the sun that is filtered through the atmosphere.

Sunlight: Sunlight, broadly defined, is electromagnetic radiation from all spectrum of the sun.

On Earth, sunlight is evident when the sun is on the horizon.

Solar radiation is filtered through the Earth's atmosphere to the Earth's surface.

is called daylight.

When solar radiation is not obscured by clouds, it is often referred to as sunlight when it is directly illuminated and is a combination of bright light and radiant heat. WMO.

The definition of "sunshine hours" refers to the irradiance of sunlight directly received by an area at more than 120 watts per square meter.

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.

Long white does not necessarily shine in the sun, and the town is openAs the saying goes, a white covers a hundred ugliness, now both boys and girls are going farther and farther on the road of whitening, what whitening**, grape seed capsules, amide acid shower gel, etc., all are paged, girls don't want to go out if they don't paint their faces white, for fear that they will be laughed at by others.

We Asians are originally yellow**, and it is every girl's dream to let **white glow, and most of the white glow is unhealthy Yan Yu's color guess this, and it may also be better to use foundation.

Nowadays, people live under great pressure, and many people are in a sub-healthy physical state, **dull, spotted after sun, because of staying up late and chaotic diet acne, many problems are not sunscreen, compressing**, drinking lemon water can be easily solved, abandon those unhealthy methods.

The sunlight looks white, but it is actually not completely white for the following reasons:

1.Sunlight is a combination of light rays with a range of wavelengths that covers the visible band, giving the human eye a white light effect. However, the intensity of light at each wavelength is different, and the distribution is uneven.

2.The sun is a high-temperature and high-density plasma, and plasma of different temperatures and densities emits different wavelengths of light. Blue and violet light are stronger, and yellow and red light are weaker, so the overall light is white.

3.The atmosphere absorbs and scatters some of the red and blue rays in the sun's rays, making the incident sunlight on the surface relatively lacking red and blue light, increasing the relative intensity of the other bands of light, bringing it closer to white light.

4.The visual system of the human eye subjectively perceives a mixture of light with a wide range of wavelengths as white light. When the peaks of the spectral distribution are wide and numerous, they are more likely to be perceived as white light.

The reason why sunlight can be perceived as white light by the human eye is the result of a combination of factors:

1.Sunlight encompasses all visible light bands that the human eye can perceive and covers a wide area.

2.Although the intensity and distribution of light at each wavelength are uneven, the difference is not exaggerated, and it is difficult for the human eye to distinguish between them, and the overall judgment is white light.

3.Atmospheric absorption and scattering further adjust the spectral distribution of sunlight and weaken the wavelength judgment ability of the human eye.

4.The human eye subjectively judges that the light within a certain range is white light, which is also the subjective color drawing effect of vision.

Therefore, the reason why sunlight is regarded as white light is the effect of the superposition of various objective and subjective factors. It is necessary to conduct a comprehensive analysis from the aspects of the physical properties of light, the atmospheric effect and the visual mechanism of the human eye. This requires us to understand the relationship between different influencing factors on the basis of learning relevant knowledge, and summarize the ideas and methods for judging the composition and presentation effect of color and light.

The surface temperature of the sun is about 6000, so it stands to reason that the sun should be a yellow star, so why does the sun we see during the day glow a dazzling white? Actually, it's because the sun is so close to us. If you have the opportunity to take a spaceship to a place farther away from the sun, you will find that the sun will be a yellow star.

The reason why the beautiful morning glow and sunset bloom red light is because the earth's atmosphere has the largest declination angle of red light among the seven colors of sunlight.