We know that the main components of the sun are hydrogen and helium, and the source of solar heat comes from the nuclear fusion of hydrogen. We've always thought that the sun is constantly burning hydrogen, but that's a problem. Scientists have also done experiments on burning hydrogen, which is light blue when it burns, but the sun is red.
Why is there such a contrast? In fact, in essence, the sun is not "burning" hydrogen, because what humans call "burning" is completely different from the nuclear fusion of the sun. Combustion on Earth requires oxygen, while the sun has no oxygen. Inside the Sun is a nuclear fusion reaction, a physical change that does not require oxygen to participate.
Nuclear fusion is constantly taking place inside the Sun, and hydrogen atoms are converted into helium atoms through fusion reactions. In the process of fusion, a huge amount of energy is released externally. And this energy is transmitted to the space of the universe through electromagnetic waves, which is the sunlight we feel on Earth. But the biggest problem is that the color of the sun is actually not the red we see!
Scientists believe that the Sun is actually a blue-green star. This is determined by the color of the main wavelength of the Sun. The surface temperature of the sun is 5800 degrees Celsius, and the outward wavelength color is about 500 nanometers, showing a blue-green color. But when the human eye looks from the earth, it cannot see the original blue-green face of the sun. Even when viewed from Earth, the sun has more than one color.
The sun rises every morning and takes on an orange-red color. By noon when the sun is empty, the sun is yellowish-white. In the evening, the sun turns orange-red again. Humans will always believe what they see with the naked eye, but what they see with their own eyes is not necessarily real.
What do you think?