We all know that the source of all the heat on Earth today comes from the sun, and the sun is also the planet with the closest heat to our planet. In 18 years, the United States launched a sun detector Parker. The Parker is also the closest man-made product to the sun, only 6.2 million kilometers from the sun's surface. At 6.2 million kilometers, it seems that it is far from the sun, but if you have the heart to check the relevant information, you will find that the distance has actually reached the sun's sundial. And the temperature of this distance has exceeded 1 million degrees Celsius!

So what is the concept of this 1 million degrees Celsius? On Earth, the highest melting point known to humans is “Four Carbon Tetrahydride” (Ta4HfC5), which has a melting point of 4215 °C. In contrast, 1 million degrees Celsius seems to be instantaneous. This human cognition has the highest melting point of the material, and there is no residue left.
However, the fact is that the Parker detector is under the corona layer. Although the temperature measured by the instrument is 1 million degrees Celsius, its true self-sensing temperature is only 1300 ° C, which is far from the melting point of the highest melting point substance known to man. far. So why is there such a physical phenomenon that violates human intuition?

Let's let Xiaobian give you a popular science. First of all, we can start from the essence of temperature. In high school physics, we should know that the so-called temperature is actually the average kinetic energy of a large number of microscopic particles, and the somatosensory temperature is the degree of heat and cold that our human body can feel. There is also a big difference between the two temperatures.
In our daily life, the somatosensory temperature and the instrument's measured temperature are the same. However, when it is in outer space, it is completely inapplicable. When the instrument is measured, it is 1000 °C, but the human body temperature is only This is the case at 10 °C. Then why is this happening? In physics, temperature represents the average kinetic energy of a microscopic particle, and this can only represent its "average" energy. There is no way to represent the total energy. This leads to an excessive kinetic energy of a single particle if it is too large. Then it will cause its temperature to become higher, and if the number of particles is less, then the body temperature will also decrease.

If the above complicated theory guides you are not very understandable, Xiaobian will give you an example. In the sauna, if it is dry steaming, the temperature in the room can reach 80 °C. If you compare it with water that is boiled to 80 °C, the temperature between the two is the same, but the person is at 80 °C. The sauna does not burn, but the 80 ° C water can burn you 100%. This is because the total energy contained in a pot of boiling water will be greater, and the total energy of the water in the dry steaming sauna will be much smaller.

On the earth, the temperature of the hot layer in the range of 100 to 1000 km from the surface can exceed 1000 ° C, but due to the thinness of the air in this interval, the particles contained are very small, so the human body stays in this position is not at all I will feel how hot it is. Many reports on the outer planet have temperature descriptions of related stars. In these descriptions, a single star is tens of millions, and the temperature of hundreds of millions of people, but the body feels the temperature is far less than the temperature. So horrible.