When the weather is hot, the appearance of cold air can be a good way to lower the temperature. And if you want to drink hot water, you just need to put cold water on the stove, heat it to make the temperature rise, and the cold water boils in the pot and becomes hot water. There are many ways we can turn hot into cold and cold into hot.
However, after hundreds of millions of years of changes on the earth, the flame in my heart has not been extinguishedThe earth is always in high temperatures, and we who live on the surface of the earth cannot feel the raging fire beneath the earth's crustThe temperature under the earth's crust far exceeds that of the sun, and it continues to be exported.
The structure of the earth
Born out of the solar system, the Earth is the most special of all living beings, and it begins to change over time. Substances of different densities begin to separate, resulting in a new qualitative change. We can see from the model that the Earth is a round solid that has undergone volcanic eruptions and **, and through rock analysis, we understand that the Earth has many layers, each with its own role, and the layers are complementary to each other.
The earth's crust, also known as the surface, is the terrestrial environment in which we live, and the surface of the earth is more tolerant, but it is also fragile. Human life is on the surface of the earth, and building houses, planting, and mining resources all start from the earth's crustThe "defense system" of the earth's crust was severely damaged, leading to the occurrence of **, tsunamis, and sandstorms.
The earth is like a matryoshka doll, layer by layer. The second layer is called the mantle, which is a combination of two brothers, the upper mantle and the lower mantleThe rocks of the upper mantle are very hard, and the rocks of the lower mantle are fluid, which can also be called asthenosphere. There is also the presence of the lithosphere between the upper mantle and the crust.
The third layer comes to the Earth's core, which is also the "heart" of the EarthThe Earth's core is also divided into the inner core and the outer core, and the Earth's core is the best part of the Earth's heatIt's constantly dissipating heat from the inside out. The outer core is a liquid state composed of iron and nickel, and the temperature is very high, and the high temperature of the outer core will also be exported to the inner core. If the outer core is a sweltering desert, then the inner core is magma in the middle of a volcano. Before the thermometer reaches the core, it has already begun to burstThe average temperature of the core is maintained at 6500If you get close to the core of the earth, the heat will immediately turn you into a ** jerky. Unexpectedly, the core at high temperatures is solid.
People feel the temperature of solar radiation on the earth's crust, and they can't imagine how much heat the earth's core isHumans are also curious about how the temperature of the Earth's core is generatedAnd why can the high temperature not recede?
Heat in the center of the earth**
After the universe was large, the solar system and other galaxies were formed. In the solar system,The earth uses gravity to gather dust and unidentified matter in the universeThen a collapse occurs, and various substances are forcibly fused together. In the process of fusion, the earth absorbs the energy of the sun, and after the formation of the planet, a huge amount of energy is hidden in the earth.
The Earth is a multi-layered structure, each with a different density, and energy is stored in the core of the Earth, which has the highest density of space. This energy is slowly converted into heat in the earth's core, so the core becomes a hiding place for heat, which slowly settles. Of course, the heat will slowly dissipate over time, but it will take a difficult time to reach the top of the earth's crust and dissipate. There is still a large amount of solar heat in the Earth's core, and dissipation is a long process.
Every star stores heat before it forms, and a star needs a lot of heat when it undergoes core fusionThe more heat is stored, the greater the mass of the star。By looking at Jupiter and Earth, it can be found that Jupiter has more heat than Earth, so it is 6 times hotter than Earth, and its mass is naturally greater than that of Earth.
In addition to the gravitational absorption of the sun's heat by the Earth's formation, it can also have heat through radioactive decayRadioactive decay is a process of releasing heat. Most of the high temperatures in the Earth's core also come from radioactive decay. The battery is formed into a nuclear battery by radioactive decay, and nuclear batteries are used in rockets and spacecraft, which is to use the temperature difference to generate electrical energy to obtain energy, or the particles that carry electricity themselves can also generate electrical energy.
The reason why the Earth's core is so hot is because of the primordial heat and radioactive decay.
How long can the heat of the Earth's core last
Over time, the original heat on Earth has begun to dissipateBut with the increase of radioactive materials, the earth's core is still in a state of high temperatureThe earth is like a thermal container, even if the cold water in the cup is poured out, as long as the hot water is filled, the whole cup will be hot, and the higher the water temperature, the hotter the cup will be.
Radioactive materials are generally hidden in the depths of the earthWhen matter decays naturally, heat is generated. Raw heat can be cooled quickly, but the heat of radioactive material cools down slowly, so it is able to retain heat for a long time. It is now possible to find out the raw materials of radioactive materials by means of measurement calculations, and as long as you know how many raw materials are still present on the earth, you can calculate the time for which the heat is held.
Researchers use sensors to test the earth's substances, and when the material comes into contact with the sensors, it produces sparks, and in this way, it is possible to know how much radioactive material is present on the earth. Speculate through computational models, the heat generated by radioactive decay can remain in the Earth's core for billions of years. If radioactive material on Earth no longer appears, it will only need to be slowly cooled by the heat in the core.
The earth will slowly cool this heat at a constant temperature, and it is estimated that it will take a long time for the core of the earth to run out of heat. I wonder if humanity will wait until the day when the Earth's core cools. At present, there is no technology for humans to directly survey the Earth's coreOnly by meteorites brought back from other stars can be studied and speculated.
The heat of the earth's core has a protective effect on the earth, and the high temperature of the earth's core cannot produce a geomagnetic magnetic field, which can protect the earth from the radiation of the universe and the sun, and the magnetic field establishes a good life circle for human beings to live in. Without the protection of the magnetic field, the earth would be eroded by the solar wind, and there would be no life on the earth.
Summary
Once the temperature of the earth's core is lowered, it is fatal to humans, animals, and living beings. After the earth's core is cooled, the earth will be swallowed by the universe, and human beings will disappear from this world. Now human beings are still looking for a new home, and in hundreds of millions of years, human beings will face the problem of the destruction of the earth, and at that time, it is not known whether human beings have moved away from the earth, gone to a new planet, and started a new life.