The Earth s core is hotter than the surface of the Sun, so why hasn t the Earth s ground melted?

Although the temperature of the Earth's core is high, it is not the same as the environment of the Sun. The Earth's core is surrounded by layers of rocks, making it difficult for heat to conduct out, and the sun is surrounded by an almost vacuum cosmic environment. In addition, there is a certain reason for this and the thermal material composition of the earth's core.

Because of the presence of the sun, the earth can feel the heat of sunlight every day. If the distance between the earth and the sun is too close, it may be damaged by the sun's radiation like Venus, and it is precisely because the earth is at a moderate distance from the sun that it can not only get the right light and accept the heat.

The sun can bring temperature to the earth, and the earth itself can also be heated, because the earth is full of magma, and although we can't reach the depths of the earth's core, we know from natural phenomena such as volcanic eruptions and hot springs that the temperature under us is very high.

But the reason why we can't do this is that some people may think that it has something to do with the earth's crust, so we need to look at the composition of the earth's crust for the first time. Below our surface is the earth's crust, below the earth's crust is the mantle, below is the core, that is, in this place, there is semi-flowing and semi-solidified magma, their temperature can reach up to 6000, higher than the temperature of the sun's surface, relative to this heat, the earth's thin crustal depth of 17 kilometers can not prevent such a high heat, when we touch the land with our hands, we can't feel a little heat, let alone warm our entire earth space, So naturally it has nothing to do with the earth's crust!

The real reason behind this actually depends on physics, just like the propagation of force is mutual, the heat under the earth is indeed emitting to the outside of the earth, but in this process, there will be many obstacles, such as underground rock layers, underground volcanoes and other materials, they will block the dissipation of the earth's heat, and even give the geothermal heat an opposite force, so that the heat of the earth's core cannot spread above the surface.

It just so happens that this heat has reached a state of equilibrium, and the volume and mass of the earth also play a key role, the sun passes the earth a little bigger or smaller, will destroy this balance, the depth of the earth's crust is just right, so that these high temperatures do not spread to the surface of the earth, and the heat propagation of the sun is different, there is no shelter between the sun and the earth except the atmosphere.

Therefore, although the temperature in the Earth's core is high, it does not have any effect on the surface. But the distant sun has become the hope of human survival.

Because the temperature is absorbed by other substances in the process of propagation, most of the internal temperature of the earth has been absorbed by the mantle layer, and the density of the earth's crust layer is low, and the heat dissipation is also fast, so the temperature has been dissipated to the surface.

Because the Earth's surface is the result of decreasing cooling, the inference used to be that the temperature of the rock layer close to it was the acceptable range of the rock layer, and so on to know how big the difference between the core temperature and the surface temperature is (a certain temperature range only exchanges energy with its adjacent places, and there is not much left to the surface). You can also ask a question here to illustrate the problem, geothermal energy did not exterminate humanity is reasonable, and the perfect interpretation of existence is reasonable.

According to scientists, the temperature of the Earth's core is reasonably estimated to be 4000 6000, while the surface of the Sun is about 5500 degrees Celsius, and the temperature of the Sun's core is as high as 20 million degrees Celsius, so the temperature of the Earth's core is higher than that of the Sun.

The temperature of the Earth's core ranges from 2,300 to 50,000 from the outer core to the inner core, which is not as good as the 20 million temperature in the center of the Sun and 5,000 on the surface of the Sun.

The temperature of the Earth's core is more than 6,000 degrees, which is really insignificant compared to the sun. The temperature of the sun can dissolve anything, but the core of the earth cannot melt the earth's crust.

According to scientists' calculations, the temperature of the earth's core is 4000 6800, the temperature in the depths of the earth's core is above 6000 degrees Celsius, and the temperature of the sun's surface is about 5500 degrees Celsius, which can be said to be about the same as the temperature of the sun's surface.

The surface temperature of the sun is about 6,000 degrees, while the temperature at the core of the earth is about 6,880 degrees, which is higher than the surface temperature of the solar photosphere.

Above 4000 6800.

The temperature range of the outer core increases from about 4000 near the outer mantle to 6100 near the core, while the temperature of the inner core increases from 6300 at the junction to 6800 at the center of the Earth.

The heat in the Earth's interior is mainly divided into three parts, namely the residual heat of the Earth's formation, the tidal frictional heating between the Earth and other celestial bodies such as the Sun, the Moon, and other planets, and the heat generated by the decay of radioactive elements.

The temperature of the Earth's interior rises with depth. According to recent estimates, the temperature is 1300 °C at a depth of 100 km, 2000 °C at 300 km, about 4000 °C at the boundary between the mantle and outer core liquid spheres, and 5500 6000 °C at the center of the Earth.

The Earth's core, located in the innermost part of the Earth. The temperature is very high, there are 7000 .

The earth is composed of the core, mantle and crust, the core is the core of the earth, located in the center of the earth, its temperature can be as high as 6000Celsius, which is higher than the temperature on the surface of the sun, some people have to ask, why such a high temperature has not reached the surface?

The temperature of the Earth's core inside the Earth is above 4,000 degrees Celsius.

The temperature inside the Earth's core is about 5000°C or more.

The Earth's core is the core of the Earth, and the closer it is to the Earth's core, the warmer it gets, with the Earth's core being between 4000 and 6800°C all year round. The temperature of the inner core increases from 6300°C at the junction of the outer inner core to 6800°C at the center of the Earth. The Earth's core can be simply understood as the core of the Earth, located at the very center of the Earth.

The mass of the earth is heavy, and the total mass of the earth's core accounts for the mass of the earth. The temperature of the outer core of the earth's core is different from that of the inner core. Among them, the temperature range of the outer core increases from 4000°C near the outer side of the mantle to 6100 °C near the inner core, and the temperature of the inner core increases from 6300 at the junction to 6800 at the center of the Earth.

The heat of the Earth's core comes from **

1. The primordial heat left over from the formation of the earth.

About 4.5 billion years ago, shortly after the formation of the Sun, clouds of dust and gas orbiting the Sun collided and gravitationally grew larger and larger, eventually forming the Earth. Due to the constant impact of microplanets, the primordial Earth was constantly heated, leaving it in a molten state. Billions of years have passed, and the Earth's surface has long since cooled, but the core is still very hot.

2. Radioactive heat released by the decay of radioactive elements located in the earth's crust and mantle.

The earth itself also generates heat. There are many radioactive elements in the earth's interior, such as uranium and thorium, which will produce heat when they undergo radioactive decay. Without this radioactive decay process, there would be fewer volcanoes and ** on Earth.

Although the earth has been dissipating heat outward, the temperature of the earth has stabilized due to the fact that the heat generated by the rocks itself is almost the same as the heat loss.

The above content refers to Encyclopedia - Earth's Core Temperature.

We live on the earth, and everyone knows that the earth has been formed for 4.5 billion years, but the temperature of the earth is still very high, mainly because the pressure of the environment we live in is very high, and the melting point is relatively high. As a result, the surface temperature can be maintained, but it does not have much impact on the structure of the earth itself.

Many people may think that the earth has existed for many years, so the temperature of the earth should not be so high, but the temperature inside the earth is still very high, mainly because the earth is surrounded by various planets. And there will be a certain amount of pressure inside the earth, so the high temperature of the earth will be maintained, so the interior of the earth itself has a certain pressure, but it will not have much impact on the structure of the earth itself, because the earth itself also needs to operate, so the interior of the earth will not produce nuclear fusion, so the earth will not produce such heat, only because the earth itself has a certain pressure, so the temperature of the earth's core will be particularly high.

If you're interested in related issues, you can also look up some information on the Internet yourself, and the heat generated when the earth forms and grows, and this heat does not disappear, and friction generates heat. If you are interested in related issues, you can also query some information on the Internet at this time, because there is more information that can be seen by everyone.

I think the world is very interesting, and human beings have been exploring the whole universe, if you are interested in the earth, you can also go to the Internet to check the relevant information. Because we live on the earth, we have to know the earth, and we have to know ourselves.

Because the temperature of the earth is relatively high, the earth needs to operate, and the internal of the earth will produce nuclear fusion, which will also produce a lot of heat, so it will lead to a high temperature.

Because of the pressure, there is no nuclear fusion in the earth's interior, so it can only maintain high temperatures by pressure.

Because nuclear fission is always going on inside the earth, chemical reactions are happening all the time.

The Earth's core is at the very center of the Earth. High density, the temperature is very high, about 4000 6000 , even higher than the surface temperature of the sun.

The Earth's core is generally thought to have been formed by the impact of an alien object in the early days of the Earth, and it is divided into an inner core and an outer core. The outer core is molten because humans cannot directly observe the Earth's core (humans have not even broken through the crust yet), and the existence of a liquid iron outer core is also needed to speculate from iron meteorites originating from the cores of other planets, as well as the theory of Earth's generators. As for the inner core, because the pressure is extremely high, the melting point of iron is also very high, so it is inclined that the inner core is solid iron.

There are two main reasons for maintaining the high temperature of the earth's core, one is that the internal pressure intensifies the movement and collision of atoms to produce energy, and the other is that a large number of radioactive elements in the earth's interior decay and release energy.

From the time the Earth first enlarged and developed its core, most of the Earth's original heat was retained. The amount of heat generated through the simple process of accretion that brought small celestial bodies together to form the primordial Earth: about 18,000 degrees Fahrenheit (1 degree Fahrenheit).

We derive a preliminary estimate of the temperature of the deep Earth from the melting behavior of iron at ultra-high pressure. The speed at which sound travels through the Earth's core (measured from the speed at which a wave passes through the core) and the density of the core are very similar to the density of iron at high pressures and temperatures measured in a laboratory. Iron is the only element that closely matches the properties of the Earth's core, and is also abundant enough in the universe to make up about 35% of the mass of the planets in the Earth's core.

The Earth's core is divided into two separate regions: the liquid outer core and the solid core, and the transition between the two is located at a depth of 5,156 km. Therefore, if we can measure the melting temperature of iron at extreme pressures at the boundary between the inner and outer cores, then this laboratory temperature should reasonably be close to the true temperature of this liquid-solid interface.

It is now thought that the earth is constantly cooling, but there is currently no means of continuous monitoring. However, according to the second law of thermodynamics, the entire universe will run out of all energy and enter a state of maximum entropy, uniformity, darkness, and close to absolute zero.

Because the entire structure of the earth has the ability to keep warm, and the inner box can also continuously provide energy, the nuclear temperature is still very high.

Because the earth's energy is endless, it produces energy through constant movement, and these energies do not decrease with time.

This is because the radiation of the nucleus is very large, and the energy of the nucleus is very strong, so the temperature is very high.

It is because the crustal organization has been constantly moving, and these movements have caused the temperature of the earth's core to be **, so the temperature of the earth's core is still very high.