The possibility of human settlement on the moon

It is impossible, because it can't meet the living conditions of human beings. The moon is a satellite orbiting the earth. It is the earth's solid-state satellite and the closest celestial body (with an average distance of 384,000 kilometers). It is about 4.6 billion years old. Like the earth, the moon has a layered structure such as shell, mantle and core. The moon itself does not shine, but reflects sunlight. Because there is no atmosphere on the moon, the heat capacity and thermal conductivity of lunar materials are very low, so the temperature difference between day and night on the surface of the moon is very large. The moon always faces us, which is customarily called the front. On the other hand, except for the area near the edge of the moon, which is visible in the middle due to Libra movement, most areas on the back of the moon are invisible from the earth. In the era without detectors, the back of the moon has always been an unknown world. A major feature of the back of the moon is that there are almost no dark lunar surface features such as the moon and the sea. When the artificial probe runs to the back of the moon, it will not be able to communicate directly with the earth. The moon is the most thoroughly studied celestial body. So far, the second celestial body visited in person is the moon. Early moon experts said that the moon's magnetic field was weak or no magnetic field at all, while samples of moon rocks showed that they were magnetized by a strong magnetic field. This is another shock for NASA scientists. Because they always assume that the moon rocks are not magnetic. These scientists later discovered that the moon used to have a magnetic field, but now it doesn't. In the study of rocks brought back from the moon by American Apollo astronauts, scientists found that the magnetic field around the moon is less than11000 of the earth's magnetic field, and there is almost no magnetic field on the moon. However, research shows that the moon once had a magnetic field and then disappeared. The magnetic field of the moon ranges from 50-10 billion years after its birth to 360-39 billion years. However, when it appeared 600-900 million years later, the magnetic field suddenly disappeared. The earth's magnetic field originates from the earth's core. Scientists believe that the earth's core is divided into an inner core and an outer core. The inner core is solid and the outer core is liquid. Its viscosity coefficient is very small, and it can flow quickly, producing induced current, thus producing magnetic field. In other words, the magnetic fields of all planets are generated by induced currents. According to the analysis of rocks on the surface of the moon, there is no core on the moon that can produce induced current. On the contrary, all the evidence shows that the surface of the moon is a dissolved shell, an "ocean" formed by flowing lava fluid, and later it became what it is today due to cooling. At first, almost all astronomers thought that man had discovered the ocean on the moon. In fact, the dark part of the moon is formed by the cooling of lava. So where does the magnetic field come from? A physics expert group led by Professor Dreckmann from the Department of Earth Planetary Science of the University of California, USA, conducted a three-dimensional simulation experiment on this subject. After the experiment, they finally came to a conclusion. According to the team, light and flowing rocks form an "ocean" of lava, and when they drift to the surface of the moon from below, a large number of heavy radioactive elements such as thorium and uranium remain under its surface. When these elements collapse, they release a lot of heat, which heats the inner core of the moon like an electric blanket. The heated material forms convection with the surface of the moon, resulting in induced current. At this time, the lunar magnetic field is also produced. But when the radioactive elements collapse beyond a certain point, the convection phenomenon stops and the induced current disappears. It is because of this change that the magnetic field of the moon finally disappeared.