Moon mining

4. The moon does not belong to any country, anyone, you have the ability to mining, the whole moon to China's surface is no problem

5. First of all, solve the air problem on the moon, and create the air suitable for human survival, and do not spill. Solve the problem of weightlessness. Establish a base suitable for human existence

6. An old movie in the late 1990s, the key words are moon gem mining dormant robot

7. Of course, the semi major axis will change,
A = - GMM / 2E, m, m, e all change. Although the position of the moon will not change suddenly, the orbit will change (the orbit is an ellipse, not a circle)
the specific form of this formula is not important, but the concept that the orbit is an ellipse (including the special case of a perfect circle) should be known (the distance of the moon will change when it moves around the earth), The earth is at the focus of the ellipse
for example, the moon is at the far point (that is, the point far away from the earth where the intersection of the ellipse orbit and its major axis is), when the orbit changes, the far point can remain unchanged, only the distance from the near point to the earth changes, which is equivalent to the ellipse orbit being stretched (compressed), and the semi major axis will still change (but this is the content of senior two mathematics ^ ^ ^ ^ ^ ^ ^ ^)

8. China is studying this technology. It is said that mining one ton of coal on the moon to generate electricity can support China's electricity consumption for one year. Mining on the moon has no effect, just like mining on the earth. After mining for so long, it's still OK. In addition, our solar system is not absolutely balanced, but the small changes can be ignored temporarily. For example, the moon is actually moving away from the earth day by day, but the changes are very small, and there is almost no change for a period of time. Don't worry about it.

9. The composition and resources of the lunar body
4.5 billion years ago, the lunar surface was still a sea of liquid magma. Scientists believe that kriep, the mineral that makes up the moon, shows the chemical clues left by the magma ocean. Kreep is actually a combination of what scientists call "incompatible elements" - materials that cannot enter the crystal structure are left behind and float to the surface of the magma. For researchers, Kreep is a convenient clue to the volcanic history of the lunar crust, and to infer the frequency and time of comets or other celestial body impacts
the lunar crust is composed of a variety of major elements, including uranium, thorium, potassium, oxygen, silicon, magnesium, iron, titanium, calcium, aluminum and hydrogen. When bombarded by cosmic rays, each element emits specific gamma radiation. Some elements, such as uranium, thorium and potassium, are already radioactive in nature, so they can emit gamma rays by themselves. However, no matter what the cause of formation is, the gamma rays emitted by each element are not the same, and each element has unique spectral characteristics, which can be measured by spectrometer. Up to now, the abundance of lunar elements has not been measured. At present, the measurement of spacecraft is limited to a part of the lunar surface
the moon is rich in mineral resources. It is reported that the reserves of rare metals on the moon are more than those on the earth. There are three main types of rocks on the moon. The first is the lunar basalt rich in iron and titanium; The second is anorthosite, rich in potassium, rare earth and phosphorus, mainly distributed in the lunar highlands; The third type is mainly composed of 0.1-1 mm debris particles. Lunar rocks contain all the elements and about 60 kinds of minerals in the earth, six of which are not found in the earth
the moon is rich in mineral resources, and the most common 17 elements on the earth can be found everywhere on the moon. Taking iron as an example, the 5 cm thick sandy soil on the surface of the moon alone contains hundreds of millions of tons of iron, while the entire surface of the moon is 10 meters thick on average. The surface of the moon is not only rich in iron, but also easy to be mined and smelted. It is reported that iron on the moon is mainly iron oxide, as long as the oxygen and iron are separated; In addition, scientists have developed ways to make cement and glass from lunar soil and rock. The surface of the moon is also rich in aluminum
the lunar soil is also rich in helium-3.helium fusion using deuterium and helium-3 can be used as the energy source of nuclear power plants. This kind of fusion does not proce neutrons, is safe and pollution-free, and is easy to control. It can be used not only for ground-based nuclear power plants, but also for space navigation. It is reported that the content of helium 3 in lunar soil is estimated to be 715000 tons. For every ton of helium 3 extracted from lunar soil, 6300 tons of hydrogen, 70 tons of nitrogen and 1600 tons of carbon can be obtained. From the current analysis, e to the large amount of helium 3 on the moon, it is undoubtedly a timely help for the earth, which is short of energy in the future. Many space powers have taken obtaining helium-3 as one of the important goals of developing the moon
there are 22 major lunar seas on the surface of the moon. Except for the East China Sea, Mosco sea and Zhihai sea, which are located on the back side of the moon (the side facing the earth), the other 19 lunar seas are distributed on the front side of the moon (the side facing the earth). There are a lot of basalts in these moonseas. The volume of basalts filled in 22 moonseas is about 1010 km, and there are abundant titanium, iron and other resources in the moonseas basalts. If the content of ilmenite in Yuehai basalt is assumed to be 8%, or the content of titanium dioxide is 4.2%, the total resource of ilmenite in Yuehai basalt is about 1.3% × 1015～1.9 × Although this estimation is speculative and uncertain, it is certain that the abundant ilmenite in Yuehai basalt is one of the most important mineral resources for the development and utilization of the moon in the future
krippite is one of the three major rock types in the lunar highland, which is named because it is rich in potassium, rare earth elements and phosphorus. Kripkite is widely distributed on the moon. The krippite in the wind blown ocean area rich in thorium and uranium is covered by the late Yuehai basalt. The krippite is mixed and forms high foci and uranium materials, and its thickness is estimated to be 10-20 km. The total amount of rare earth elements in krippite in storm ocean area is about 22.5-45 billion tons. The rich thorium and thorium in kripp rock is also one of the important mineral resources for human to develop and utilize the moon resources in the future
in addition, the moon is rich in chromium, nickel, sodium, magnesium, silicon, copper and other metal mineral resources.

10. There is a movie called the moon
release date: July 17, 2009 (UK)