After running in front of Lin Xiaobo, the robot hugged Lin Xiaobo's arm, looked at Lin Xiaobo with two big eyes, and said in a cute voice: "Master, Mengmeng misses the master so much." ”

This robot is Meng Meng, Lin Xiaobo rubbed the top of Meng Meng's smooth head, and said with a smile: "Okay, the master will chat with you more in the future." ”

In fact, although Meng Meng is in space, she is not alone, every day when Lin Xiaobo drives, Meng Meng will video and chat with Lin Xiaobo through the communication system on the car, and life is also enjoyable.

After laughing with Mengmeng for a while, Lin Xiaobo asked, "By the way, how is the moon base?" ”

As Meng Meng built a large number of spaceships and completely covered the earth, Meng Meng began to build spaceships to go to the moon according to Lin Xiaobo's instructions, and now five spaceships with a length of 100 meters have been assembled on the moon.

These spaceships look no different from other spaceships operating in space, but these five spaceships are very special, five are very high, and if the cute doppelgangers are combined, they weigh a total of 100 kilograms.

The reason why this is the case is also for a reason, although Meng Meng is lit out of a biological source stone, Lin Xiaobo can't appear next to Meng Meng at will, and it must be when the weight of Meng Meng's body or clone is more than fifty kilograms, so that Lin Xiaobo can appear near Meng Meng through space.

The reason why this is so is because only when the Meng Meng aggregate is more than fifty kilograms can a stable area be formed, which can be regarded as a small ethereal, and Lin Xiaobo can come.

Therefore, the places where Lin Xiaobo appeared in space were all Mengmeng spaceships, not other spaceships, and in those spaceships, Mengmeng's doppelgangers weighed about a few kilograms.

Hearing Lin Xiaobo's question, Meng Meng quickly replied: "Master, we have conducted a detailed reconnaissance of the moon and have found three places where we can build a base. ”

As Meng Meng spoke, Lin Xiaobo also had a three-dimensional moon in front of him, and around the moon, five spaceships circled around the moon, and on the map, the trajectory of the spacecraft was clearly visible.

And on the moon, there are also three flashing points, which are the three places where Meng Meng said that you can build a base.

On the three-dimensional map, there are also detailed parameters of the moon, which is the result of Mengmeng's work during this time.

The Moon: 3,478 kilometers in diameter, about a quarter of the Earth's gravity, and its surface gravity is about 1/6 of the Earth's.

The crater covers almost the entire lunar surface. The largest crater is the Bailey crater near Antarctica, with a diameter of 295 kilometers, which is a little larger than Hainan Island. The small crater may even be a pothole of a few tens of centimeters. There are about 33,000 of them with a diameter of not less than 1,000 meters. It occupies 7%-10% of the surface area of the moon.

The dark part of the moon that humans on the moon can see with the naked eye is actually a vast plain on the moon's surface, which is called the moon sea.

Where there is a sea there are mountains, and on the moon, the highest peak is 9,840 meters. There are six peaks above 6,000 meters on the moon, 20 from 5,000 to 6,000 meters, 80 from 3,000 to 5,000 meters, and 200 peaks above 1 meter.

The Moon is rich in minerals, and there are more reserves of rare metals on the Moon than on Earth.

There are three main types of rocks on the moon, the first is the lunar sea basalt, which is rich in iron and titanium; the second is rich in potassium, rare earths and phosphorus, etc.; The third type is mainly breccia composed of 0.1~1 mm cuttings of rock chips.

Moon rocks contain all the elements of the earth and about 60 kinds of minerals, of which 6 minerals are not found on the earth.

The moon is extremely rich in mineral resources, and the 17 most common elements on the earth abound on the moon. Taking iron as an example, the 5 centimeters of sand on the surface of the moon alone contains hundreds of millions of tons of iron, while the entire lunar surface has an average of 10 meters of sand.

Iron on the surface of the moon is not only abundant, but also easy to mine and smelt. The iron on the Moon is mainly iron oxide, as long as oxygen and iron are separated.

The amount of helium-3 in lunar soil is estimated at 715,000 tons. For every tonne of helium-3 extracted from lunar soil, 6,300 tonnes of hydrogen, 70 tonnes of nitrogen and 1,600 tonnes of carbon are obtained.

All of this has made mankind have an extraordinary enthusiasm for the moon, but the reason why Lin Xiaobo wants to establish a base on the moon is just out of curiosity.

For Lin Xiaobo, as long as he guards the space, he can get unlimited energy, and with energy, Lin Xiaobo can synthesize any material he knows through nanorobots, so the resources on the moon are exactly not what Lin Xiaobo wants.

From the three locations that Meng Meng found, he randomly found one as a place to place the ethereal, and then, I saw five spaceships begin to assemble towards that place.

Seeing that it would take a while, Lin Xiaobo said to Mengmeng: "Let's go, let's do our own things first." ”

Meng Meng immediately replied, "Yes, master." ”

After a while, I saw that in the empty space, an oval object more than ten meters long suddenly appeared, and at the moment when the oval object appeared, the space seemed to be like water, swinging a circle of ripples, and then it was vaguely found that there was a huge figure in the empty space.

But this figure was only a flash, and when the oval object appeared, the shadow was hidden again, and it was the Mengmeng spacecraft, which was about 500 meters long and larger than an aircraft carrier.

The current length of the Mengmeng spacecraft is only more than 500 meters, not that it does not want to become larger, but the materials obtained on the earth are not enough to support a longer spacecraft to operate in space, and 500 meters is made of materials on the earth, which is the most flexible and defensive spacecraft.

Although nanobots can synthesize any material, they must also have the specific composition and molecular structure of that material.

In this oval-shaped flying machine, there are two passengers, it is Lin Xiaobo and Meng Meng.

When the aircraft came out, its surface was a flicker, and then the aircraft disappeared, no, maybe it couldn't disappear, if you looked closely, you could also find the distorted ripples in the void, it was the aircraft that activated the simulated environment device.

If it is stationary, the aircraft can not only stealth from the radar, but also visually stealth the figure.

Of course, as the speed increases, this stealth effect will also become worse.

Lin Xiaobo, who was sitting in the aircraft chapter, ordered: "Let's go." ”

Meng Meng next to her immediately answered: "Yes." ”

Then, with a faint sound, a slender flame erupted from around the aircraft, and after that, the aircraft with adjusted attitude first glided along the earth for a while, and then plunged headlong into the earth as if it had found its target