Chapter 436

The moon has no water and no oxygen. Because the mass of the moon is too small, the gravity produced is not enough to form an atmosphere. So, there is a vacuum on the moon. Therefore, we can only create a suitable living environment for the earth people within the closed buildings.

Planet migration, water and oxygen are indispensable.

Perhaps, it seems a feasible way to transfer the earth's water resources to the moon. As for how to transfer water, in addition to the space shuttle, the construction of "space ladder" seems to be a good choice.

The concept of "space ladder" was put forward in 1970. In 1999, the advanced office of NASA Marshall center published the article "space ladder: advanced infrastructure in space", marking that the space ladder will move from fantasy to reality! Dr. Brad Edwards of the Fairmont Institute of science, who is well-known for the study of the ladder, wrote in his paper: "the ladder can make human history leap forward."

Once the "space ladder" is completed, it can carry out transportation work day and night, send tourists and goods into space, and greatly reduce transportation costs. Today, rocket launch or space shuttle transportation costs about $20000 per kilogram of payload, while space ladder transportation costs only $10 per kilogram, which can promote the leap forward development of space technology.

The structure of space ladder mainly includes base, cable belt and elevator cabin.

The base can be selected on the equator, so the distance from the geosynchronous orbit is the shortest. The elevator cabin is not difficult. The most difficult thing is the cable strap, because if the cable strap wants to hold the capsule, it will bear the strongest tension. If the cable strap cannot bear it, it will break. Therefore, the material of cable strap is the biggest obstacle to the development of space elevator. And the most promising material is carbon nanotubes, because carbon nanotubes can withstand the tension to meet the standard of carrying space elevator.

This "carbon nanotube" is nothing but graphene! According to the number of graphene sheets, it can be divided into single-walled carbon nanotubes and multi walled carbon nanotubes.

Because graphene has been developed by Henry ahead of time, and the manufacturing technology of graphene is still the latest technology in 2015. Therefore, the manufacturing and development of graphene has greatly accelerated the development of current science and technology.

In previous generations, the United States and Japan were most dedicated to the study of space ladders. In addition to NASA, the famous Google company is also doing this research! As for Japan, they even invested 7.3 billion US dollars to develop their own space elevator technology, hoping to take the lead in this field. In fact, it's not hard to imagine that whoever built the first space elevator would almost win the ticket to colonial outer space. If you are ambitious, you will not miss this opportunity! Little Japan is ambitious, but its land is only palm sized. Of course, it wants to colonize other places!

However, the space ladder is not so easy to build. Even with the strength of the super materials company, there is no hope in a short time. The biggest difficulty is that the current nanotechnology is not advanced enough to produce suitable carbon nanotubes from graphene!

However, Henry is not in a hurry. Take your time. Building space ladders on earth may not be successful in 20 or 30 years! But on the moon, it's much easier. The gravity of the moon is very small, and the tension on the cable of the space ladder is also very small. It may be more than ten years before the lunar space ladder can be successfully built.

In fact, you don't have to rush to make a space ladder. At present, the earth is extremely short of water resources, and there are many places that can't even use water. If Henry transferred the earth's fresh water to the moon, there would be even less fresh water on the earth. Therefore, Henry's first problem to solve is the shortage of water resources on earth!

Huining, Gansu Province, China. It is said that people here only take three baths in their life. When they were born, married and died, the water shortage was very serious.

The shortage of water resources is like a witch's claw, holding the throat of many countries. And with the increase of population and industrial water, water resources will only be more and more tense! According to the analysis of scientists, the future output value of water resources may reach hundreds of billions of dollars!

At present, the ocean area on the earth accounts for 70.8% of the total surface area, and the average depth of the ocean is about 3800m. Therefore, in addition to the direct use of fresh water resources, there is no doubt that the best way to obtain fresh water resources is desalination. In addition, the air also contains a lot of water, the other is sewage purification.

If we can invent the "water making artifact", then both revenue and international influence will increase dramatically!

Think of the oil-rich Middle East, where fresh water is scarce and even more precious than oil due to its desert location and large population. They are willing to trade a bucket of water for a bucket of oil!

If there was a "water making artifact", perhaps at that time, Henry would consider buying a large area of land in Africa to carry out "African development" and create an independent kingdom!

……

Henry has British times water company, which is mainly engaged in sewage purification. But "it's hard to make bricks without straw", many countries even don't have sewage! Times water can't help it either. But Henry found a way. People have to eat and drink Lhasa, right? Isn't the sewage in the toilet sewage?

Henry thought of the past life when Bill Gates and some non-profit organizations developed a device to convert toilet sewage into drinking water. Is this kind of device awesome? In the video, Henry also saw Bill Gates fill a glass of water, then take a drink, then nod his head, give a thumbs up and say, "Oh, it's delicious!"

Although the sewage of toilet is dirty, is the sewage of sewer or river clean? After industrial sewage is discharged into the river, it is not only dirty, but also highly toxic. However, after being treated by sewage technology, it is just as good to drink!

It's just that Africans like to defecate casually and pay no attention to hygiene at all. The promotion of toilet sewage purification devices also requires the construction of a large number of toilet public infrastructure. It's a huge investment. It's not very cost-effective. Therefore, this device can only be promoted on a small scale in Africa. But even so, it can solve a lot of drinking water problems.

Since the toilet sewage purification device can not be popularized temporarily, the air water making device is undoubtedly a good choice. In a previous life, an Italian designer felt that it was inconvenient for African residents to drink water and decided to find a cheap and feasible solution to help people in these areas. After two years of deliberation, he designed a water tower called Warka, which is about 9 meters high and looks like a vase shaped water tower from a distance. It can provide 114 liters of safe drinking water for remote villages every day.

Warka water tower has the advantages of simple technology, low cost (US $500) and large amount of water. Its structure mainly includes the shell and the inner plastic mesh. The shell can be made of bamboo and plays a fixed role; Inside, nylon and polypropylene "mesh" is used to collect water droplets formed on the surface. When the air condenses, the water drops will roll into the container at the bottom of the tower. The water collected in the container is then piped to thousands of households.

The Warka water tower is so easy to make that it can be finished with bamboo and plastic. It's a kind of shoddy.

Henry felt that if he wanted to develop the water tower, he could make improvements on this basis, so that the water tower could collect more water. At that time, the "water making artifact" will be a blessing for the water shortage areas all over the world!

Of course, no matter how powerful the water artifact is, the moisture content of the air is limited. The city has a large population and a large amount of industrial water consumption, so the water tower alone is far from enough.

Only desalination can provide water on a large scale!

Sewage purification can be carried out by Thames Water Company, while "air water tower" has not yet been studied by a large company. Henry can only recruit people to develop it by himself. There are many desalination companies in the world, so according to Henry's nature, it's natural to buy several desalination companies directly.