The human Guardian alliance immediately announced this news to the world. In the next 20 years, it will become the most important international organization in the world!

    "After serious consideration and discussion around the world, we decided to establish the alliance of guardians of all mankind on March 3 to deal with the crisis of the Death Star hitting the earth..."

    "We promise that we will try our best to carry out unconditional cooperation and cooperation in science and technology, materials and personnel to save ourselves and human civilization!"

    "We agree that individuals, groups and forces that hinder the construction of various Super projects by the human Guardian Alliance for various reasons will be subject to joint sanctions by all members..."

    This is an unprecedented Ordinance, which is a comprehensive cooperation of economy, science and technology. As soon as the news is released, it will shake the world!

    The Chinese people naturally applaud and celebrate one after another.

    "Congratulations!"

    "Finally established, quarreled for two months! If the quarrel goes on, the death god star will come to their door!"

    "I''m relieved to see that Du Xingyu is the international general consultant!"

    "Hurry up, or I have no motivation to do things every day. I always feel that the world is going to be destroyed!"

    ……

    Other countries, mainstream voices are also celebrating and praising, and the matter of national agreements has begun.

    Scientists from various countries began to exchange knowledge and technology. Some people say that mankind has reached unprecedented unity. Regardless of success or failure, this will be a great era!

    "We are witnessing history!" experts and scholars all over the world mobilized.

    For the first time, major international enterprises do not take profit as the goal, give up unnecessary competition and start project cooperation!

    With so many super projects to be built, Du Xingyu also lacks skills.

    Fortunately, experts all over the world are exchanging and discussing, and gathered top elites in various fields. It took more than half a month. The "Death Star crisis response plan" is finally going to be officially implemented.

    "The space elevator in the first part of the plan is the top priority and the prerequisite for the smooth implementation of other parts!" Du Xingyu and Chinese experts and scholars stayed in the video conference room, attended by elites from all over the world.

    "Without the space elevator, it is difficult for us to carry out the projects behind us. Using rockets and spacecraft to send materials and personnel into space is too expensive and inefficient!"

    "So we must build a space elevator in the shortest time!"

    Immediately, a physics expert said, "the slenderness ratio of the space elevator is very large, which may reach the order of 10000. If it is made into a compression structure, it will be crushed by its own weight. Therefore, we can only make a tensile structure and use the centrifugal force of the earth''s rotation to maintain its main structure."

    "In this way, the overall axis of the space elevator should point to the center of the earth. In order to keep the axis vertical and provide continuous tension for the elevator cable, the projection of the space elevator should be on the equator. We should first select the location of the space elevator ground station on the equator!"

    Everyone has no objection to this. Building a space elevator on the equator is the most scientific way.

    Immediately, another meteorological expert said: "the climate of the site selection area should meet the perennial wind force of less than two levels, no cumulonimbus clouds and other clouds that may produce thunderstorms, and be far away from various pressure zones and monsoon circulation."

    Geological experts suggested: "considering the cable fracture, the site selection area should avoid human aggregation areas or migrate local human aggregation areas. At the same time, the local crust should be in a stable state. The equatorial area east of the date line and west of the American continent is more suitable for site selection..."

    "I suggest building an artificial island near Zengmu dark sand at the southernmost tip of the southern waters of China." Huaxia experts suggested, "it is closest to the equator, the climate conditions are met, and we can reclaim land from the sea at the fastest speed!"

    "I think the southern tip of India is also good!" said an Indian expert.

    "You can also choose a site in the Pacific!" American experts suggested.

    Everyone knows that this space elevator will be an important space hub in the future, more important than the Strait of Malacca! Build in which country, which country will benefit from it!

    Moreover, the construction of the first space elevator undoubtedly determines the election of the supreme speaker of the human Guardian alliance two years later. Everyone wants this opportunity!

    Du Xingyu said: "I advocate building it in China. Other places can''t quickly build artificial islands in the Indian Ocean and the Pacific Ocean. Our time is urgent. In the southern waters of China, we can ensure that the construction of artificial islands and the ground station of space elevator can be completed as soon as possible!"

    As soon as he spoke, it was difficult for other representatives to find a reason to refute. What Du Xingyu said is a fact. If you want to finish it as soon as possible, you have to the China infrastructure team!

    On this matter, all parties have to consult with high-level leaders of various countries.

    Taking advantage of this time, Du Xingyu began to improve the simulation of space elevator on the science and technology simulator.

    "The main structure design of the space elevator is a ground station located at the equator."

    In Du Xingyu''s mind, a model of the ground station has appeared.

    "Then there is the cable made of special materials." above the ground station, pull up the cable of more than 36000 kilometers!

    "If you want to straighten the cable, you need a synchronous orbital station and a counterweight in high orbit on the earth''s synchronous orbit. Tiangong space station can be used as a synchronous orbital station, and the counterweight is a little troublesome."

    Du Xingyu thought that they could not waste resources to launch high-quality objects into high orbit as counterweights, so counterweights must have their role.

    "Directly use the near earth spaceport as the counterweight to kill two birds with one stone!" in Du Xingyu''s idea, mankind needs three spaceports, one near earth spaceport, one moon spaceport and one Mars spaceport.

    The near earth space port can be used as the high track weight of the space elevator, and the quality is completely sufficient!

    "In addition, the space elevator also needs a heavy lift car, which is a good design." Du Xingyu only needs to be responsible for overcoming the difficulties. It should be easy to hand over the design of the lift car to the experts of the human Guardian alliance.

    "Invest one million energy points to start the simulation of the ground station!" Du Xingyu consumes energy points. This recent major event has made him accumulate a lot of energy points. He doesn''t have to worry about not enough in a short time.

    In the simulation of the ground station, Du Xingyu got a lot of data sent by the Huaxia engineering team. They have rich experience in building artificial islands. By directly inputting these data, the progress of R & D has exceeded 50%.

    The remaining difficulty is how to fix the cable.

    "The area of the ground station should be at least 2000 square meters. As a transportation hub of the earth and space, it also needs to be equipped with the construction of seaports, airports and other facilities, which don''t need me to consider." Du Xingyu improved step by step.

    "To fix the cable and keep it vertical, we need to build a super tower on the ground station and use the tower as an anchor to fix the cable..."

    "Invest 100000 energy points to simulate the tower!" in Du Xingyu''s mind, a tower simulation appeared on the ground station.

    According to the calculation, its overall height is more than 15 kilometers. Once completed, it will be the tallest tower in the world! The tower includes the seabed part and the offshore part. In order to maintain stability, the seabed part can be appropriately increased. It is best to bury it when the artificial island is built, so as to reduce the erosion of seawater.