Faced with everyone's concerns, Deputy Commander Frank just waved his hand lightly and said: "The theory and plan of interstellar immigration are not perfect, and there are still many details that need to be continuously strengthened. I think it is impossible to carry out actual construction work in the past two years. For this, don't be under ideological pressure, just do your best to do your responsibilities. Just tell me directly if you need any support!"

"We will definitely continue to work hard!"

"Um!"

Frank didn't say much. The researchers who were selected as the Crisis Research Team of the Interstellar Exploration Alliance are all scientists with extremely high scientific literacy and comprehensive abilities. Therefore, in this team, there is no need for supervision and encouragement, and everyone is very clear about what they want to do. As a team leader, Frank's most important responsibility is to solve the difficulties encountered in work for the team and every member and provide as many resources as possible.

"Your Excellency Commander." The person who spoke at this moment was Chinese researcher Li Yueqing, "I have another project here that needs to report to you."

"Please speak!" Frank looked over.

"If our research work goes well, perhaps in two to three years, the specific construction plan for the Space City or giant spacecraft will be finalized." Li Yueqing continued with a serious look on his face, "At that time, we need to make a choice, whether to build a Space City in space or on Earth."

"Yeah, this is a very realistic choice," Frank said. "First of all, we have to determine how big a mass every giant spacecraft, or every space city will have."

"It is true. If each space city can accommodate 300,000 people, its mass may be measured in billions of tons. Are we able to send such a huge guy to space?" Li Yueqing continued.

Obviously, everyone has considered this issue before. Instead of sending a giant into space, it is more feasible to make or assemble it in space.

"Tell me what you think?" Frank said with interest.

"First of all, in the planning stage, we must design the entire Space City or giant spacecraft into standard units of different models that are easy to disassemble and assembly, and are very strong. Just like Lego toys that children play with, of course, the actual assembly process will be much more complicated."

"The advantage of this is that we can spend less effort to turn these units into wholes in space. Moreover, when repairing and replacing Space City parts in the future, we can also operate according to the units."

"This idea is feasible, but it will bring a lot of trouble and challenges to the design project of Space City. Go and do it! I am still looking forward to seeing the space LEGO toys you designed." Frank expressed his approval with a smile.

"There is another question," Frank said, "We have to consider in advance how to send a large number of Lego components to space cost-effectively."

"You are right!" said Li Yueqing. "If you only use traditional rocket technology, although you can also send all the materials to space, it is really an extremely expensive and extravagant act."

"As early as the end of the last century, we developed carbon nanotubes, a light, tough and hard material. In the past period of time, we have basically learned and mastered the material science and technology of the Creator. I heard that this time, colleagues from the Institute of Materials Science have upgraded carbon nanotubes to carbon femtometers, and their toughness and strength have made a huge leap!" Li Yueqing continued to introduce.

"Well, I've heard of it, too." Another researcher, you, echoed. "According to the theoretical description of colleagues at the Institute of Materials Science, a carbon femto tube cable strap that is as thin as paper can support a weight of 30 tons."

"You guys want to build a space elevator." Frank understood what everyone was thinking when he heard the cable belt.

The essence of a space elevator is to build a permanent "cable" building that connects the ground to a point in the earth's orbit and allows the transport to travel along this cable (the power is on the transport, just like climbing up by yourself).

"Yes, commander!" Li Yueqing replied, "As we all know, the core technology of manufacturing space elevators lies in the cables of space elevators. You must know that a space elevator just weighs at least tens of thousands of tons, plus the counterweight, 100,000 tons is considered a conservative estimate. In the past, we have been unable to find materials suitable for strength as cables, but now we have made carbon femtometer tubes, and the strength can fully meet the needs of building space elevators."

(If an ordinary steel wire hangs from a height of 9 kilometers, it will be immediately broken by its own weight.)

"I believe that the earth's civilization has the corresponding science and technology to realize the Jacob's ladder described in the Bible Genesis. I support you in studying this plan, but I will reserve it." Frank also expressed his views.

"Although space elevators have a technical foundation and are theoretically feasible. However, I am worried that there will be many problems in actual construction and use. First of all, there is wind on the earth. Skyscrapers hundreds of meters high can sway around the edge of more than 10 meters under the action of wind. So for a cable (flat) exposed to the air for hundreds of kilometers, the wind force it has to withstand will even reach tens of thousands of tons. This force is likely to drag the space elevator out of orbit. Also, when the solar wind applies pressure to the space elevator, and the gravity from the moon and the sun will also make the space elevator sway. In addition, space elevators may also collide with artificial satellites or space garbage wrecks, which will greatly increase the danger of space elevators."

The above problems still need to be solved by more mature technologies. Imagine what a terrifying scene of a space elevator crashing from a high altitude.

Therefore, if a space elevator cannot operate safely and stably, the time and additional costs it consumes may not be more reliable and economical than traditional rocket launches.

"We will work hard to study and solve these problems," the researchers said.

"In addition to space elevators, we can also try to build an electromagnetic catapult track that is dozens or hundreds of kilometers long to transport these LEGO components in the Space City."

Another researcher came up with a new idea.

"This is also a feasible solution!" Frank expressed his affirmation, "It fires parts into space just like an electromagnetic railgun. But how to slow down parts will also become a problem."

"You are right. If we don't solve this problem, we will have a headache about how to catch these parts flying at high speed like shells in space."

"There are always more solutions than problems! It's time to show everyone's intelligence! Come on!"

Frank smiled and encouraged everyone.
Chapter completed!