Homo sapiens

Chapter 400 Spectacle +2
And the other side.

On the northern plateau of the Mada District.

Here is the highest peak in Madagascar - Mount Marumukutlu, which is 2876 meters high.

However, part of this mountain peak was flattened at this time, and a tall building was built in the flattened area.

The entire tall building almost wraps the mountain peak, and the building height on its surface is 1000 meters. At this time, the altitude of Marumukutlu Mountain has reached 3622 meters.

This is where Homo sapiens' another space city, Madagascar Space City, is located.

With the help of Homo sapiens' underground projects here, a large group of underground bases was quickly built.

As mentioned before, the technical route of Madagascar Space City is a mass projector, and there is no problem in terms of electromagnetic acceleration.

The real problem that plagues the mass projector is that the exit acceleration is too fast, and after hitting the dense atmosphere, frictional heat, shock waves, derived infrasonic waves, and sudden impact reaction force are generated.

Although the Homo sapiens company has developed special rocket engines, special satellites and special instruments that can withstand high loads in the previous Longerang cannon project.

As for the airship hose, it was not created by Homo sapiens. There is a similar project in Maple Leaf Country, but the project is still in the conception stage and has not attracted much investment.

Su Changli turned his head to look at another young man: "Baisha, what stage have you reached?"

However, Nibhara's security is not high, and it is very close to Tianzhu and the Far East, and there is not enough strategic hinterland, so it is not suitable for this kind of project.

This is also the reason why the Egyptian Space City can engage in pull projects.

Since the orbital tube has a radius of 50 meters, the atmospheric pressure it needs to withstand is very high, especially in the lower atmosphere.

Originally, Nibhara was more suitable for this project, after all, there are mountains with a height of more than 8000 meters there.

The Marumukutlu Mountain tower has two main functions, one is to lay electromagnetic guide rails, and the other is to resist the pressure of the bottom atmosphere, including the tower track and the underground circular track, all need to maintain a sub-vacuum.

This mass catapult named Project Dandelion finally began to enter a state of full acceleration.

Disposable sealing film, this technology is not difficult, because America has a rotary cannon project using a large centrifuge, which also uses this method.

"Then how do you plan to solve the material problem?" Su Changli asked with a headache.

"As for the hose outlet of the ring-shaped airship, we will use a special disposable film so that the spacecraft can directly crash through."

He said to everyone present with satisfaction: "Everyone, I have learned about the progress of various departments. I am announcing the official launch of the Dandelion Project. I hope everyone will continue to work hard."

The pipeline between the airship and the tower is a soft pipeline design. The requirements for this thing are very high, it must be very light, and it must have sufficient compressive strength.

Baisha is confident about this: "Although carbon nanotubes cannot be used, modified hard spider silk plus high-strength steel wire can replace carbon nanotubes, at least tens of kilometers in length."

However, the energy utilization rate of the Longerand cannon is actually not high. You must know that its propellant is submetallic hydrogen, and its power is more than ten times that of TNT.

The high tower and the underground ring track are hard pipe designs.

"What about the progress of the hose?"

Su Changli asked another question: "Has the carbon nanotube laboratory not yet produced any results?"

"Don't worry, the role of the steel wire in the cable is actually to enhance its upper tensile limit, and the weight is only about 132 tons."

This very huge airship is shaped like a donut with a radius of 3 kilometers. It is composed of 3 independent sub-airbags and uses helium as the airbag gas.

Su Changli glanced at the payload of the airship, which was 3172 tons, and immediately felt relieved.

Baisha nodded: "Yes, it is because of the carbon-loving properties that microorganisms can easily insert some hydrogen and oxygen into the carbon chain during the synthesis process, resulting in structural defects in carbon nanotubes."

So the mass catapult project fell on the head of the motor area.

Therefore, when building tall towers, high mountains are chosen, in order to increase the altitude of the hard building structure as much as possible.

"In order to solve the problem of the collapse of the hose in a sub-vacuum state, the hose must be in a tight state, and then 16 cables are used as the core, plus a structural support ring every kilometer to ensure that the hose will not collapse."

Bai Sha shook his head: "No, they used biosynthesis technology. Although they produced carbon nanotubes with a length of tens of meters, they were unable to break through the length of [-] meters because of material properties and biosynthesis that were not suitable for this simple carbon substance."

"As for the material of the next wall of the hose, a low-elasticity high-strength film is used. In addition, the steel wire in the cable and the metal structure support ring can be used as the positioning target of the magnetic field radar to avoid contact between the spacecraft and the tube wall during launch."

"The airship has been designed, and all three test airships can fly to a height of 5 meters." Bai Sha called up the design concept model and directly holographically projected it.

Su Changli touched his chin: "The spacecraft must not be too large, and it is best to keep the radius below 15 meters."

Homo sapiens also didn't want to continue to irritate the two neighbors, lest they jump the wall in a hurry.

When this flower of the sky blooms, it will definitely shake the whole world.

The giant cannon launches the spacecraft because it can be launched quickly without considering the weather and the like, and it is directly lifted into the sky with brute force.

As long as the airship and hoses are manufactured, and then the exclusive spacecraft design and manufacture are completed, the project can start actual testing.

Clap clap!Everyone applauded too.

As for the airship, Su Changli just took a look at it. What he really cared about was actually the connecting pipe between the airship and the tower.

"Carbonophilic properties of carbon-based organisms?"

"Chief engineer, the tower is already at its limit. Even if we use various new materials, the high-strength structure with a height of 1000 meters basically cannot increase the height."

Sam, the engineer in charge of designing the launch tower, spread his hands helplessly:

"There is already a plan." Bai Sha swiped his hand across the holographic projection, and the screen immediately turned into a pipe with a radius of 50 meters.

Su Changli didn't pay much attention to it. After all, he had no intention of building a launch tower that could reach the Karmen Line at all.

Pointing to the pipeline, he explained: "To make the hose maintain a sub-vacuum, two problems must be solved, one is that the pipeline must withstand the negative pressure of the atmosphere, and the other is the high-strength and lightweight material with a length of 4.3 meters. "

And now Madagascar Aerospace City is working on the mass catapult project, and its chief engineer Su Changli naturally does not want to continue to follow the route of the Longerang cannon. He hopes to resolve the conflict between the mass catapult and the atmosphere.

After some discussions, Su Changli finally sorted out the progress of each group. Judging from the current situation, their quality projectors are just around the corner.

That is to say, Homo sapiens with deep pockets has the ability to launch so many large-scale aerospace projects at the same time.

Because this is unrealistic, even if there are endless new materials for Homo sapiens, they do not exist at this stage, and materials that can be built at a height of 100 kilometers.

"Steel wire? Will the weight be too high? The weight of the airship is not high."

Compared with the vast starry sky, human beings are too small.

Homo sapiens doesn't care about the continuous closing of the great powers.

If we don't try our best to develop now, human beings will only be trapped and die on the earth, and then, like the previous earth overlords, they will be annihilated in the long river of history.

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(End of this chapter)