Deep Space Planet Leader

"Yes, it is really troublesome." The mechanics expert discussed: "Many technological advances are essentially advances in materials science."

"If there is a lack of rare earths, it will be difficult to make progress in materials science, and naturally there will be no powerful engines. Even some composite ceramics require rare earths."

How important are rare earths? ?

In materials science, it is as important as petroleum!

Take the engine as an example: in the era of turbojet engines, the gap between the turbine blades and the casing is wide, the temperature in front of the turbine is lower, and the deformation of the turbine blades during operation is within a controllable range. The materials can still be used.

In the era of turbofan engines, the temperature in front of the high-pressure turbine is higher and the tip clearance is smaller. The problem of turbine blade deformation becomes particularly prominent. The main element to solve this problem is rhenium. The addition of rhenium to nickel alloys can significantly increase the creep strength of the alloys, and it can also resist deformation well under long-term work.

If this element is lacking, then the Taipu people will develop into a turbojet engine and they will not be able to develop it anymore.

Most of the things that can be used on mobile phones are light rare earths, and the reserves are pretty sloppy, but heavy rare earths like rhenium are scarce.

"The mineable rhenium resources on Earth are only 2500 tons. This planet may be even less, perhaps only...100 tons? Such a large planet is useless at all."

Zhang Yuan couldn't help asking: "Our current material technology has widely used composite ceramics and nanomaterials, right? Many materials do not have rhenium. Is it possible for them to jump into technology."

"It's impossible. There are many materials that still have to use the rare Earth Element. It's even more because we have developed for hundreds of years...no, thousands of years. Your Captain, we are already Level 3 civilization." The scientist said: "You have to eat one bite at a time, and the road has to be step by step. If there is no previous results, it is impossible to have funds to study the follow-up results."

"If you connect an ordinary propeller airplane, Jet engines can’t be studied, how can ascending to the skies with a single leap? One of the important reasons for aircraft. Not only is the money not in place, but the lack of materials is also a major cause.

Of course, the Taipu civilization still faces the fourth difficulty, that is, the problem of too thick atmosphere and difficulty in launching rockets.

The friction coefficient of the atmosphere is directly proportional to the air density. Rockets flying at high speeds will experience greater resistance. At the same time, the high temperature of the rocket surface also places more demands on materials science.

"If this civilization wants to launch rockets, it must have higher performance materials. However, this difficulty is the simplest point, and it can be overcome by barely."

"The above is the objective environment that the Taipu people are currently facing. They are all difficult points."

Heard here, Zhang Yuan frowns, "Compared to humans, the Taipu people are really a very unlucky civilization. ...So, if I were the leader of the Taipu civilization, it would be quite cost-effective to launch some satellites with the help of human hands."

Li Zhendong said: "As for the connection After several decades, this batch of satellites has been scrapped. It doesn’t really matter whether there is another batch of satellites. Anyway, I’m already not in and I’m likely to retire. The people will only read me well."

"You are very politically conscious."

So, suppose the Enlightenment civilization really came to this planet 150,000 years ago, and they have inspected the entire planet. Later, you should be able to foresee these difficulties, how can you help them? In particular, this kind of help may happen hundreds of thousands of years later.

This issue is very complicated. Enlightenment civilization has always disliked direct gifts.

"If it is a human being, it is really difficult to help without directly donating technology. Especially, the other party was a group of primordial people 150,000 years ago... High gravity, high air pressure, lack of earth Element, how to solve it? Talking to the primordial people about rare earths and the like, they don’t understand."

The expert said excitedly: "...So we followed the idea of ​​archaeology and studied ten Fifty thousand years ago, what major event happened, whether it was a natural disaster or a man-made disaster. If this event has enough influence, it will inevitably be able to find some clues in history."

"Sure enough!"

"A super earthquake broke out from the ocean 150,000 years ago!"

"It is conservatively estimated that the magnitude has reached at least Level 13 ."

Level 13 earthquake!

For each magnitude difference of 1.0, the energy difference is about 32 times. In other words, a Level 6 earthquake is equivalent to 32 Level 5 earthquakes, and a Level 7 earthquake is equivalent to 1000 Level 5 earthquakes.

Then, a Level 13 earthquake is equivalent to 32,000 magnitude 10 earthquakes!

Such a super earthquake can already cause the displacement of the crustal plates.

At that moment, a huge tsunami occurred!

A large number of volcanoes erupted at the same time, and the dust hiding the sky and covering the earth blocked the global sunlight. Then, because of the drastic drop in temperature, which brought heavy global precipitation, a small ice age caused by earthquakes was born.

The duration of this little ice age is not too long. It lasted for more than two years. A large amount of precipitation caused the dust in the sky to fall again, revealing bright sunshine.

In 2 years, there will be no mass extinction of species.

However, the Taipu people have yet to investigate the specific cause of this earthquake. They can only attribute the ambiguity to crustal plate movement.

Zhang Yuan couldn't help asking: "So, is this earthquake related to the Enlightenment civilization? Could it be said that Earth Element appeared in large numbers in volcanic eruptions and earthquakes? It is a little bit possible...but This method is too rough...explosive?"

This is a straight visualization technique of many people, so that everyone will be a little speechless in surprise for a while.

The scientists on the stage couldn’t help but smiled bitterly, and then said: “We first investigated the area where the earthquake occurred. There is already a deep sea area. The deepest trench can reach 30,000 meters. I think, even the deep sea. There are huge mineral resources in the area, and the Taipu civilization can’t develop it."

"Thirty thousand meters of sea water, even we can’t develop it."

The ocean is indeed Huge treasure house, deep seabed Manganese nodules are well-known deep-sea minerals, containing more than 20 elements such as manganese, iron, nickel, and cobalt, with great economic value. However, these mineral sources will naturally occur even if there is no earthquake.

Most seabed mineral mining bases are built in shallow waters. Human deep-water drilling generally refers to offshore operations with a water depth of more than 900 meters, and extreme water depth refers to a water depth of more than 1,500 meters.

The deeper the water, the greater the difficulty will be. In the deep water area of ​​30,000 meters, even the human submarine seems a bit difficult, even more how large-scale development.

“For the time being, it is not possible to confirm whether the earthquake has an impact on the number of seabed minerals in the world. According to computer simulations, after a major earthquake, there is a certain probability, because seabed volcanoes erupt, the global seabed mineral resources are more There are more... specific numbers, we have no way to measure them."

"However, this earthquake also brought a series of subsequent chain reactions..."