Since he came out to experiment and encountered these four "treasure stars" this time, Tang Feng also temporarily changed his plan and decided to stay in the asteroid belt for a while longer, looking for suitable asteroids, and waiting for the technology of the large ion thrusters obtained from Eric to be thoroughly digested by those experts on the earth, and after building a large enough thruster, he would find a way to "transport" these asteroids to the earth. Pen, fun, pavilion www. biquge。 info

The reason why space mining has not been realized by earthlings is because there are several thresholds that must be crossed are too high.

The first is to select the right asteroid, which requires extremely strong space technology, and it is no less difficult to find a needle in a haystack to select the right asteroid from millions of asteroids.

Second, even if a suitable asteroid is found, it is even more difficult to successfully drag the asteroid into low Earth orbit and make it obediently orbit the Earth than it is to find a suitable asteroid.

Because asteroids are running at high speed in space, even the slowest asteroids can travel at a speed of several kilometers per second, like some asteroids brought from Kuiper, and some can even reach speeds of tens of kilometers or even hundreds of kilometers per second.

If you want to "obey" these "unruly" asteroids, you can't do it with the current technology of human beings. Although the orbit of these asteroids can be changed by exerting a small external force on these asteroids in space, this external force cannot be achieved by human technology at present.

If you compare a high-speed asteroid to a large truck with a full load of 50 tons and traveling at 100 km/h at high speed, if you want to rely on external forces to change the direction of the large truck, then you need a big thing that is about the same weight and size as it. But in terms of human current technology, even if a rocket engine with the most thrust is used, the thrust generated by it is only about the same as that of an ant compared to this big truck.

As the so-called "mantis arm blocking car", the rocket engine with the largest thrust of human beings at present, in the face of this kind of asteroid, it is not even as good as a praying mantis......

Therefore, with the current technology of mankind, it is simply impossible to realize space mining.

As for the technology of the super ion thrusters that Tang Feng asked for from Eric, if those rotating parts on the earth can be eaten thoroughly, then the thrust generated by these super ion thrusters can be slowed down by these "rampage" asteroids at a distance of hundreds of millions of kilometers, until it is reduced to a speed that can make these asteroids "obedient".

Just like these four asteroids, although Tang Feng can't control their speed, he can easily control their movement. In other words, if that kind of super ion thruster can be installed on these asteroids, then Tang Feng can control the attitude of these asteroids to keep the asteroids in a state of deceleration.

Once the speed of these asteroids is reduced to the point where they can be completely captured by the sun's gravity, then these asteroids will follow the direction of the sun's gravity towards the Earth.

Then, during this hundreds of millions of kilometers, the asteroid will continue to slow down, and when the asteroid's forward orbit "just right" intersects with the Earth's orbit, it can be captured by the Earth's gravity, making the asteroid the Earth's second moon.

This sequence of actions is easy to say, but it is extremely difficult to do, and it requires a lot of computing power and a super power system. However, the most difficult of these two points of the power system, as long as the earth's rotating parts can understand the technology provided by Eric, then space mining is not a problem.

But in the same way, once such an asteroid is "transported" to the Earth's low earth orbit, then through the built space elevator, the mineral resources on the asteroid can be continuously transported to the surface, and even simply processed in space to provide sufficient raw materials for the super spacecraft in the "Tinder Project".

Of course, this process is also extremely dangerous, and the most dangerous stage is whether the asteroid can be successfully captured by the Earth's gravity and orbit around the Earth as calculated in advance, without rushing directly to the Earth.

Just like asteroid A, once such a large asteroid reaches the earth but cannot orbit the earth, but rushes directly to the earth under the gravitational pull of the earth, then well, the mass extinction event on the earth can be staged again in just a few minutes.

You must know that the asteroid impact event that caused the mass extinction of the dinosaurs 65 million years ago, the maximum diameter of the asteroid was only about 10 kilometers, but when the asteroid hit the earth, the energy generated was about equivalent to the power of 500 billion Hiroshima mushroom bombs, and the surface of the earth within 200 kilometers in diameter was directly liquefied, forming a ring volcano with a diameter of 180 kilometers, and it would also cause a tsunami at an altitude of more than 5 kilometers......

Let's put it this way, the impact of that asteroid caused the mass extinction of the dinosaurs. If the asteroid hits the Earth now, the number of people who die directly from earthquakes, volcanoes, tsunamis, and other disasters caused by the impact will vary depending on the impact location, and it could cause at least 5 million, and at most it may reach more than 100 million people who die instantly. Within a few years of impact, the climate and ecological environment will deteriorate severely due to the impact dust blocking sunlight, most of the world's life will become extinct, and the food chain will be broken, which may lead to the starvation of 3 billion to 4 billion people.

This is also a disaster caused by an asteroid with a maximum diameter of only 10 kilometers hitting the earth, and if an asteroid with a maximum diameter of nearly 30 kilometers like Asteroid A cannot successfully orbit the earth but rushes directly to the earth, then the consequences are simply unimaginable.

It is safe to say that once such a large asteroid hits the earth, then all human beings on the earth will immediately die, and no one will be able to escape this impact, even the international space station in low-earth orbit in outer space will crash due to the shock wave caused by the violent impact......

Don't look at the maximum diameter of asteroid A, which is only three times larger than the asteroid that caused the mass extinction of the dinosaurs, but the disaster caused by the impact is definitely not an order of magnitude!

Once such an asteroid gets out of control, it will become 100% a killer of the earth.

Therefore, if you want to "drag" these four asteroids to Earth, you have to consult the opinions of the people of Earth. After all, even if the technology can "drag" these four asteroids to the earth, no one dares to guarantee that there will be any accidents, in case there is a real accident, then Tang Feng will completely become a sinner on the earth.

Tang Feng didn't want to work hard to contribute to the earth, but in the end he ended up with the same title as "Earth Sinner" and "Earth Killer". Once this kind of thing really happened, even if Tang Feng could take his family to the Star Alliance, he would not be welcomed.

A person who kills his home planet, even if he has a river-level star core, will not be accepted by the Star Alliance!

Tang Feng really doesn't want and doesn't dare to be such a person! (To be continued.) )