In a void more than 60,000 kilometers away from the moon, Galaxy Technology Group's first space factory is still very busy, and anti-gravity spacecraft continue to transport materials from the earth here.

The second phase of the space factory project is in full swing, carrying the ambition of human beings for the sea of stars, and this space factory was officially named the 'Dragon's Nest' factory not long ago.

The Dragon's Lair, where dragons are born.

The meaning is that here, dragons will be born that soar into the starry universe, leading the descendants of Yan and Huang to continue to move forward in the sea of stars.

In the first phase of the factory, which has been completed, in a huge, empty room, scientists and engineers in special spacesuits float one by one, busy around a super-large engine.

This super-large engine, it is very huge, more than 100 meters in length, width and height, like a huge building, on which countless dense, as thick as an adult's arm, copper wires are entangled, neatly planned, people can't help but be shocked at a glance.

"I don't know how the stability is, it's best to be able to use the whole cast parts to be more reliable, this is composed of a variety of small parts, such a huge volume, the parts inside are designed to hundreds of thousands, reliability and stability are worrying."

Qin Yi looked carefully at the behemoth in front of him.

This is the second-generation anti-gravity engine that Qin Yi, Yang Hongyan and Zhang Jian led more than 200,000 scientists and engineers to build in more than half a year.

The second-generation anti-gravity engine, which uses the gravitational pull of stars, is actually the same as the stellar gravitational sail in science fiction, and the principle of anti-gravity engine is the same.

"We simply can't transport the monolithically cast parts into space, it's too big, and with our current technology, we can't miniaturize it without being mature."

"And it is foreseeable that for a long time in the future, the second-generation anti-gravity engine we have built will only get bigger and bigger."

Next to Qin Yi, Yang Hongyan said helplessly.

He now understood why Qin Yi insisted on spending such a huge price to build such a huge space factory in space.

Without such a huge space factory, it would not have been possible to say that a second-generation anti-gravity engine would have been built, because it was simply too large.

Moreover, it involves some manufacturing technology, which must be completed in space, and in the environment of microgravity and vacuum, many high-tech products can achieve the most perfect state.

"It seems that the project of the space smelting plant must also be put on the agenda, but at present, even if the space smelting plant is built, it seems that we will transport the ore to space for smelting, and it seems that the gains outweigh the losses and cannot be done."

"It's best to be able to mine asteroids, and it's the most cost-effective and profitable to use asteroids directly to smelt."

Qin Yi smiled and nodded.

I remembered the smelting technology of some interstellar civilizations I had seen in the Science Tower, using powerful spaceships to haul back asteroids with a mass of hundreds of millions of tons, and then using stellar light to directly smelt the asteroids.

In space, you can directly cast super-large parts, which are used to make large-scale spaceships, space warships, etc., and the overall casting parts are more stable, reliable and safe.

"I think stability and reliability should still be okay, in order to build this second-generation anti-gravity engine, we have spent hundreds of billions of Chinese dollars, almost all of which are built with real money."

"There should be no problem with the combination of small parts and large parts, and the quantum computer has been simulated repeatedly."

On the side, Zhang Jian touched his chin and said, he actually didn't understand why Qin Yi kept emphasizing the use of large-scale whole-cast parts, in fact, in his opinion, large-scale whole-cast parts are naturally very good, but they don't necessarily have to be so.

"If it is a general small spaceship, flying vehicle, etc., of course, there is no problem, because the power is limited, the power of the engine is limited, and the overall structure and stability of the spacecraft are not high."

"But our second-generation anti-gravity engine uses the massive gravitational pull of a star once it's mounted on a large spacecraft."

"Once it starts, its huge force will all act on the spaceship, and it will also act on itself, and the spaceship using the second-generation anti-gravity engine, according to our current calculations, its speed will be hundreds or thousands of times faster than the current anti-gravity spacecraft, and even a certain percentage of the speed of light."

"You can imagine that under the action of such a powerful force, at such a terrifying speed, if the engine and the spaceship were still built according to the previous ideas, and nothing else was needed, this huge force would be enough to tear the spaceship to pieces."

"The more power it has, the more powerful it needs to be supported by a structure and body, and only by using high-strength materials, then using integral casting, and then hollowing out to build it is the most reliable and safest."

"The more parts there are, the less safe and reliable they are, and the more likely they are to have problems in the face of strong power."

Qin Yi said with a smile.

Interstellar navigation has just begun, and everyone has no experience in building spaceships and space warships that can sail in the stars, and their thinking is still stuck in the old mode.

In fact, hundreds of years ago, during the Age of Discovery, the Europeans cut down almost all the large trees in Europe in order to be able to build bigger and stronger warships and sea ships.

In that era when ships were made of wood, the most important thing to build a good ship and a powerful warship was the keel of the ship, and the keel needed large trees, and the larger the ship, the bigger the keel.

In Europe at that time, there were many cedar, pine, and the best teak, and these trees were many good timber for shipbuilding, and the most precious teak was used to make the keel and deck of the ship.

The larger the teak, the larger the boat, the more expensive and very valuable it is.

At the same time, Huaxia was in the Ming Dynasty, although Zheng He's great navigation feat went to the West, but because the wood used for shipbuilding was very difficult to find at that time, all of them needed to find large trees from Yunnan, Guichuan, Hainan and other places to manufacture, in disguise, the cost of shipbuilding was very high, from this point of view, basically hindered the development of Huaxia in the field of navigation at that time.

Because you can't find the right wood, you can't build a powerful ship, and even if you can, the cost is very high, and a piece of wood that can be used to lay a keel is too expensive.

The situation now is a bit similar to that time, the second-generation anti-gravity engine is very powerful, and it needs the spacecraft to have a strong structure and support, otherwise the spacecraft will not be able to support it at all under such a terrifying force.

PS: Happy Mid-Autumn Festival~~