The former, Earth can easily make.
The latter is to create a 'small ecological home' where humans can survive in space.
It also has conceptual design diagrams.
It's a massive spaceship several kilometers long, capable of carrying a huge amount of superconductors and production lines.
Materials from the Moon can also make superconductors.
However, this spaceship is quite peculiar.
Besides being a large battleship structure, it has a series of constantly rotating gravity balance rings around its hull.
These rings, nearly a mile in diameter, can also accommodate people.
Even though it's constantly spinning, people can walk as if on solid ground.
For example, you might be beneath the ring now, standing on a piece of land.
Later, whether it rotates to the top or to the side.
In theory, you'd fall headfirst when the land is on the ceiling as the ring spins above.
However, in reality, you're still on the ground, and it remains at your feet.
