Earth Calendar, year 4055.
The first production lines for strong interaction material-dense hydrogen-successfully went into operation.
The experience gained from the Imperial Fortress had once again spared Human Civilization many detours.
With precise control from a grand unified field, the Spatial Rift-Cutting Device could cut dense hydrogen into separate portions.
As for how to weld it after cutting...
Academician Ding Chengwang proposed a welding device specifically designed for strong interaction material.
The entire welding device was essentially a miniature apparatus for producing strong interaction material.
According to the design, it could operate on the outer surface of a starship's armor, injecting the necessary particles into the target area through particle nozzles and a grand unified field to weld and fill breaches.
That same year.
The designs for the star-class starships of a level six civilization were also completed and passed Zero's simulation tests.
Construction began on enormous starships in spaceports scattered throughout the Kepler Stellar System.
Just like the gulf between a star and a planet.
The difference between star-class and planet-class starships was a quantum leap.
Their maximum cruising speed leaped from 100c to 900-1,000c.
Their energy systems were no less impressive. Massive increases in power output and energy storage capacity gave star-class starships equally dramatic improvements in endurance and range.
By conservative estimates, the combat radius of any star-class starship exceeded five thousand light-years.
With dedicated supply ships, that combat radius could even exceed ten thousand light-years.
For travel alone, their range reached truly staggering figures.
In addition, star-class starships were far larger than planet-class starships.
Mainline warships averaged eighty thousand meters in length, while the secondary flagship [Titan Mothership] exceeded one hundred thousand meters!
Human Civilization's eternal flagship, [Earth], reached a staggering two hundred thousand meters!
This was what a truly advanced civilization looked like!
Lü Yongchang