Of course, the hourglass scheme combined with gravitational acceleration can theoretically indeed push the speed of a spacecraft to near the speed of light.

But "theoretically", the word itself is the result of an ideal state all along.

Many researchers in the Science Division have analyzed the conditions to reach the speed of light.

First, gravitationally accelerated star nodes must all be composed of blue supergiants, whose gravitational strength can propel a spacecraft to near the speed of light.

And the number of star nodes of this level needs to be at least 30,000.

Blue supergiants are rarer stars in the universe than black holes and neutron stars, where can human civilization find a series of 30,000 blue supergiants?

Isn't this embarrassing for me to be a fat tiger?

All right! Even if human civilization is unlucky and just finds a series of 30,000 blue supergiant stars, there is no way for human civilization to transform it!

Building a Dyson ring around a blue superstar?

The resources that need to be consumed in this, even the human civilization that controls tens of millions of planetary systems, feels the scalp tingle.

And that's just one of the small challenges.

Another problem is the material of the spacecraft.

Why is it that the ultimate speed of the spacecraft on the high-speed route of human civilization at this time can only reach 45% of the speed of light?

The answer is not only that the gravitational field energy level of the gravitational acceleration of the star is not enough, but also an important reason, that is, the current materials of human civilization can only withstand the limit speed of 45% of the speed of light, and beyond this speed, the spacecraft will disintegrate in minutes.

As spaceships get faster and faster, various restrictions begin to appear on the materials and structure of the spacecraft itself.

Many people say that the spaceship in the universe era does not require much appearance, as long as the dynamic balance is good, even if it is a cube shape, it can also be the shape of a spaceship.

This statement is actually limited to the stage when the spaceship has just entered the cosmic age and the speed of the spacecraft has not exceeded 1% of the speed of light.

For human civilizations, which have sailed at 45% of the speed of light, the shape of spaceships has become increasingly important.

For example, this time, in order to adapt to the soaring speed of the spaceship, the spaceship was designed to be a sphere, and an "hourglass" hole was added in the middle, the purpose of which was to inhale various oncoming substances.

Orion cantilever, outer region.

A frontier for the frontier of humanity.

Not far from a huge orange main-sequence star, a "planet" with a radius of about 1,800 kilometers flew around the outer side of the main-sequence star at an unimaginable speed, and its flight speed reached 33% of the speed of light at the moment it was "thrown out".

It's a terrifying speed.

If a star the size of the sun were hit by the planet, there would be a high probability that both would be killed.

This planet is a new type of space battleship built by human civilization in the past 100 years, the Sirius Star Space Battleship.

Sirius space battleships are not just warships, they are also colonial ships themselves.

Since the new human beings have long been not limited by the earth's gravity, this kind of large space warship, under normal circumstances, is dual-use.

The maximum speed of this Sirius-class space battleship is 45% of the speed of light, but this can only be achieved with the help of high-speed routes.

Without high-speed routes, it would only have a limit speed of 24%.

Engineers and researchers of human civilization have long thought of this.

In order to ensure the speed of these new space warships, solutions have been thought of in advance when designing space warships.

That is to use natural black holes and neutron stars to carry out gravitational acceleration, although natural black holes and neutron stars are not evenly distributed and rarely in a straight line, but it is better than nothing.

But speed is not all the virtues of Sirius.

The defense and attack power of the Sirius star have also reached unprecedented heights among the various types of space warships of human civilization.

Since Sirius can use gravitational and magnetic fields to suck oncoming matter into the Loophole Thruster, it also means that Sirius can suck the high-energy particles emitted by the enemy into the Hole Thruster.

This gives Sirius unrivaled defense.

The attack power, which also comes from the hourglass structure in the center, has a spiral vacuum acceleration pipe embedded in the inner wall, which can fire a particle cannon with a very high energy level.

In addition, the gravitational field generator of Sirius can also distort stars and planets, and by destroying the gravitational field stability of the planetary system, the entire planetary system will enter a state of gravitational chaos.

The Sirius Star, which integrates various top technologies of human civilization, has built a total of 266 ships through more than 100 years of continuous production.

With these Sirius-class space battleships, human civilization has not only rapidly expanded into the outer cantilever of Orion.

In the war with the Aquarius arm of the Silicon Clan and the Smart Machine, dozens of Sirius Stars also slaughtered the Quartet, further compressing the living space of the Smart Machine Civilization and the Silicon Civilization in the Aquarius Branch.

With the large-scale popularization of gravitational field generator technology and the in-depth excavation of gravitational technology, the comprehensive strength of human civilization has become stronger and stronger.

If it weren't for the lack of faster-than-light navigation technology, human civilization might have directly entered the cantilever base camp of the Silicon civilization.

However, the advantages of human civilization over the silicon civilization have become bigger and bigger unconsciously.

With the establishment of stellar gravitational shields one by one, the construction of the gravitational defense circle has basically been completed in the direction of the Cianite Cantilever, the Centauri Cantilever, and the Galactic Heart region.

A strong gravitational defense ring further enhances the security inside the human realm.

At the same time, this also gives human civilization greater confidence in fighting against the Silicon civilization and the one-eyed civilization.

After all, in this cruel universe, civilizations are never warm and affectionate, but life and death.

Now that human civilization has seized the strategic initiative, it certainly cannot miss this opportunity.

If it weren't for the fear of the Silver Heart Region, there might have been a powerful first-level civilization, and human civilization would have marched to the Silver Heart Region a long time ago.

After much discussion, the Office of Strategic Analysis finally decided to focus on the Silicon civilization in the cantilevered arms of the Celestial Constellation first.

Then attack the one-eyed civilization of the Centauri cantilever, and finally test the Silver Heart area.

However, attacking the Immortal Constellation cantilever of the Silicon Civilization also requires strategy, even if the human race has a great strategic advantage at this time, it still needs to be cautious.

In the early stage, it is to attack a small area with all your strength, and then through the neutron cage, you will enter the cantilever of Xianying with the fire of civilization, and quickly rush to land.

After gaining a foothold, they quickly encroached on the territory of the Silicon Civilization in all directions through technological superiority, and finally replaced it.

Thank you for your support (ω)

(End of chapter)