The year is 3621 in the Earth calendar.
9.16 light-years away from the Kepler-452 star system, a massive fleet suddenly appeared in the dark and desolate universe amidst a violent fluctuation in spacetime.
The 30-times-light-speed-of-light secondary curvature technology shortens the entire journey to less than four months.
The gamma rays emitted by the antimatter engine and the various rays released by the active detection radar have made this star field lively again—just like it was three months ago.
The fleet hovered silently in the vast expanse of space, sending a tachyon signal toward the Kepler-452 star system.
...
"drop!"
A crisp reminder sounded in Lü Yongchang's office.
A message flashing with yellow light appeared in the azure holographic projection.
But Lü Yongchang, who was behind the desk, did not make a sound.
He remained quietly leaning back in his office chair, his eyes closed, as if he were asleep.
After a brief wait, the wake-up process began, and Zero's unique electronic synthesized voice rang out from the speaker.
"Professor, Professor!"
...
Within the technology tree space.
Lu Yongchang "sat" suspended in mid-air in front of the bright white technology tree, staring blankly at the mottled background in the distance.
In front of him was a cursor with a brightness exceeding 50%.
Tachyon Radar
After mastering curvature technology, a new problem arose.
Once warp drive is engaged, the starship's ability to observe the outside world is greatly reduced.
The reason is simple.
Existing observation methods are all based on the concept of a light-speed universe.
Therefore, when the speed of motion exceeds the speed of light, previous methods of external observation become largely ineffective.
To give an example, when a person is traveling faster than light, the naked eye can only see the starlight in front of them accelerating "rushing towards them," while the starlight behind them can no longer catch up with them.
The same applies to starships.
By processing the information transmitted from the front of the starship, the scene of the starship's direction of travel can be reconstructed very well.
There is currently no good solution for processing information from the rear or sides.
Therefore, modern planetary warships have a major flaw after entering faster-than-light travel – once they encounter an attack from the rear or side, the warships become like blind men, completely unable to evade or retaliate.
In other words, in order to cope with possible future wars, the current human fleet urgently needs a radar that can be used in warp drive mode.
Since this would not affect the normal navigation of the starship, the Academy of Sciences initially lowered the priority of this research slightly.
The Academy of Sciences only put this research back on the agenda after completing the remaining basic research.
The tachyon radar in the tech tree system can perfectly meet this need.
Tachyons undergo slight changes under the influence of gravitational fields and external energy.
Tachyon radar is designed based on this characteristic.
However, due to the nature of tachyons, it has a major difference from previous active detection radars—it is a passive detection radar.
However, this will not affect the detection accuracy and efficiency of tachyon radar.
Whether it's a planetary-level gravitational field or a planetary-level warship's gravitational shield or warp bubble... all of these will trigger a reaction from tachyon radar.
In addition, given the faster-than-light nature of tachyons, within the limits of accuracy, tachyon radar can even achieve passive detection of the surrounding area without delay!
Where there is a strength, there is also a weakness.
Despite its immense advantage of faster-than-light detection, it also has a major disadvantage—due to insufficient precision, it will not react much when the object being detected is too far behind or too small.
For example, a small meteorite.
Its gravitational field is too weak to induce frequency changes in tachyons.
For example, starships of Type IV civilizations and below that have not yet mastered gravity technology.
With relatively small mass and lacking sufficiently powerful gravity shield and curvature bubble technologies, it is unable to induce a reaction from tachyon radar. Even with a significant increase in detection accuracy, it can easily mistake these starships for asteroids in the universe.
This is precisely why the Cleaners civilization was forced to adopt a carpet search approach for the human civilization fleet at that time.
But is there a problem with this?
No problem.
For modern human civilization, or even for more advanced civilizations, what is the difference between a level four or lower starship and an asteroid?
"professor……"
"professor!"
The faint calls interrupted Lü Yongchang's thoughts.
After a moment's listening, he realized that it was Zero making the sound.
He stopped thinking, glanced again at the bright white tech tree and the mottled background, and with a thought, exited the tech tree space.
...
"Professor, professor..."
As consciousness returned, the voice calling in my ears quickly became clear.
Listening to that unchanging, monotonous, stiff electronic synthesized voice, Lü Yongchang felt a sudden ache in his teeth.
He suddenly opened his eyes: "Alright, stop howling!"
"teach……"
The synthesized electronic sound abruptly stopped.
"What happened?" Looking at the message flashing orange-yellow warning light in front of him, Lü Yongchang subconsciously frowned and asked.
"The expeditionary fleet has sent a tachyon message: the fleet has arrived at the coordinates area, but has not yet detected the target fleet..."
Lu Yongchang reached out and opened the message, quickly glanced at its contents, and said in a deep voice, "It's only been less than four months, they can't have gone far."
"Tell the expeditionary fleet to send probes to conduct a thorough search!"
"In addition, if war breaks out, let Zhao Zijie take command."
"receive."
Continue read on readnovelmtl.com