Chapter 263 Relativistic Effects

At this moment, around the earth, ten huge aerospace motherships, each with a length of more than ten kilometers, have been moored in place. Tens of thousands of Stardust-class, Nebula-class, and Asteroid-class warships are slowly maneuvering and docking on the berths of the aerospace motherships.

The so-called berths are the "steel pipes" extending from the core hull of the aerospace mothership.

These warships will hang themselves on these steel pipes and fix the hulls with special steel cables.

On average, an aerospace mothership can carry about 6,000 warships of various types. Han Yang built 50 aerospace motherships, which can transport about 300,000 warships.

However, Han Yang did not plan to transport so many warships. After all, this is an interstellar expedition, and the aerospace mothership also needs to carry a lot of fuel and supplies.

The saved transportation capacity was used by Han Yang to load fuel and supplies.

One warship after another was hung on the aerospace mothership, and a murderous atmosphere continued to spread in space.

This scene was presented to every human who cared about this interstellar expedition through live TV.

The figure of Han Liang, the head of human civilization, also appeared in front of people.

In front of the camera, Han Liang was solemn and serious.

"Fellow countrymen, comrades.

Facts have proved that in this vast universe, only we can protect ourselves.

We also need to fight for the survival and development space of human civilization.

We also need to avenge our hatred with our own hands.

Hundreds of years of colonization by the Ita civilization has brought great suffering to our civilization. But at this moment, only some front-line colonists such as Malendin have paid the price for this.

The real culprit is still alive and well in the Ita galaxy.

They eat my flesh, drink our blood, and use our blood and tears to forge the glory of their own civilization.

If we don't ask for this blood debt, the Ita civilization will never pay it back.

In this case, then I, the head of human civilization Han Liang, solemnly declare that the human civilization expeditionary force, the expedition to the Ita galaxy, the action of asking for blood debt, will start now!"

At this moment, the entire solar system, any place where humans exist, burst into cheers.

"Blood debt must be paid with blood! Blood debt must be paid with blood!"

"Let the Itars pay the price!"

"Expedition! Expedition!"

Han Liang's expression was still solemn: "Our human civilization has become strong!

From today on, no one can ride on our heads anymore!

Whoever dares to bully us again, we will make them pay the price with blood!

Warriors, I order, set off! Use our warships and guns to collect the blood debt owed to us by the Itars!"

Set off!

Set off!

At this moment, deafening cheers rang out again. In the aerospace mothership, in the warships, a total of 500,000 human warriors participating in this expedition also cheered at this moment.

Yes. Han Yang claimed to have recruited 50 million warriors, but the actual number was only 500,000.

Han Yang was not worried that this would be detected as abnormal. The reason is simple. Ordinary people do not have enough intelligence acquisition capabilities, and it is impossible to confirm whether the number of warriors is 50 million or 500,000.

At the same time, since most of the military leaders were fake people controlled by Han Yang, it was almost impossible for human generals to detect any abnormalities.

Human generals or officials who reached a certain level, because their level was high enough and they looked at the problem comprehensively enough, could vaguely detect some abnormalities, but they would be told that this involved a core secret of human civilization, and they were not allowed to know it because of their low level of confidentiality, and were not allowed to inquire about it.

Under the premise that Han Yang had always done a good job in confidentiality education, these human officials or generals could only suppress their doubts even if they had them in their hearts, and would not explore them at all.

Following Han Yang's order, at this moment, the hundreds of thousands of engines on the 10 aerospace motherships located around the earth were started together.

The energy supplied by multiple nuclear fusion power plants turned into extremely high-speed plasma and ejected from the tail of the engine, pushing the huge aerospace mothership with a mass of hundreds of millions of tons to slowly accelerate and slowly break free from the gravity of the earth.

At this moment, hundreds of thousands of stars seemed to appear in the night sky of the earth at the same time, and the dark night sky seemed to be colorful at this moment.

The engine of the aerospace carrier did not directly spray at the earth. Because the energy of the tail flame is too high, if it is sprayed directly at the earth, it will cause great damage to the earth, no less than a large solar flare.

At this moment, people only see a little afterglow of the engine, which is so bright. If it is sprayed directly at the earth, there will be ten stars in the night sky of the earth that are as bright as the full moon, directly illuminating the night sky of the entire earth.

This is the power of a huge interstellar spacecraft like the aerospace carrier.

At the same time as the aerospace carriers around the earth began to start, a total of 40 aerospace carriers located on the other planetary bases also began to maneuver together.

A total of 50 aerospace carriers will gather outside the orbit of Neptune and then embark on an expedition to the Eta galaxy together.

In the vast sky, one planet after another was swept by. Just over a month later, the aerospace carrier fleet crossed the orbit of Neptune, and 50 aerospace carriers gathered here to form a formation.

At this moment, the fleet's speed is about 3,650 kilometers per second.

The speed is still accelerating. At the same time, a total of about 5,000 warships left the berth and dispersed around the aerospace mothership to take on the escort responsibility. There are also a large number of self-powered detection satellites, which are scattered around the fleet as far as 10 million kilometers to ensure that no hostile warship can get close to them.

Now that there are thousands of warships on an aerospace mothership, if you don't take precautions, if you get close, a hydrogen bomb can destroy an aerospace mothership and thousands of warships. Han Yang can't afford such a big loss.

Throughout the voyage, Han Yang will always ensure that the number of escort warships is not less than 5,000. Of course, they will rotate and can easily enter the berth to get supplies at any time.

Time slowly passed, and the fleet continued to accelerate.

A year later, the fleet speed reached about 38,000 kilometers per second, and sailed a total distance of about 600 billion kilometers.

Even at such a long distance, the remote observation equipment inside the solar system can clearly observe the fleet's tail flame.

There is no way, their power is too high, too bright.

In fact, until 3.2 years later, when the fleet speed has reached 40% of the speed of light and the total sailing distance has reached 6.1 trillion kilometers, Han Yang's sky survey observation equipment can still capture their tail flame traces.

According to Han Yang's estimate, he will not be able to capture the tail flame traces through conventional sky survey observation equipment until the distance is expanded to about 7 trillion kilometers. However, it can still be captured using dedicated high-performance directional detection equipment.

At this moment, the acceleration finally stopped and the fleet entered the inertial navigation mode.

What awaits the expedition fleet will be 45 years of inertial navigation, and a total of about 18 light years will be sailed. After that, the fleet will start to slow down, and after it really reaches the Eta galaxy, it will slow down to a low speed state to facilitate the war.

Of course, the so-called 45 years here is actually just the time observed by people in the solar system.

Based on the relativistic effect, the faster the object moves, the slower the flow of time. However, the speed of 40% of the speed of light is enough to trigger a very obvious relativistic effect.

Through calculation, Han Yang confirmed that 45 years of time passed in the solar system, but only about 41.25 years of time passed in the expedition fleet.

This is equivalent to one year passing for people in the solar system for every 11 months in the fleet.

If Han Yang can achieve the economic speed of the expedition fleet to 80% of the speed of light, like the third-level civilization, then the relativistic effect will be even more serious, reaching the point where one year passes in the solar system for every six months in the fleet, and the speed of time will be slowed down by half.

When the fleet speed reaches 0.99999999348 times the speed of light, it can even achieve the effect that one year of time passes in the outside world for every hour in the fleet.

Of course, Han Yang does not think that the third-level civilization, or even the fourth-level civilization, can reach this speed. Because at this speed, the relativistic mass will be extremely large.

A substance with a mass of only one gram will increase its relativistic mass by about 27,700 times at a speed so close to the speed of light, reaching about 27.7 kilograms.

To push heavier matter, more fuel is needed. More fuel means more mass. This means that even more fuel can no longer increase the speed, which means that even advanced civilizations, in Han Yang's opinion, are unlikely to accelerate objects to such a high speed.

Of course, this is only for macroscopic objects. Because even Han Yang at this moment, in a particle accelerator, has already been able to accelerate particles to a speed far beyond this speed.

It's not just the relativistic effect. There are more wonderful things happening during such a high-speed voyage.

For example, redshift and blueshift.

Approaching an object will cause blueshift. Moving away from an object will cause redshift. Just like the sound of a car whistle will have different tones when approaching and moving away.

Light waves and sound waves also have similar properties.

At this moment, the bright stars in front of the fleet gradually showed blue light because of the high speed at this moment, and the background of the universe gradually changed from black to a faint blue, like an endless sea, which was breathtaking.

The stars behind the fleet showed a faint red. But the background of the universe is still black, and even darker.

The magnificence and wonder of the universe are truly displayed in front of Han Yang at this moment. And, in such a magnificent universe, the expedition fleet has spent more than 40 years. (End of this chapter)