The last human in the universe

Chapter 100 Alarm
The principle of the so-called ion propulsion is probably similar to that of an electromagnetic gun.The only difference is that the electromagnetic gun emits projectiles, while the ion engine emits charged particles after being ionized.

These charged particles can be accelerated electromagnetically to extremely high speeds -- in the case of the Voyager spacecraft, that's about 32 percent the speed of light.

Relying on these ejected high-speed particles, the spacecraft itself can obtain a reverse thrust similar to that of ejecting high-temperature gas, and use it as the driving force for advancement.

From this point of view, there is no essential difference in the way of advancement.

However, ion propulsion has a huge advantage that chemical fuel propulsion cannot match, that is, extremely saving working fluid.The biggest bottleneck restricting long-distance interstellar navigation is the amount of working fluid.

In this way, the utilization rate of the working medium can reach hundreds or even hundreds of times that of chemical fuel propulsion.Even, if technology is developed in the future, charged particles can be accelerated to a higher speed, such as 99% of the speed of light, then the reverse thrust obtained will be greater and the efficiency will be higher.

It is not certain that interstellar navigation will eventually be realized in this way in the future.

The original deep space civilization most likely used this method to complete the interstellar voyage.

Regarding this point, although there is not enough direct evidence due to the impact of the war, scientists generally believe that this is the case.

But ion propulsion also has a downside.That is, the direction of its spray must not face man-made objects, such as places like space cities.

The high-speed charged particles ejected by it are almost the same as high-energy cosmic rays in essence.And the energy is extremely high, basically where it is sprayed, it will be damaged.If it is sprayed on people, even if the distance is hundreds of thousands to millions of kilometers, the energy is enough to break the chemical bonds, causing the human body to suffer from severe radiation sickness and even cancer.

A slightly higher degree of damage is genetic collapse, and the genetic modification machine can't do anything about this disease.

So when the Voyager spacecraft sets sail, you should also pay attention to the direction of the jet. If it hits a space city, it will be a lot of fun.

Fortunately, all went well.

After orbiting Sedna for weeks, the Voyager spacecraft finally gained the speed to break free from Sedna's gravity.So it went away and sailed into the deep space.

In the main control room of the bridge, Cheng Xuanjia looked at the constantly rotating starry sky in front of him, his heart was full of passion.

After so many years of waiting, this day has finally arrived...

Soon, we humans will have a powerful fleet...

Time passed bit by bit, and in a blink of an eye, the Voyager spacecraft accelerated to the highest speed and entered the inertial navigation mode.After a few more years, the voyage was finally halfway through.

There have been long journeys of up to billions of kilometers, which have been quietly crossed during this time.

Before arriving at the destination, except for the daily emergency drills, most of the people in the spaceship had nothing to do and spent the most leisurely period of their lives.

But this leisure did not last long.

On an ordinary day, when Cheng Xuanjia came to the main control room as usual and continued to monitor the operation of the spaceship in person, a huge screen suddenly turned red.This made him raise his heart immediately.

This is the highest level of alert!

The next moment, a violent explosion occurred on the Voyager spacecraft that had been floating in the vast and deep universe for several years.A large group of flames, accompanied by countless fragments, rushed from the inside of the spaceship into the deep space of the universe.

Amidst the violent vibrations of the spaceship, an unknown number of sleeping people were awakened from their dreams.I don't know how many or leisurely walks, or busy people raised their heads in astonishment.

The thing that worried people the most finally happened.

This is in empty space.Here, even the nearest planet is at least a billion kilometers away.

Here, it is impossible for people to get any support from outside.

This is the risk that long-distance interstellar travel must bear.

At this critical moment, Cheng Xuanjia remained calm in the face of danger.

Now is not the time to look for the cause of the accident.The only thing that must be done right now is one thing.That is, control the situation as soon as possible to minimize losses.If you can't control the situation, at least you must keep the situation from getting out of control, and you won't get involved more.

"The location of the explosion is... a warehouse. The type is a high-temperature explosion. Activate the third emergency plan."

Along with the siren that resounded throughout the spaceship, Cheng Xuanjia's still steady voice reached everyone's ears.

"When the spaceship encounters an emergency, immediately activate the third contingency plan. From now on, all healthy men and women over the age of 18 should immediately report to their respective floor supervisors."

Under the command of Cheng Xuanjia, and below him, the vice-captain of the Voyager spaceship, the risk director, the material director, the civil affairs director, the mechanical director, etc., as well as the directors of all circles at the next level, and the floor supervisors at the lowest level, This whole set of administrative institutions immediately began to operate at the fastest speed.

The greatest magic weapon to deal with risks and difficulties is organization.With the ability to quickly organize the people, you have the ability to be invincible.

This is one of the most important achievements of Cheng Xuanjia's research on military theory for three generations and many colleagues.

At this moment, countless drills over the years finally paid off.

The people in the Voyager spacecraft, except for the daily maintenance of the spacecraft, doctors and teachers, etc., most of them have nothing to do.Of course, Cheng Xuanjia couldn't let these people waste their time.

Therefore, since his departure, he has organized countless crisis drills and formulated hundreds of different plans to deal with various crises.

There is a small practice in three days, a big practice in ten days, a monthly summary, and an annual selection. Those who perform well will be promoted and their salary will be raised, and those who perform badly will be demoted and their salary will be reduced. Deep into people's memory and body instincts before they are willing to give up.

This is Cheng Xuanjia's most important task during the voyage.

At this moment, his daily drills guided by military thinking finally had an effect.

At this moment, almost no one panicked.All adults flocked to the core square on the floor at the same time, and then under the arrangement of the floor supervisor, infants, sick patients, etc. were placed in a centralized manner, and some caregivers were left behind, and the rest were arranged in different arrangements from the top floor. Next, different tools were taken out, and they flocked to the positions that had been set during the drill in batches and batches.

The first-line rescue team is composed of spacecraft daily maintenance personnel, mechanics, engineers, etc., and is responsible for dealing with crises on the spot. Some people form a logistics team, responsible for providing support for the front line. The team tried their best to ensure that the scope of the disaster would not expand. Some people formed a spaceship maintenance team to ensure that the spaceship as a whole ran smoothly during the rescue process, and medical personnel formed an emergency medical team to deal with the injured anytime, anywhere...

Cheng Xuanjia felt that he was not directing a rescue, but a war.

Yes, this is war.

At this moment, he felt that his thoughts and limbs, as if they had the function of diverging, spread to every part of the spaceship, and spread to everyone who participated in the rescue.

Whether it can be commanded by the arm and run satisfactorily so that everyone can act according to their own will depends on whether the daily training is done well.And this point, Cheng Xuanjia can obviously get a full score.

Fire, wreckage, gas leaks, secondary explosions, and a busy and orderly crowd constituted all the contents of this rescue and disaster relief.

During this process, some people were injured and were taken to the rear field hospital for emergency treatment, and some people were unfortunately killed, even with no bones left. People could only endure their grief and continue to fight.Some materials were burned or blown up, and people didn't care about the pity, they only cared about preventing more materials from suffering this fate.

The emergency and disaster relief operations lasted a total of ten hours.Afterwards, the disaster largely subsided.The follow-up processing took a full ten days.

As early as the beginning of the disaster, Zhao Changxing got the news immediately.After that, he kept guarding in front of the communicator, waiting for further news.

When the disaster finally subsided, he was slightly relieved.When the cause of the accident was finally found out, there was a burst of anger in his heart, but it calmed down after a while.

The cause of the accident was a design error.The safety redundancy was not done enough, which led to the failure of the cooling system. It happened that the dust density in a certain cabin was too high, and it was finally detonated, causing a series of fires, which finally led to the accident.

But Zhao Changxing knew that he couldn't be too harsh on the original spaceship designer because of this mistake.

After all, this is the first such huge spaceship in the history of human civilization.No one has experience.Breakdowns and accidents are really a normal thing.

It is not normal without accidents and malfunctions.

"Follow the process."

Zhao Changxing gave the order.

According to the process, it is nothing more than downgrade, fine, expulsion and so on.It's amazing to sit in prison for three or four years, and it's impossible to be more serious.

At this time, the loss statistics table from the Voyager spacecraft was finally sent to Sedna.

Zhao Changxing's brows gradually frowned.

The Voyager spacecraft suffered little damage to its overall structure.However, the amount of material losses was considerable.

Especially food reserves.

There is not enough food to eat.Based on the existing grain and a certain degree of independent grain production capacity, there is still a gap of at least half a year.

Zhao Changxing sighed.

It seems that the Voyager spaceship will repeat the mistakes it made hundreds of years ago when it first came to Sedna.

(End of this chapter)