Homo sapiens

Zhu Rongcheng rotates slowly in the Mars synchronous orbit.

The centrifugal force generated by this rotation causes the outermost annular chamber to generate a standard gravity (simulation).

Since the length of the spiral arm has reached 15 kilometers, the gradient difference caused by the rotation is negligible and will not affect the lives of new humans and Earth's animals and plants in the standard gravity chamber.

Although Yin Siyong and others synchronize the robot state, they can still feel the pseudo-gravity caused by centrifugal force.

After watching the movie, the group visited the botanical garden.

While admiring all kinds of strange plants, a crew member asked in a low voice: "Captain, do we want to return to the moon tomorrow?"

"Back to the moon? No, we're going to the Cooper Belt."

"Cooper Belt? Rapid mode? That's fine." Michelle reacted immediately.

Yin Siyong nodded: "The headquarters wants us to test the rapid mode and take a tour of Gubai belt."

"Are there no other tasks?"

"Of course, we will stay here for one more week. The Mars colony is preparing a batch of satellites. Then we will throw these satellites into the Cooper Belt."

Michelle was a little surprised: "Just throw the cypress belt? No specific positioning is required?"

Yin Siyong shook his head: "Of course not, we are going to take a walk around the ancient cypress belt. Do you understand?"

"Take a tour? I understand."

The so-called walking around means obviously flying around the entire cypress belt.

In the field of traditional astronomy, it is generally believed that the main part of the Kuiper belt only extends from the 2:3 resonance area at 39.5 AU to the 1:2 resonance area at 48 AU.

Moreover, the Kuiper belt is very thin, mainly concentrated within 10 degrees above and below the ecliptic plane, but there are still many celestial bodies scattered in a space several times wider.

Overall, it is less like a belt and more like a tori or donut, which means the Kuiper Belt has a 1.86 degree tilt to the ecliptic plane.

For safety reasons, on the third day of duty, Yin Siyong took a group of crew members and began to plan the flight route.

Looking at the holographic star map in front of him, Harriet, the navigator of the battleship, pointed to the ecliptic plane of the solar system:

"If we sail along the ecliptic plane, we must pass through the asteroid belt, the orbital domain of Jupiter, Saturn, Uranus and Neptune. There are not a few asteroids in these areas, especially those tiny asteroids."

This is also something Yin Siyong is very worried about.

After all, the protective power of a space battleship traveling at high speed is not much higher than that of an ordinary civilian spacecraft, even if it is equipped with a magnetic field shield.

Especially this time they are going to test the rapid mode. By then the warship's speed will soar to 1,000 kilometers per second, and it will only take 41.6 hours to cover the distance of one astronomical unit.

This speed is much faster than bullets and missiles. Once it collides with other things, the consequences will be disastrous.

There are many cases of civil aviation airliners on Earth where airliners and birds collided head-on. As a result, the nose of the airliner was hit with many craters.

The slow speed of civil aviation aircraft will be damaged by the impact of relative speed, let alone a spacecraft traveling at a speed of 1,000 kilometers per second.

The headquarters has actually given some consideration to this issue. At this time, the staff of the Mars colony are adding armor and one-time anti-collision reactive armor to the head of the Azure Dragon-class space battleship.

But adding armor is actually just a temporary solution rather than a permanent solution.

After all, the speed is as fast as 1,000 kilometers per second, and no matter how thick the armor is, it won't have much effect.

Therefore, Yin Siyong, who did not want to fail the test, could only find ways to reduce risks during the voyage.

"The zodiac route is indeed too risky. I suggest changing the route." Michelle said while drawing another route on the holographic star map.

This route still starts from Mars, but the direction no longer flies along the ecliptic plane, but first flies one astronomical unit (about 150 million kilometers) perpendicular to the ecliptic plane in the direction of Polaris.

Then change the flight direction and fly parallel to the ecliptic plane in the direction of Kubai.

Fly above the cypress belt, and then fly vertically downward one astronomical unit to enter the interior of the cypress belt.

Although this will increase the voyage by two astronomical units, the safety will be improved dozens of times. After all, the stars in the solar system are generally concentrated on the ecliptic plane. If you avoid the ecliptic plane, you can avoid most of the stars.

Yin Siyong thought for a while, and he also thought this plan was good: "I agree with this plan, but the voyage this time is a bit long. I need to prepare more spare parts for the lithium carbon nanolayer."

"Well, after changing the route, the original distance of 43 astronomical units increased to 45 astronomical units." Michelle also felt a headache.

To know that the distance of 45 astronomical units is just the prelude to this voyage, there will be a longer mission to circle the Cooper Belt.

How long is the Cooper Belt?

According to the formula of circle circumference, circle circumference = circle diameter × pi.

It is now known that the Kuiper Belt is 39.5 AU to 48 AU from the center of the solar system, which is the radial distance.

The diameter is 89 to 96 astronomical units. Multiplied by the pi ratio of 3.14, the circumference of the Kuiper Belt can be calculated to be approximately 279.46 to 301.44 astronomical units.

According to the ultimate speed of their Azure Dragon class, one astronomical unit takes 41.6 hours, which takes more than 10,000 hours, about 500 Earth days.

And this is the sailing speed at the extreme speed. Obviously after they enter the Cooper Belt, they will definitely not be able to move forward at full speed.

In this way, they estimated that they would have to sail in the ancient cypress belt for several years.

Even if the nuclear fusion power system does not need to be started in the inertial flight mode, it must be started repeatedly during the stop-and-go process.

Yin Siyong and others had to carefully calculate how long the nuclear fusion power system needed to run during the voyage. This data was crucial.

But just when they were troubled.

The Carr team contacted them.

In the holographic communication screen.

After listening to Yin Siyong's explanation, Carl replied with a smile: "I can help you solve part of your worries. This is the magnetic field and tailfield fine-tuning procedures."

Immediately a software installation package was sent.

"As long as you insert this patch into the intelligent management system of the nuclear fusion power system, the service life of the lithium carbon nanolayer can be increased by 30 to 40%."

"Really? That's great." Yin Siyong breathed a sigh of relief.

But Karl reminded: "Don't take it lightly. This patch can only be used in areas with relatively small gravitational interference. After you enter the Kuiper belt, part of the area is the gravitational resonance area of ​​Neptune, and the patch may fail."

"I understand, thank you Dr. Karl for the reminder." Yin Siyong nodded.

A week passed quickly.

The Qinglong-class space battleship where Yin Siyong is located has begun its final sailing inspection.

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