Bright Sword starts with the grenade flat.

Chapter 259 Mars Window Period

Liu Xiunong's experiment on the pulse detonation engine on the rocket was very successful, and he can now easily control the landing, takeoff and hovering of the rotating pulse detonation engine installed.

Of course, the success of this rotating pulse detonation engine naturally means that the original design drawings of the space station used to fly to Mars will have to be changed.

At least the rocket engines used for propulsion in the space station must be changed to rotating pulse detonation engines.

Because in this way, more than 40% of fuel can be saved.

The extra fuel weight can naturally be used to carry other supplies. Then with more supplies, a larger Mars living base can be built on Mars to accommodate more people!

You know, going to Mars is not as simple as going to the moon. Once you go there, you can come back immediately.

Because Mars is not a satellite of Blue Star like the moon, and the distance around Blue Star is not much different.

So after landing on the moon, you can come back whenever you want.

Mars is a planet of the sun just like Blue Star. It revolves around the sun, but the speed and orbit of the circle are different. Therefore, if you want to land on Mars from Blue Star, you must wait until the time between Blue Star and Mars. The distance is the shortest, so that fuel and time can be saved to the maximum extent to land on Mars.

After all, the distance between Mars and Blue Star is not static. The maximum distance can reach more than 400 million kilometers, and the minimum distance can be close to 55 million kilometers.

However, Liu Xiu was not worried about this. The successful test run of the rotating pulse detonation engine allowed Liu Xiu to save a lot of fuel.

Therefore, many people think that landing on Mars and landing on the moon are just different distances. Thinking this way is looking down on Mars.

The first is distance. The average distance between the moon and Blue Star is 380,000 kilometers. Generally speaking, it only takes four days from launching a spacecraft from Blue Star to landing on the moon. The average distance between Mars and Blue Star is 200 million kilometers, so at this speed, from the closest point, it will take about 580 days.

Moreover, the orbit of Mars is still elliptical, so this minimum distance only occurs every fifteen years.

Of course, if the sun becomes a line between Mars, Sun and Blue Star in the middle, it will be the maximum distance. The maximum distance is 375 million kilometers to more than 400 million kilometers, so if you want to land on Mars, you can only choose Sun and Blue Star. It's time for Mars to align.

In fact, the fuel problem can be easily solved. After all, several human probes have successfully landed on Mars. The most difficult thing is the materials that astronauts need. It takes three years to come and go! Generally speaking, this kind of landing requires three astronauts, and an adult needs three kilograms of food and water per day. Calculating this, the astronauts’ diet alone costs about ten tons. "Every inch of land on the spacecraft is precious," which has seriously compressed the space for other materials.

Of course, if you can't keep up with this minimum distance, you can still make do with the ordinary minimum distance, because every twenty-six months, the sun, Blue Star, and Mars form a line in this order, and at this time it is the ordinary minimum distance, which is about five Between 15 million kilometers and 75 million kilometers.

Secondly, it is very difficult to return from Mars. So far, no detector has been able to make it both there and back. Those who don’t have manned missions dare not come back rashly, let alone manned missions to Mars. If humans want to land on Mars, they must at least have a precedent for an unmanned probe to return. Round trip means that a large amount of fuel must be carried, which places extremely high requirements on spacecraft that will land on Mars in the future.

Moreover, Liu Xiu's method of landing on Mars was not to directly land the entire space station acting as a spaceship on Mars, but to use a landing module to land like the Apollo spacecraft, which could save a lot of fuel.

The same goes for returning later. You can use a small return capsule to return to work. As for the space station, it can stay on Mars and serve as a communication relay satellite.

And it can also serve as a space vegetable garden. Yes, in order to solve the problem of astronauts’ food in the sky, Liu Xiu launched the space station’s planting module as early as when the space station could be habitable, so that the permanent astronauts on the space station can experiment with space. Planting. After a series of experiments, the plants in space were successfully able to maintain good growth!
Even because of the low gravity environment in space, plants grow faster than the growth environment on the blue star.

Yes, it is very difficult for plants to grow in space. Unlike on the Blue Star, there is almost no gravity in the space station, so although the plant seeds germinate and grow, they grow randomly.

In order to solve this problem, there is actually a very simple method, which is to use the centrifugal force of rotation to simulate the gravity of the Blue Star. Of course, there is no need to simulate the same gravitational acceleration as the Blue Star, only one-tenth of the gravity is needed. Acceleration can make plants grow well.

Of course, in addition to centrifugal force simulating gravity, there is also electrical stimulation to control the random growth of plants in space. However, this method is somewhat difficult, so it is currently being tested.

The advantage of the microcurrent stimulation method over the centrifugal gravity method is that it does not place too high demands on the implantation equipment.

Of course, whether starting centrifuge planting or micro-current planting requires electrical energy to maintain.

Fortunately, Liu Xiu had already installed many solar power generation panel modules on the space station. These power generation panels can provide sufficient power to power the entire space station.

The time was spent launching rockets, expanding the space station, and doing experiments in the space station.

In the blink of an eye, Liu has arrived seven or seven years ago. At this time, the space station has almost been built according to Liu Xiu's design drawings. It has reached the final fuel injection stage. When the fuel injection is completed, it will be time for the space station to set sail for Mars. It's time.

In order to determine the best launch time, Liu Xiu naturally had to go to the observatory to determine it.

After all, observing celestial bodies and identifying planetary bodies is their job!

Just when Liu Xiu entered the observatory, he heard the quarrel coming from the director's office.

"Comrade Fu Jianming, your conclusion that the sun is about to undergo a helium flash is so ridiculous! So I don't agree with your proposal to reflect this report upwards!"

After the director's voice ended, another young man's voice said:

"But Comrade Director, how can we explain that the temperature of Blue Star has been getting higher year by year in recent decades? Moreover, I have also checked ancient astronomical records, and there is not as much activity as in recent decades!" "

"Everyone has explained that the rise in temperature is the greenhouse effect, the result of excessive industrial development emitting carbon dioxide. It has nothing to do with the sun at all!"

"But, the sun shines......"

However, when the young voice wanted to say more, he was interrupted by the voice of the old station director:

"Okay, Comrade Xiao Fu, stop talking about the sun. I know you are very talented in astronomy, so I will transfer you from the solar observation team to the Mars observation team! You also know that our space station has It’s almost ready for Mars landing in the next year or two!”

(End of this chapter)