Chapter 87

Zhang Yuan nodded to show that he understood.

Even lazy people like Li Zhendong are in a hurry and want to make some achievements.

At the beginning of the spaceship, although there was the pain of parting, there was also a sense of expectation and freshness for the future.

But now, this sense of expectation is slowly passing, the pace of life in the spaceship is becoming faster and faster, and the number of people chatting on the roadside is also significantly less.

Because everyone clearly knows that this is in the desolate and vast universe, and this Mothership is everyone's all.

This sense of security is seriously inadequate.

Although the earth age is huge, warm and comfortable, it still can't compare with the earth, a planet that has been standing in the universe for 4.6 billion years.

If a medium-sized meteorite collides with it, it can completely destroy the spacecraft, and no one can survive.

Human beings, small and fragile creatures. If an ordinary person does not have a space suit and is exposed in the universe, his life will not exceed 90 seconds, the air in his lungs will completely escape from his body in a few seconds, and the residual oxygen in his blood can last about 15 seconds.

The next 15 seconds later, people will fall into a coma, can only survive the fate of the.

It is because everyone knows these common sense, as the parent star away, involuntarily produced a strong sense of uneasiness.

Even Zhang Yuan himself has such a sense of uneasiness. He often convulses in his dreams and wakes up to find that he has just had a nightmare and then falls asleep.

As a result, Zhang Yuan's entertainment gossip has become a life-saving straw, which has been talked about with relish. Because people want to create a relaxed environment similar to the earth to comfort their subconscious of fear.

This kind of subconscious change is normal. There are some psychological experts in the spaceship who are specially responsible for controlling this aspect. Large scale group activities are often held in various communities, not only to increase group awareness, but also to treat cosmophobia.

But even so, there are still dozens of patients with depression in half a year.

"So, if you want to find a life partner, you'd better find a beautiful girlfriend. Two people can complain to each other, and one person can only resist. Unless your psychological quality is particularly good... "

Again, again.

Zhang Yuan turned his head as if he had not heard.

"By the way, after the successful steering of the spacecraft, the nuclear power engine will be shut down, and it will not be turned on again until half a year later. If there is any observation experiment, you only have one day today Or, you can visit the side engine. "

Zhang Yuan nodded. Elder martial brother Zhao is really a very good instructor. Even if the experimental conditions are very poor, we can always put forward suggestions that are very suitable for the time.

In this respect, he is much more qualified than academician Ding. So far, apart from the regular meeting at the beginning of each month, Zhang Yuan has not seen Ding Zhaodong several times Even if I saw it, I couldn't say a few words.

In the next few minutes, he went to the side engine observation room, where there were bright displays, and many staff were focusing on the parameter changes.

From one of the displays, you can see that the long plasma flame is ejected from the flank, making the whole spacecraft slowly rotate.

The angular velocity of the spacecraft is very low. It takes more than 20 hours to complete the 180 degree rotation, so we didn't notice anything.

Looking at the second screen, it shows the plasma turbulence in the reactor. Under the extremely high brightness, even after special treatment, it is still a little dazzling.

This infrared image is like a complex water vortex. The transport of plasma across the magnetic field is mainly driven by low-frequency drift wave turbulence.

"Hi, Zhang Yuan!"

"Hi, hello." I said hello to several colleagues, but no one paid any attention to him. Zhang Yuan studies these screens on his own.

The high temperature produced by nuclear fusion will vaporize the metal sodium in the furnace wall. The hot sodium steam can do external work and generate electric energy.

At the same time, plasma will be ejected as working fluid under the action of magnetic field to provide kinetic energy for spacecraft.

The principle is very simple, but this nuclear engine device is the highest wisdom crystallization of human beings. It's so complicated that every part, even the welding method, can write a paper!

It is also the second generation of nuclear fusion engine.

Fusion of a helium-3 nucleus with a deuteron produces a helium-4 nucleus, a proton and a huge amount of energy. Because it does not produce neutrons, it is cleaner, more stable and less expensive to maintain than fusion of deuterium and tritium.

However, the exploration of helium-3 on the moon is actually a big trick in aviation engineering. Because the abundance of helium-3 in lunar soil is too low, and the cost of exploitation is too huge, we will find that helium-3 fusion is not as cost-effective as the first generation of deuterium tritium fusion.

However, it is not useless to build a space base on the moon, because the moon is the most suitable natural base for space industrial production. Even if helium-3 is ignored, the moon still has great development value.It was not until the later Jupiter base was developed that the second generation of nuclear engineering helium-3 fusion was really popularized.

"What you see now is the flow image of plasma turbulence. How beautiful! The control software was designed by your father 30 years ago using the general method of wavelet transform, and it is also the best algorithm of human beings at present. "

In the observation room, a senior brother named John Wilson said.

"Yes? The general method of wavelet transform.... " Hearing his father's name, Zhang Yuan was very proud.

"But in essence, the problem of plasma turbulence has not been completely solved up to now."

John Wilson is a high-tech talent who specializes in plasma physics. All day long, he laments that human technology is too poor, too naive and so on.

However, he is actually a very simple person.

"Isn't it a good constraint now? The current method is quite stable. Theoretically speaking, there will be no accidents for decades or hundreds of years. " Hearing that John was questioning his father's achievements, Zhang yuanlue was a little unconvinced.

"Yes, it is. But in your ancient Xia language, it's not wonderful to do miracles and restrain these plasmas in a very rude way! "

John Wilson said with great certainty: "if only 10 T magnetic field is used to restrain, I can guarantee that these high-temperature plasma will still splash on the furnace wall and stop the whole device!"

Now the magnetic field strength used by human is 100t, which is 10 times larger.

In addition, supercomputers monitor these plasma turbulence all the time, and use super computing power to maintain the balance of turbulence. No wonder it is called a typical miracle.