Chapter 354 Reflection, white men must also reflect (5k)
“After reading this, my thought is that we should not think about being perfect in one go.
Like Moondust , of course it is necessary to simulate, but the current technology is not mature enough to simulate the lunar dust environment underwater, so you can ignore it for now and wait until new technologies are available to simulate lunar dust underwater in the future. The base will be transformed," Chen Yuanguang said.
He continued: "At the end of this year, after the launch of Guangjia is completed, we will build four centrifugal gravity chambers in one of the modules. At that time, we can simulate the moon by adjusting its centrifugal force. environment, it will be nice to add a lunar dust simulation device to one of the centrifugal gravity chambers.”
The centrifugal gravity chamber, in short, uses the continuous rotation of the space station to create centrifugal force, which gives people the feeling of gravity. , so as to give humans a feeling of still being on earth.
Like the space station in Interstellar, it is a ring with multiple cabins connected together, and then continuously rotates to provide centrifugal force to the astronauts in the cabin.
But it’s just like the big turntable that people sit on in the amusement park. In fact, it is not an increase in gravity at all, but an uncomfortable feeling.
Just sitting on the rides for a minute will make you feel dizzy after you get off. Staying on the space station for several months, you have to experience constant rotation. If it feels similar to the big turntable on the amusement park, then It's definitely unbearable.
This is because if the centrifugal force device is not large enough, the force received by the person's head and feet is different, and people will feel dizzy when they feel the change of spatial position.
Therefore, the radius must be at least 111.7 meters to rotate, so that people will feel better in such a centrifugal gravity chamber. And the longer the entire radius, the better the experience will be.
This involves a trade-off.
"Yuan Guang, if there is no need to explore the lunar dust device, then the construction of the entire simulated lunar environment should be completed this year." said the leader of China Aerospace.
“Okay, my idea is that the sooner we start, the better, because this year you will intensively launch facilities to the moon and build a lunar base.
My idea is that we can Within this year, a Guangjia space station-lunar base recycling ecology will be built.
In the process from the early stages of lunar base construction to human astronauts landing on the moon, the HBM robot is still very important, and it involves. The construction integrity of the lunar base." Chen Yuanguang said.
The lunar base project planned by Laos and China this year is just to launch a complete space to a predetermined point.
Rather than sending a lot of materials up there and then completing the installation on the moon.
Only this year, in addition to the complete space, dense solar panels need to be laid around the predetermined points to provide power supply to the lunar base.
Paving solar panels can only be done by traditional robots, but if you want to expand the lunar base and build a rocket launch tower on the moon, it is not enough to continue to rely on traditional robots.
After two days, the core module of the Guangjia successfully entered the Lagrange point of the Earth-Moon system, the older generation of Amerikan astronauts were heartbroken.
Because the L1 of the Earth-Moon system was the first one they took a fancy to, but it was first boarded by the space station of Dongda University.
Reflection, must reflect.
Nowadays, there is a trend of reflection in Americen's academic circles. The main reason is to reflect on what happened to American and how it lost all its advantages in this competition.
Aerospace is the field that most directly reflects this gap.
When China's space station enters L1, the International Space Station has already entered the countdown to retirement.
You know, there are many engineers in Silicon Valley who have worked for NASA. Although they eventually left NASA, they still have a sense of pride in NASA. Including when they left NASA and joined Silicon Valley technology companies, their resumes at NASA were... It's an absolute plus.
In the past, Guangjia Aerospace launched recyclable rockets. This was what we had left. SpaceX could have launched it long ago.
Guangjia Aerospace uses room-temperature superconductivity to launch electric-powered rockets. This is because of room-temperature superconductivity. If we have room-temperature superconductivity, we can also do it.
This time back to L1, many people directly realized that the gap between us was widened by China.
“In this episode, we are going to have a relatively in-depth discussion. The difference from previous programs is that we are going to successfully enter the Lagrangian point 1 of the Earth-Moon system with the space station of Light Armor Spaceflight. Let's explore why we're falling behind.
Considering that I alone may not be able to think completely enough, I also specially invited my former colleague, who was also the former chief technology officer of NASA. After he joined NASA in 2010, NASA specially created this new position for him. : Chris Kemp
Different from me, I became a science popularization Youtuber after leaving NASA, and I have stayed away from the aerospace industry.
Chris Kemp founded a commercial aerospace agency, mainly engaged in recyclable rockets, and is still active on the front line of the aerospace industry.
Welcome Chris. "Mark Robb is a former NASA engineer. After leaving NASA, he specialized in making some interesting inventions and made videos and uploaded them to Youtube.
It's a bit like NASA's version of handcrafting.
Of course, he has never forgotten his previous job in the industry, and often made some popular science videos on space exploration.
This time he was obviously not as relaxed as in the past in the video, and his face showed a bit of heaviness.
Chris Kemp sitting on the other side of the sofa is somewhat similar. Everyone knows that this is a serious video.
Chris Kemp faced the camera and said hello: "Hello everyone, I'm Chris."
Mark clapped and then said:
"Yesterday at 11:33 a.m., the Guangjia, launched by a Chinese enterprise, successfully entered the predetermined position and became the first space station capable of launching to the Lagrange point L1 of the Earth-Moon system.
In No one in the media discussed this matter, and Elon’s congratulatory tweet about the Light Armor on Twitter has the lowest number of replies and likes among his recent tweets.
Highlights below. The like reply even asked Musk that he lives in Pennsylvania and if he votes for the Elephant Party in the election next year, will he still send US dollars?
No one cares about the significance of Guangjia.
On the contrary, there was some discussion in the aerospace-related section of Reddit.
But no one spoke of the significance and importance of this matter.
As a somewhat famous blogger, I hope to seriously discuss this matter with my audience.
First of all, what is the difference between the Guangjia Space Station and past space stations? The biggest difference is location. In the past, traditional space stations were in low-Earth orbit, only 250 miles away from the earth.
The distance of the Guangjia from the earth is 200,000 miles.
Just by this huge gap, everyone should be able to realize how difficult this is.
It takes two days just to get there.
As for the International Space Station, it only takes sixty minutes to launch into low-Earth orbit. The most time-consuming part is the docking. The fastest time from reaching the predetermined orbit to docking with the space station is three hours.
We can take a brief look. Using this comparison, our past space stations have not yet had the concept of being separated from the earth, while China's space station has taken a solid step towards the moon.
Guangjia is only 40,000 miles away from the moon. It will be closer to the moon than to the earth. ”
Mark drew the Earth, the Moon, the International Space Station and the Guangjia on the blackboard behind him.
It can be clearly seen that the International Space Station and the earth can be said to be connected together.
“Our past exploration of the moon has been very one-sided for a long time, and we have never carried out in-depth exploration of the moon.
After China has the Guangjia, , they can use the Guangjia to conduct a complete exploration of the moon, and even use the moon in a real sense
It is entirely possible that it can become a transportation hub for the moon.
I have always been curious. One thing is that NASA proposed in 2020 that we would build a space station in near-lunar orbit
The earliest plan was to complete the launch in 2024, and then the time was postponed to 2027 in 2024. Now it is already 2027, and we heard that our lunar space station will be postponed again.
The existing near-Earth International Space Station is about to be decommissioned.
America will not have any space station in space. This is an exaggeration.
So the first point I want to discuss is why the Chinese were able to complete their plan. The plan they made did not seem to leave enough redundant time for themselves. The launch of the Guangjia was It was proposed two years ago, and it took the Chinese only two years to send the Guangjia to the Lagrange point 20 miles away.
The time we set aside for the lunar space station was four years. Four years turned into seven years. It has still not been completed after seven years.
What is the reason that NASA can never complete it as scheduled, but China can always do it.
Whether it is China Aerospace or their commercial aerospace company, they can do this. I had similar signs when I was at NASA, and they seemed to get worse after I left NASA. Chris, what do you think of this? ”
Mark left NASA in 20 years, while Chris did not leave NASA until 2022.
While at NASA, Chris belongs to the upper echelon and Mark is just an ordinary engineer.
Although Mark now has a strong influence on Youtube, Mark and Chris are obviously far behind in terms of understanding of NASA.
Chris paused for a moment, his brain was organizing the language, and then said:
“Mark just talked about too many current situations, and I want to add some current situations.
The first is why the space station used to be only 250 miles away from the earth. This is mainly because this location is very suitable. It has no resistance from the atmosphere and can be indirectly protected by the earth's surface from space interference.
The most important thing is meteorites. In low-Earth orbit, they are protected by the earth's magnetic field and the moon.
And when you are in near-lunar orbit, you will often face the impact of meteorites sputtered from the moon's surface.
If it were a traditional space station, the degree of control provided by its Hall engine would make it absolutely impossible to evade.
The surface of the space station must have sufficient power and detection devices to avoid meteorite attacks.
Of course, another way is to prepare laser weapons on the space station and use laser weapons to destroy meteorites. This is also a way.
In short, to launch a space station into deep space, the existing space station structure is absolutely not enough. ”
Mark quickly asked: "Then do you think China's light armor adopts the former or the latter method?"
Chris replied: "From a technical perspective, I would think it is the latter, China China's electric drive engines are mature enough and can provide enough power to avoid meteorites.
But judging from their concept drawings, it should be the latter. Active avoidance will increase the size of the connector if it is too large. The probability of damage is higher, and the possibility of destroying meteorites with laser weapons is higher."
Mark realized: "If they can intercept meteorites, it means that they can use this technology to build an anti-missile system to intercept intercontinental weapons. ?”
Chris spread his hands: “This is something NASA needs to worry about, not us.
Laser weapons are mature enough. If I were to build their space station, I would use two bays at the front and the back to hold solid-state laser weapons.
In this way, the space station can be fully protected to ensure that it will not be affected by meteorites.
According to the information I have received, NASA is currently mainly stuck here. If you just launch satellites into near-lunar orbit, but there is no way to deal with meteorites, it will be useless.
You will be shot down by a rain of meteorites sooner or later when you launch.
Now there are two ways, one is to buy China’s electric drive technology, and the other is to send laser weapons up there to build a large enough space station.
Judging from the current news of NASA's continuous delays, it is obvious that they have chosen the latter. "Chris said.
Everyone knows very well that obtaining open source technology from Laos and China has to pay a lot of price.
If it were not to compete with China, the White House would even It doesn’t want to invest any more resources in aerospace.
So the White House will not make deals with China around electric drives.
“Even if it is to build a large space station, I think it will take seven years. There is enough time anyway, so why does NASA keep delaying the tickets, which is more serious than Blizzard delaying the tickets? ”
Chris said: "This involves problems within NASA, including many people leaving NASA for this reason.
NASA places too much emphasis on political correctness at the identity level, and such political correctness is seriously affecting our research. Progress. "
Two white men talked about the disadvantages of correct identity in front of the camera, which they would never have dared to do four years ago.
As for those who live in the White House now, restrictions in this regard have been relaxed.
“Take the Artemis project as an example. The first batch of astronauts to enter the near-lunar space station must include a female person of color.
You see, there has to be a woman, and it’s not enough to be a woman, she has to be a person of color.
Maybe after next year, she will have to add another layer of political correctness, and she may have to be transgender.
Such political correctness is not only reflected at the astronaut level, but also widely exists in the research field.
Like Vanessa, director of the Johnson Space Center.
I won’t talk about her identity as a black woman, let’s just talk about what she does. She is a bioengineering major. She first worked in the Food and Drug Administration, and later worked in NASA. She has always been doing medical care. and work related to aerospace materials.
Now let her lead an entire team responsible for the development of spacecraft to explore the moon and Mars, and when you see her in the news, she is always talking about how we should promote gender equality and racial equality.
There should be more women in STEM careers, more black people working at NASA, and more people of color and women of color in the technical field.
This is all she talks about on the show and in space forums, and I'm sorry, I'm not saying people of color or women can't do this.
But they should be hired because they meet NASA's needs, not because they are women of color, so they must meet NASA's needs. ”
STEM is the abbreviation of science, technology, engineering and mathematics, which is the science and engineering in the old American context.
After Chris finished speaking, Mark was just a spectator, and you were pointing the finger at Vanessa and NASA's internal political correctness. I can't go too far by adding more fuel to the fire.
Don’t you need these hot spots to make YouTube? White people will silently like this kind of content, and black people will curse it below. Isn’t it popular?
“It does sound bad,” Mark said.
“It’s not a little bad, it’s very bad!” Chris’ tone was full of dissatisfaction: “The Johnson Space Center has more than 10,000 engineers, and they are not managing the most important mission of Vanessa, the Orion spacecraft. Any progress.
In the past you only saw the Orion spacecraft delays again and again in the news
For example, the new spacesuit project requires a bidding process of US$3.5 billion, and the Johnson Space Center is fully capable of undertaking this task on its own. ”
Every time China Aerospace’s senior executives hear about NASA’s bidding, they will drool.
A US$3.5 billion spacesuit project? For US$300 million, we can help you get it done.
In many cases, it’s not that Chinese products cannot be sold at a high price, but that you don’t understand why Americen’s products are so expensive.
America spends money like this, and the U.S. debt is not worth it. It’s strange that they keep piling up year after year.
All projects involving government bidding and procurement are priced at astonishingly high prices.
What’s even more ridiculous is that Americen’s new spacesuit project started in 2007. The space walking experiments of Laos and China’s new spacesuits have been completed, but Americen’s new spacesuit has not yet been produced. Additional investment is still ongoing.
“I think excessive political correctness is the biggest factor hindering NASA.” Chris concluded.
After listening, Mark asked: "Isn't it a supplier?
I think suppliers are NASA's biggest problem.
As you said, the spacesuit was handed over to a total of 27 contractors, so there were constant delays. "
Of course Chris can't admit it. The biggest customer of his commercial aerospace agency is NASA.
To be precise, most of America's commercial aerospace companies rely on NASA to survive. If Without NASA to provide them with orders, they simply cannot survive with private orders alone.
Even in the face of commercial space agencies that provide commercial space tourism services to wealthy people, they also rely on NASA to provide space stations and aerospace. Give them the aircraft.
America's commercial aerospace agencies are far more dependent on government orders than China's commercial aerospace agencies.
"No, for the same spacecraft project, the progress and delivery quality handed over to SpaceX are superior to NASA's own."
(End of Chapter)