Vol 10 Chapter 2713: Three materials

"The first is to ensure the flexibility of astronauts' activities, and the second is to keep warm!"
Keep warm?
Hearing Liu Zhidong's words, everyone was stunned.
They never expected that Liu Zhidong would say so.
Shouldn't it dissipate heat?
What the is this insulation now?
Forgive everyone for not reading, at this moment, they are all confused.
They never expected that Liu Zhidong would say such a thing.
Keep warm?
Why do you want to keep warm?
What we want is heat dissipation!
"Professor Liu, isn't what we need now is heat dissipation? What the is this heat preservation?" Zhang Donglai asked, based on the principle of asking if you don't understand.
He really couldn't figure out what was going on.
Liu Zhidong smiled slightly, did not speak, but looked at Qin Luo.
"Professor Qin should be able to understand what I meant by doing this?" Liu Zhidong asked with a smile.
intention?
Qin Luo guessed a little bit.
As far as Qin Luo felt, Liu Zhidong should have thought of coldness!
"Professor Liu, the reason why you chose thermal insulation materials was because you thought of absolute zero in the universe?" Qin Luo asked with a smile and squinted eyes.
There is not only high temperature in the universe, there is also absolute zero that is terrifying than high temperature and home.
Generally speaking, spacecraft, like WeChat, fly around the ground on a fixed orbit.
When it is out of direct sunlight, the temperature will be very high and can reach 400 degrees, and once it is out of the sun, the temperature will be extremely low, which can reach minus 273.15 degrees Celsius.
People can only persist for a few seconds in this environment, and they will be completely frozen.
So in the universe not only need to cool down, but also need to keep warm!
Only when cooling and keeping warm are appropriate, then China can realize manned spaceflight in the true sense.
"Yes!" Hearing Qin Luo's words, Liu Zhidong nodded solemnly.
"There is not only high temperature in the universe, but also absolute zero. If only the problem of high temperature is solved, it does not mean that manned spaceflight can be realized!"
Cooling and heat preservation are indispensable. Only when the two complement each other can the experiment be successful!
Hearing Liu Zhidong's words, everyone nodded quickly.
Although they don't want to admit it, what they have to admit is that Liu Zhidong's words are facts!
There are indeed extreme high temperatures and absolute zero in the universe.
None of them, including Zhang Donglai, had thought of it before, but now they thought of it.
"So, does Professor Liu have any good suggestions?" Zhang Donglai asked sincerely.
Suggest?
To be honest, Liu Zhidong smiled, he didn't know what to use.
But after pondering for a while, he said: "In the usual sense, thermal insulation materials are roughly divided into three types."
"One is an inorganic thermal insulation material, the other is an organic thermal insulation material, and there are also metal thermal insulation materials."
"Specifically, they have a good effect. I really haven't tried it, but it doesn't matter. We still have time. If we start the experiment now, I think we can get the result today!"
There are only three materials. If the materials are complete and everyone is working neatly, it will not take long to complete the test of the three materials.
If all goes well, the results will be available within a day.
Three materials? What are the three materials?