The expedition team of more than 500 people carried more than 800 horses. The team of such a large scale was now gathering together and watching the five big guards sticking out their butts and digging snow nests.

Gordon had a round eyes. He was a British engineer and had a natural interest in civil engineering, but he had never been exposed to cold zone combat training. He had no idea what these people were doing.

But when he heard that such a snow nest was a compulsory subject for the Chinese special forces, he immediately put away all his doubts and began to record and draw with a pencil.

At this moment, even the weak Samuel Baker, the experienced explorer, became interested. He asked someone to bring the sled over and lay on it and watched Guan Lu and the others work quietly.

The snow in Mazong Mountain is half a meter thick at this moment. This thickness is enough to cut into pieces of snow bricks. Each snow nest can allow two team members to lie down side by side, heads to the northwest and southeast, and the snow nests can have a thirty-degree inclination.

After digging such a snow bed, you can then cover it with snow bricks, build them up piece by piece, and use loose snow to outline the gaps.

"When we were training, we heard from the Head of State that snow is the best insulation material... We didn't believe it at first, but the actual effect was amazing. The Head of State did not lie to us..."

"The winter outside the pass is colder than here. Once the white-haired wind blows, even wild wolves, blind bears, etc. will not dare to go out in the second half of the night..."

"But just dig out the snow nest and light two candles inside, then the temperature can be increased... It has been measured with a foreign thermometer, and even the temperature in the snow nest can reach zero..."

Samuel Baker asked tremblingly, "Don't the temperature above zero melt the snow? Didn't the snow nest collapse?"

"No... How small candles are, as long as you don't burn the snow bricks and light them in the middle of the snow nest, the snow bricks will not melt at zero or two degrees..."

"Even this temperature will slightly melt a little snow bricks, forming a thin layer of ice shell on the surface of the snow bricks... This layer of ice shell can better block the cold wind that seeps in from outside..."

Seeing that the cover of the snow nest had gradually closed, Gordon put down his pencil and asked, "I found that you dug up an inclination of about thirty degrees, and there was still an upward turn at the entrance... Why is that?"

"It's very simple! Because the heat goes up..." Doro never thought in his life that he, a guard from the Qing Dynasty, could explain natural science to foreign devils.

At this moment, he would no longer complain about the boring science courses in Ryukyu, simple disciplines that combine simple physics, chemistry, mathematics, geography, astronomy, etc., and the head of state named science.

It is in such a class that people like Doro and Guan Lu actually knew the attraction of the earth, the principle of hot air upward, and the principle of heat conduction, and they could even explain why the quilt can keep warm.

Imagine your first half of my life, and everyone in Sijiu City, including the emperor, thinks that the quilt can warm yourself.

Only after taking science classes did Doro and others realize that the quilt would not heat up on their own. The fundamental reason why people feel warm is that the cotton grid blocks the loss of heat in the human body.

It is very easy to dig a snow nest, but if you want to explain the truth clearly, you really need to have a basic foundation of natural science.

"Heat goes upwards, so the snow nest should have an inclined angle, the entrance should be at the lowest point, and people are curled up at the high point!"

"In this way, will the temperature of a person's body temperature and candles be all buried in this snow nest? The cold air outside cannot convection with the warm air inside... Wouldn't we be saved!"

Oh... Gordon slapped his forehead, "So that's it. I understand. This snow nest is really scientific... Do you understand?"

"Two people are in a group, quickly choose their own position and dig a snow nest... The animals are concentrated behind the leeward rock wall to keep warm!"

"It's three:30 p.m.... Before dark, we must ensure that everyone can get into the snow nest... God bless you, finally found a way to stay warm without a bonfire..."

The Gobi Desert in Mazong Mountain suddenly became busy, and the expedition members chose a good location and began to get busy. Under the command of Doro and Guan Lu, the simple and rough but definitely life-saving snow nests were dug out.

There was not enough fuel waste. Only patients in the entire expedition were qualified to drink some hot water. There was only one bonfire in the entire camp to burn some life-saving boiling water. The rest of the people went into the snow nest to eat cold cakes.

Guan Lu and Doro carefully got into the snow nest, curled up and lit two butter candles, and the snow nest suddenly became brighter.

The hard naan is as hard as a brick and bake on a candle. It will be broken down and put into your mouth after a little warmth. You can't even bite it with your teeth. You can only hold this naan and wait until it becomes soft before chewing it.

"Doro... do you know what I want to eat now? Old tofu... I want the tenderest tofu brain in one go..."

"I just drink openly, I don't need to chew it with my teeth... I can no longer eat hard food!"

"Stop talking, I'm so greedy, there are also rotten meat noodles, door nail cakes, fried cakes, big fried dough sticks, oil tea... Woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo woo w

People's emotions have limits. Even if the men reach the extreme of their emotions, they will cry. Anyway, there are only two people in the snow nest, so it is not embarrassing not to say anything.

Holding the cold naan, the two wiped their tears for a long time. After their emotions were released, they heard that the northwest wind outside was three more violent than during the day.

The wind of level 7 or 8 was raging on Ma Zhui Mountain. The wind swept with snowflakes and rushed towards these snow nests. As the sun sets, the temperature at night is getting lower and lower.

Gordon hid in the snow nest to take care of Samuel Baker. When the strong wind blew, he stretched out the expedition's specially made mercury thermometer, released it from the entrance for ten minutes before pulling it in and starting to record the temperature.

He measured it every half an hour, and he found that within just two hours after dark, the temperature dropped from minus 16 degrees Celsius during the day to minus 30 degrees Celsius!

"God! This snow nest really works... The temperature inside is now minus 2 degrees Celsius, and we are not cold at all when we are wrapped in fur..."

"A miracle of the Chinese! How did they come up with such a solution..."

Samuel Beck looked at Gordon recording in his notebook, muttering, saying, "Actually, these experiences are not new. The Eskimos in North America and the ethnic groups in the Far East of Russia all have such snow houses..."

"It's just that we haven't focused on research before! But it gave the Chinese people the first..."
Chapter completed!