The surrounding temperature began to drop. Ye Qiong looked at the direction of the coal mine. The soldiers there should have rested. Before Ye Qiong came back, he gave Ye Tianlong special instructions.
If there is no snowstorm, don't go to the cave to spend the night for the time being. Before fully exploring the entire cave, the cave is an uncertain thing for them and has a certain degree of danger.
So to be on the safe side, the soldiers continued to sleep in snow caves.
Standing up from the stone city wall, Ye Qiong couldn't help but rub his hands. The cold winter nights on the snow star were really long, hard and very cold.
The cold is so unbearable that if you don't dig a snow hole in time and there is no fire source, your body will start to tremble soon. If you wear thinner clothes, you will easily freeze to death.
There are no down jackets or cotton clothes that can keep warm on Snow Star. Although the thermal insulation performance of animal skin is indeed good, it is not convenient. It is okay to wear one layer. Even if you wear an extra layer, the whole body will look very bloated, which will affect your movement.
After continuing to stretch his muscles for a while, Ye Qiong quickly ran back to the tribe.
From a distance, I saw the only light source in the tribe, which was inside the snow cave where Ye Qiong used to conduct experiments.
Ye Qiong was stunned for a moment. It seemed that Tang Ying and the others had already started doing experiments, so he did not plan to go back to where he slept, but ran towards the light source.
After walking in, I saw a lot of solidified grease on the stone table, which was contained in the utensils that Tang Ying took out in front of me. The middle position was made of linen silk as a wick.
There is a lamp burning in the middle of the stone table. Although it is not particularly bright, it is enough to see things in the dark night.
Ye Qiong picked it up and looked at it. There was a smell of meat floating in the air. There was no way to avoid this. After all, it was extracted from animal fat.
"Well... it looks pretty good. Let's go back and rest first. Leave one person to watch the night and help me calculate how long a lamp of such a large size can burn." Ye Qiong looked at Tang Ying and the remaining few people.
A middle-aged woman said.
Although they have reached middle age, they have maintained their figures very well. In addition, the humans on the Snow Planet are originally very white. The soldiers will be slightly darker due to the wind and sun. It is not good to stay in the snow cave every day.
Women who go out have very fair skin.
Moreover, the lifespan of humans on Snow Planet is very long. A woman in her thirties still has a long period of youth.
In the summer, they dress more boldly. A tight-fitting animal skin dress is enough, but in the winter, they are wrapped more tightly because they are all afraid of the cold. There is no heating in the tribe, so they don't need it.
No matter what kind of work I was doing, I didn't need to use my limbs easily, so I wrapped them very thickly.
After Tang Ying nodded, Ye Qiong turned around and walked out. He was too lazy to care about how to arrange this kind of thing, as long as he recorded the data tomorrow.
After returning to his snow cave, Ye Qiong slept until dawn, and then ran to the snow cave laboratory to ask about the data.
The lamp that burned yesterday was five centimeters wide, seven centimeters long and three centimeters high. It burned for a total of two and a half hours.
Ye Qiong looked at the data recorded by one of the women last night and nodded with satisfaction. It looked pretty good. If the wick is made thinner and the capacity is expanded, the burning time can be doubled.
Increase.
Five soldiers were arranged to connect with Tang Ying and others, pack the prepared solid grease in wooden barrels, and then transport it to the coal mine.
Three days later, ten barrels of solid oil were stored in the cave. The five soldiers who sent the oil had another task, which was to transport the fat-rich marine ice sculpture corpses back and hand the meat over to the tribe who was responsible for cutting and cooling it.
It is dried into meat, and the fat is handed over to the woman in the laboratory to extract solid oil.
Ye Qiong stood at the entrance of the cave, looking at the ten full buckets of solid grease, and then called Ronling over. Along with Ronling, there were ten soldiers who stood in line.
Instead of plunging headlong into the depths of the cave, Ye Qiong chose the safest method, which was to explore bit by bit.
Starting from the outermost periphery, Ye Qiong will place a barrel of solid grease on the ground every twenty meters. After hanging the entire barrel, it will be a grease lamp. The barrel is processed and is very slender, with a width of only
Ten centimeters, but the height when placed on the ground is one and a half meters.
The gravity on the snow star is very strong, so the penetration effect is also very strong. In order to allow the light source to be dispersed well, the wooden barrels designed by Ye Qiong are slender.
Ten wooden barrels can travel a distance of two hundred meters. For a cave, it is actually a long distance, but for the Dinglong Mountains, it is nothing...
Ye Qiong held a torch in his hand and led Ronngling and the others into the cave.
Each soldier held a wooden barrel in his hand, and every twenty meters he walked, he put one down and lit it.
After calculation, according to the burning consumption recorded in the previous grease records, the burning time of these wooden barrels can reach 180 hours, about eight days.
The entire wooden barrel can also play a very good role in insulation, allowing the top layer of grease inside to dissolve into liquid and then be penetrated.
It was okay at first, but as we gradually went deeper into the cave, everyone's heartbeats slowly began to accelerate.
Ye Qiong carried out several cave rescue missions in his previous life, and also visited some ancient tomb ruins, but the experience was different from now. Although it was still an unfathomable cave, on the earth in his previous life, inside Ye Qiong's hand
He was carrying a semi-automatic rifle, and he knew in his heart that no matter how deep he went, nothing would come out.
The caves on Snow Planet are different. There are too many unknown areas that humans have not explored, and there are countless creatures that humans have never come into contact with.
So now Ye Qiong himself began to become nervous. The entire cave was very quiet, as if he could hear the heartbeats of everyone.
The further you go in, the larger the cross-sectional area of the cave becomes, and some stalactites begin to appear in the middle.
And the temperature is slowly rising now.
After walking forward for about a hundred meters, half of the barrel grease lamps were placed in front of the wall. There was a light source behind them, but after turning around, it was dark again.
Where Ye Qiong and the others are now, the cross-section is about ten meters wide and twenty meters high.
A team of more than a dozen people walked inside without feeling crowded at all, and the temperature also rose a lot. Ye Qiong estimated that if they walked inside for a while, the temperature might rise above zero degrees Celsius.