Chapter 13: Snow Pit

Style: Science Author: Wen Geng JunchiWords: 2618Update Time: 24/01/12 03:57:34
He Xin said: "I feel that we didn't talk about the key points and were just chatting, so everyone just followed their own ideas."

Chu Qian is talking about mapping network communication devices. Because that's what he's doing. From the initial ground detection to the later space detection. Tan Pu is talking about snow animals. He walked deeper in the snow-capped mountains. It's quite bold. Tang Jian is talking about traps. He has fallen into traps before. It was also he who detected an electromagnetic device nearby. Feng Jichao is talking about the villagers in the snow. He is more interested in traveling and skiing there. He Yushen was talking about retired Researcher Li. He originally wanted to follow Researcher Li to do this photon column research. After Researcher Li retired, he always lamented the changes in things and people.

Xiang Yu said: "Can we tell from the time? This system will probably take a year or two to build."

Instantaneous said: “They have all been working for many years.”

Feng Jichao worked for two years. Tang Jian worked for three years. Chu Qian worked for five years. Tan Pu worked for five years. He Yushen worked for six years.

Xiang Yu said, "Have you noticed any special things in their office?"

They thought about it and found that there were relatively few things in Chu Qian's house, three bookcases and a sled.

Behind the filing cabinet in Tan Pu's house, there are ice picks and ropes.

There are many things in Tang Jian's house, including many experimental instruments, long-range electromagnetic detectors, etc., as well as goggles and shovels.

Feng Jichao is a young man who loves sports. He has a sled and skates in the house.

Things in He Yushen's room were quite messy. Next to the big desk were binoculars and a snow shovel.

They wanted to see another snow mountain. Before setting off, Xiang Yu went to see Tang Jian and said, "Are you feeling better from your injury?"

Tang Jian said: "It's nothing serious. I used drugs to promote blood circulation, remove blood stasis, relieve pain and reduce swelling, mainly safflower oil and blood-activating and analgesic ointment."

Xiang Yu said: "Then you should rest first. Let's go to the snow-capped mountains and take a walk."

Tang Jian said: "Are you still going?"

Xiang Yu said: "Don't worry. We will be back soon. We have experience walking on snow and ice and climbing snow-capped mountains."

Instantaneous said: "I think this matter is still a bit complicated."

He Xin said: "What do you mean?"

Instantaneous said: "I think the one we found last time was not a receiving tool, but a tool for intercepting information."

He Xing said: "I thought it was just for receiving signals."

Instantaneous said: "In fact, it slows down the speed of light. It just modifies the signal after receiving it, and then transmits it to the receiver in Ice City."

Xiang Yu said, "Are there any other devices?"

He Xin said: "Let me get a small electromagnetic detection device. Let's go to the snow-capped mountains to have a look."

Before setting off, he called Duan Zhu and asked, "Duan Zhu, did you discover anything during your journey?"

Duan Zhu said: "Just look at the ski resort, skating rink, and farmhouses. They are all in the scenic area."

They passed the lake. The lake has been covered with ice, like a mirror, a clean floor, and a natural reflector. The shore is covered with crushed ice. White mist floats above the lake, adding a bit of mystery to the scenery. The ice in the distance shone with golden light under the sunlight.

He Xing said: "Don't walk on this lake yet." When water freezes, it will expand, and its volume will expand by about 9%. This shows that the water in the frozen state is not as dense as the liquid, resulting in ice and Between the water, there will be dangerous gaps.

For example, during the ice-up period of Lake Baikal, the ice layer on the lake was at most over 1 meter thick. Changes in temperature cause the lake water to continuously compress and expand, causing obvious cracks in the ice surface.

Therefore, when people see ice on the lake surface, they should check its safety and check its thickness at the edge to determine its safety.

An ice thickness of 12 centimeters is the safest, and even snowmobiles can drive on it. For walking on ice, a thickness of 9-10 cm is safe. If it is less than 9 cm, it is not suitable for activities on ice. Spotted ice may indicate special geothermal activity underwater, which is very dangerous. You must avoid such situations.

After walking along the lake for a while, we reached a clearing where the ice surface was covered with snow.

Duan Zhu asked: "Why was there no snow on the lake just now, but there is snow here?"

He Xin said: "I think it hasn't snowed recently and the lake has frozen. The snow that originally fell accumulated in the open space, so there is snow in the open space."

Duan Zhu said: "Is the ice here different?"

He Xing said: "It's different. We can see this kind of ice later."

They went to the clearing to find a stone, threw the stone, and made a hole in the ice. There was nothing underneath. Tie a rope to the tree and follow the rope down.

Duan Zhu asked: "What is this place originally? Is it grass or lake?"

Shunpin said: "Go down and take a look first."

He Xing said: "Can you take a look at how these deep pits were dug?"

Duan Zhu said: "Looking at the soil and stones on the far side, I think they were dug by an excavator."

Instantaneous said: "Of course not with a shovel."

Duan Zhu said: "The bottom of the pit is also relatively flat. It may have been crushed by a road roller or something like that."

Instantaneous said: "If you put a road roller in the pit, can the road roller still go up?"

Duan Zhu said: "There should be a slope to go up."

Instantaneous said: "It's an excavator and a road roller, shouldn't it cause a lot of noise? Didn't anyone notice it?"

He Xin said: "This place is relatively remote, and generally few people come here."

Shunpin said: "The partitions in the middle are the remaining partitions that originally had several pits. Or should we dig a big pit first and then put these partitions up again?"

Duan Zhu said: "These partitions were originally here, made of soil and stones. But the ground below looks very flat, and the place connected to the partitions is also very flat, as if the entire area is together. It was pressed out with a roller in one go.”

He Xing said: "It's impossible. These two are contradictory. Either the partition originally existed and the pit was dug first, or the area was flattened with a road roller first and then the partition was built."

Duan Zhu said: "These two situations may also exist at the same time."

He Xing said: "How can it exist at the same time? Wouldn't the roller hit the partition? Is the partition transparent and can go directly through the partition?"

Duan Zhu said: "No, the road surface may have been lowered by more than two meters first. The road roller drove on it and flattened the dirt and gravel. Then the road surface rose up again."

He Xin said: "Then how could the pavement at the bottom of the pit be lifted up? What was it that was lifted up? And these partitions have no supports, so why won't they fall down?"

Instantaneous said: "Did these partitions teleport to other places, wait until the ground is pressed down, and then teleport back."

Duan Zhu said: "Have you ever thought about how to clean up the dust next to the table?"

The dust next to the table legs and chair legs is difficult to clean with a broom and mop. This amounts to a sanitary dead zone. If you lift the table and chairs, they can be swept away at once. Sweeping can be made easier by moving all the furniture in a room to one side and then clearing it later.

Shunpin said: "There should be a suction cup to suck up all the tables and chairs, and then use this big mop to drag it across the ground from left to right in one go, and all the dust will be mopped up."

Duan Zhu said: "So the flattening here is similar. It feels like these partitions were lifted up, and then the rollers pressed over from left to right to flatten the ground."

Duan Zhu saw the ice falling on the ground. "What's with the ice up here?"

Duan Zhu picked up the pieces of ice and put them together. He kept them in his hands for a long time without melting. You can put several pieces of ice together like building blocks. The ice cube and the water next to it were left for a period of time, but they did not continue to grow. Condensed ice does not merge with other ice formed by water.

Use a lighter to burn it, and it will take a while for the frozen ice to melt.

He Xin said: "This is solidified ice, which is quite special."

Duan Zhu said: "Is this originally a grassland or a lake?"

Shunpin said: "I think it's a lake, and the bottom of the lake has been flattened. These snow pits were made."

Duan Zhu said: "What is this for?"

He Xin said: "It's like a trap, used for hunting."

Shunpin said: "But it's very strange. The top and bottom are flat, like a reflecting mirror."

Xiang Yu said: "Light can be reflected between the upper and lower layers."