Yao Jun shrugged his nose, but couldn't smell anything. The weather was too cold, and every breath felt like a knife was cutting back and forth in his nasal cavity. If it smelled like blood, it was his own blood.
"Are the detectors responding?"
Bi Fang adjusted the detector again, but there was no response.
Yao Jun touched his head strangely: "No response. Is there anyone nearby?"
"Maybe the detector was lost, or maybe the other party wasn't prepared, but I did smell the smell of blood, it was very strong."
"But I didn't smell anything." Yao Jun sniffed vigorously, but there was still nothing. "It's such a cold day, even the blood is frozen, right? The smell can be wafted out? Dog nose, right?"
"Don't ask, asking is talent." Bi Fang didn't explain much, and with a more cautious attitude, he trotted over following the smell in the air.
When crossing a small slope, Bi Fang shrank his right foot sharply and stopped Yao Jun and Jarrett behind him.
"Be careful, there is a glacier."
As he spoke, he stretched out his hiking pole and poked it on the snowdrift in front of him. Under the weak force, the snow slope collapsed quickly, splashing countless white smoke and dust. Under the sunlight, a bottomless blue glacier appeared.
In front of everyone.
The audience was stunned. They only looked at the snowy slope in front of Bi Fang, and there was no sign at all. If they were ordinary people, wouldn't they stop eating immediately after stepping down?
How the hell did Fang Shen figure it out without any warning?
[Holy shit, how the hell did you discover this? 】
[X-ray, Fang Shen used X-ray!]
[What the hell is x-ray? Have I walked into the science fiction channel? Is this the river? 】
[New fans don’t know, Lao Fang is our country’s secret weapon. He has undergone physical transformation and his eyes can shoot
Fang Shen!】
[Can’t you hide the ultimate weapon anymore? 】
"Of course you can't tell just by looking at the pile of snow in front of you, but you should take a longer view."
After hearing Bi Fang's words, the photographer at the base camp immediately flew a drone high to take pictures of the hillside. With an infinitely wide field of view and good lighting conditions, everyone finally saw the difference.
On the snow slope, another scar-like snow line is slightly raised, leaving some shadows under the sunlight. Although it is very shallow, it becomes conspicuous once the line of sight is widened.
"It is difficult to find glaciers covered by snow. Many people are buried every year because of such glaciers. However, a wider field of view can form a more comprehensive understanding. When such a streamline appears in front of you,
You need to be more vigilant about the snow line. In addition to the snow line, you can also judge it by the color."
Bi Fang grabbed a handful of snow from the edge of the crack, took a few steps back and placed it on the ground.
The audience's eyes widened, and after careful comparison, they slowly discovered that the snow at the edge of the crack was darker?
[The snow at the edge of the crack is darker? Is this an illusion? 】
"It's not an illusion. We call these glacial crevasses covered by snow dark crevices. In addition to being slightly lower than the surroundings and shadow lines that can be observed from high altitude during the day, we can identify them by the color of the snow. The cracks on the dark crevices are
The color of the snow will be slightly yellow or black."
"Is it so magical? What's the principle?" Yao Jun listened with interest, grabbed a handful of snow and licked it.
Don't you feel any difference?
Same ice teeth.
Bi Fang chuckled: "Guess what?"
"If I knew, I wouldn't be following you."
"It's the specific heat capacity." Bi Fang patted the snow in his hand. "Under the crack is air that cannot circulate. The specific heat capacity is larger than that of the rock. The temperature difference causes the ice crystal rate and density of the snow to be different. The refractive index changes and the color becomes darker.
Already."
what?
The audience was stunned.
[I had already thought that Bi Fang knew a lot, but to my surprise, I still underestimated him.]
[Specific heat capacity, damn, I will never be able to figure out the reason for the rest of my life..]
[Is this the boss, trembling]
Bi Fang walked along the glacier crevices, trying to find whether there were any aluminum ladders left by the Sherpas.
"Generally, the depth of glacier cracks is 25-30 meters. This is obviously deeper. The ice layer beyond this depth is stronger. The further down, the ice crystals will become larger and larger, and the adhesion will become stronger and stronger. When trying to make it
When separated by pressure, its internal structure will become tighter due to pressure, and its appearance will look like thick cream or syrup."
"In fact, the best way to cross the glacier is to go around it. It is much safer to go around in a circle than to cross over. The next best option is to choose a snow bridge. The deep snow in winter will become hard under the strong wind and may form
The snow bridge over the crevasse will not melt until summer. There is also a more solid snow bridge, but that is no longer a snow bridge, it is an elongated isthmus connecting two crevasses."
【What is the isthmus?】
[It is a narrow landmass that connects two continents, such as the Isthmus of Panama between the South American continent and the North American continent. That is a typical isthmus, but the isthmus connecting the ice seam is relatively rare, at least I have never seen it]
【Brother Bullfrog, what are you doing?】
[Geological prospector, when I woke up this morning, my colleague told me that there was a great person who live broadcasted an avalanche and performed a textbook-style self-rescue. I was curious and came over to have a look. The anchor is really awesome. Although I only watched it for a short time, he was very professional and had some knowledge.
I don’t even know.]
Lao Deng stroked his glasses and typed this sentence on the computer.
The color of the snow on the dark crevices of the glacier will be darker, and the reason is because of the specific heat capacity. Although he has not been working for a long time, and his main direction is not glaciers, he still knows more about it than ordinary people. This kind of knowledge really opened his eyes.
I flew to Mount Everest to study the impulse of glaciers.
"This phenomenon cannot be discovered through simple research and investigation, but requires a lot of experience accumulation. Where did this guy come from?"
[Everyone is watching the live broadcast. A big hacker showed up yesterday, and a geological prospector showed up today]
[Weren’t there biology and history professors before (dog head)]
【"Thriving"!】
Unfortunately, Bifang did not find the aluminum bridge left by the Sherpas, but only found the nail holes left next to the glacier. The aluminum bridge must have been washed away by the avalanche last night.
But luckily, Bi Fang found a snow bridge.
It's very wide and thick, and it looks like a road has been built.
"When you encounter a snow bridge, you should carefully observe it from the side before stepping on it. The hole must not be thin, and then try to walk up to detect it on the spot. You must be careful. If there is a team member, ask the team members to stand aside to ensure the posture and tighten the rope to prevent snow.
The bridge suddenly broke and fell into the crack. After the first team member passed, the other team members could strictly follow the footsteps of the leader after another team member tightened the rope to ensure it."
"The strength of a snow bridge is mainly affected by temperature. In cold winter or early morning, a snow bridge may be strong enough to support a truck. After the snow melts in the afternoon, it may not even be able to support its own weight. You must be vigilant every time you cross a snow bridge.
"Just because you can pass safely in the morning does not prove that you can pass safely in the afternoon."
"Tighten it up." Bifang turned to Yao Jun and Jarrett.
The two nodded and lowered their centers of gravity at the same time, with their crampons firmly embedded in the ice.
Bi Fang took a deep breath and was about to step out when a bloody hand pressed on the ice a few meters away from the edge of the glacier. The blood quickly condensed into bloody fingerprints and sharp ice crystals grew.