Sliding to the opposite side smoothly, Bifang waved to his companions behind him.
"MY GOD." Jarrett came to the edge of the crack. As soon as he raised his head and looked down, his legs went weak, and his hands began to make crosses in front of his chest.
"Come on, don't be afraid. Look, the rope is nailed very firmly, and there is a safety rope. Even if you let go, you won't fall, as long as you move properly." Bi Fang grabbed the long rope and kept shaking it.
The spike was motionless.
Every climbing season, the Sherpas repair the roads on the glacier, set up ladders, drill holes in the glacier, drive forearm-long nails, and tie long ropes to facilitate climbers.
It is their source of income and their job, and people die from it almost every year.
Here, Sherpas have almost become a consumable.
Jarrett tremblingly wrapped the safety rope around his body and tied it up. Looking at the bottomless abyss, he felt that his brain was even more deprived of oxygen. He grabbed the ascender. Yao Jun behind him took a look and pushed it.
"ah!!!"
"Okay, okay, you're already here. Stop shouting. It'll be really troublesome if there's an avalanche."
"Ah, uh, huh?" Jarrett opened his eyes blankly and stepped on the solid ice, which seemed unreal.
Looking at the glacier behind him, Jarrett suddenly felt proud. The Khumbu Glacier was just like this. As soon as he closed his eyes and opened them, wouldn't it pass?
When all the people behind came over one after another, Rob breathed a sigh of relief and clapped his hands and said: "Okay, this is the first glacier we have crossed. It's very simple, but there are hundreds of others waiting behind us.
We! We must not let down our guard!"
Hundreds or thousands?
"."
"Is there really no other way?" Jarrett ran over and grabbed Bifang's arm.
"Really not, and look at it." Bi Fang pointed out the towering hanging glacier not far away, as well as Nuptse Peak and the huge Mount Everest that were faintly visible on both sides of the glacier. The thought of climbing these peaks made him excited.
It makes people feel a lot of pressure.
"These hanging glaciers, Nuptse Peak and Mount Everest are too close to us. The snow on them is very thick. They may collapse if they shake even slightly, so it's best not to scream next time. Just endure it as much as you can. It's very difficult."
It’s dangerous, there will be an avalanche.”
Jarrett: “o(╥﹏╥)o”
[Jerrett: I’m stupid for hearing this]
[The fake Khumbu Glacier, a big crack with no bottom, the real Khumbu Glacier, there are hundreds of them like this!]
[I fucking thought the Khumbu Glacier was just this crack, and I was also curious about why so many people died here... shouldn't the pit be filled with so many deaths...]
[Glacier: I've been filled up]
【Hey】
[No, if the glacier moves every day, then don’t the Sherpas have to come up every day to repair it?]
"This is true in theory, but in practice it is very difficult, so many times climbers will encounter situations where there is no road. At this time, we have to build our own ladders. Do you see my backpack?"
Bi Fang put down his backpack for everyone to see. They were surprised to find that a long telescopic ladder was stuffed between the straps and the bag. Not to mention that the whole bag looked stiff and very straight!
"This is a telescopic ladder. It is only one meter long when folded, but it is actually four meters long when unfolded. Once we encounter a place without roads, we need to put up the ladder and go over. Because it is not fixed, this
That’s where the real danger lies.”
"Mount Everest has very, very high requirements for equipment. In many places, aerospace-grade materials are even used, just like this ordinary mountaineering ladder. First of all, we must ensure that the materials can work at extremely low temperatures.
Many steel materials will become brittle at low temperatures. For example, Q345E can only withstand the impact of minus 40 degrees. If it is lower, it will become brittle and cannot be used. The lowest temperature on Mount Everest can be close to minus 50 degrees! Therefore, it is necessary to choose anti-
Better aluminum for low temperatures.”
Bi Fang took a breath and calmed down, and continued: "Secondly, we must reduce the weight while ensuring the structural strength as much as possible, so titanium cannot be chosen. The weight of titanium is twice that of aluminum. The specific strength of aluminum is already high enough.
The third is structural design. The more complex the design, the easier it is to break. Even a telescopic design may become a fatal factor in the Everest environment, so the design of the connection must be as simple as possible."
In addition to tickets, equipment is also one of the major items.
Just a bottle of oxygen, plus mountain freight, can cost up to 500 U.S. dollars.
Many people can't even take a breath of oxygen on Mount Everest with a month's salary.
There are also down jackets. The outer layer is windproof and waterproof. It needs to remain soft even in severe cold conditions and be as light as possible.
The zipper needs to be designed with fully-pressed tape and waterproof strips to ensure that it can be opened and closed smoothly when wearing thick gloves; the inside is filled with duck down or goose down, and the down content must be at least 90% to withstand minus 30+℃ in strong winds.
of low temperature.
"There are also mountaineering boots specially designed for altitudes above 8,000 meters. The weight of the pair I am wearing is 1,413 grams... Running shoes are generally 300g, and most ordinary outdoor hiking boots only weigh 500 to 800g. When climbing snowy mountains, you are afraid of frostbite. There are many
Climbers are forced to have their limbs amputated after going down the mountain because the limbs have been frozen to death. The warmth of the shoes is very important. My pair is not so much a pair of shoes as a set of shoes and boots, with outer boots, inner boots and legs.
The cover adds an insole and an outermost outsole; this makes it completely unable to bend like ordinary shoes, and the feet and calves have the feeling of being firmly trapped.”
Bi Fang lifted up his trouser legs and showed his thick boots to everyone.
They are simply a huge thickened version of snow boots. They are connected together as a whole and seem to have very poor flexibility.
There is no other way, you have to make necessary sacrifices for warmth.
In his previous life, Deye failed to take adequate measures to survive in an extremely cold area, which resulted in necrosis of his toes and had to be amputated. At that time, Bi Fang's eyelids were twitching wildly, and his entire toes were extremely swollen from the cold.
"Frostbite is cold at first. When the tissues gradually freeze to death, you will feel pain and stinging. Because your tissue fluid is freezing, the blood turns into ice crystals and pierces the cell membrane, exploding the entire cell.
.
This is an irreversible process. Even if you recover, the cells cannot regain their vitality, but they are still recoverable because your cells will still reproduce. But when the degree of necrosis is too high and even the nerves are damaged,
It would have to be amputated.
Your toe is completely unrecoverable at this time. It is just a piece of frozen meat attached to your body. When you return to a warm place, it will become a piece of rotten meat. If it is not removed, your entire right leg and even your life will be destroyed.
Everyone will be threatened.”
Yao Jun listened carefully on the side, but as he listened, he felt his toes getting cold. He looked down and saw that fortunately his toes were still there.
Bastard, that's an amputation, can you please stop talking so lightly!
"However, there is no road that is longer than your feet, and there is no mountain that is higher than a person, except at high altitudes and the North and South Poles. Under normal circumstances, wearing these can really kill people."
Bi Fang smiled and stepped across a small crack. This crack was only half a meter wide. It looked like it had just appeared and was still very young. Perhaps after ten years, it would grow into a large glacier.
[I was told how much these equipments cost, which made me give up]
[I found the same model on Amazon...$6,000...]
[It’s less than 40,000, well, it’s much cheaper than I thought]
【The boss appears!】
[Express delivery will be delivered under Big Ben, and will be delivered under the top.]
[Learned again, discovered one of Fang Shen’s hidden professions, material mechanics! Take a notebook and write it down, astrologer, zoologist. Add a material scientist. 】
[So if there is anything else that Fang doesn’t know, tell him once and for all, and let me slash his butt with a knife to open his eyes]
Bi Fang smiled: "Yes, I actually don't know many things, such as why ice is so slippery."
Why is ice so slippery?
Fang Shen doesn’t know?
Question marks appeared on the faces of the audience, are you kidding me?
Tony thought this was a simple question, because it was ice, so it was slippery, but when these words came out of Fang Shen's mouth, he felt that it was not that simple. Tony raised his head and looked at his friend Peter, whom he had not seen for a long time.
.
"Peter, why is the ice so slippery?"
Peter bit his pen and didn't hear what Tony said at all. Since Fang Shen gave him a word of encouragement last time, his mind has been wandering. He has been conducting outdoor research and didn't even watch Fang Shen's live broadcast.
We even specially set up a migratory bird website. Although there is not much traffic at the moment, it is indeed a good start. We have also contacted the migratory bird protection organization and updated it all the time.
This year it will be time for those migratory birds to return, and a large number of them are already on their way.
Hey, I wonder if it will be smoother this time. Those damn poachers should have been dead long ago.
"Peter? Peter!"
"Uh, huh?" Tony shouted several times, and Peter woke up suddenly, only to find that his partner was talking to him.
"What's wrong?"
Tony put his hand on his forehead: "What's wrong with you recently? I remember that you like to watch God Fang's live broadcast the most? You haven't been online to chase stars the last two times. Something is wrong, something is very wrong. You are not in love, are you?
?Is it Mary from Class 3, or Gwen from next door? It can’t be Mary, but she’s too cool, you might not be able to play with her.”
Peter twitched the corner of his mouth, "What does this mean?" He and Mary had a completely friendly exchange. We are all wild goose lovers, so we didn't mean anything like that.
By the way, there was also a photo album to give to her. Tony had forgotten about it, and he would give it to Mary after Tony left in the evening. She seemed to have a cold, so she probably wouldn't be able to go out. She really should drink more hot water.
.
"Hey? Why are you in a daze again?" Tony waved his hand in front of Peter's eyes.
"Uh, okay, what's the matter?"
"Why is ice so slippery?" Peter bit his finger and hesitated for a while, "Because it is ice?"
"fool!"
[Because this thing is a fucking unsolved mystery in the world!]
【?Real or fake,,,is this thing an unsolved mystery? 】
[Isn’t it because the surface is smooth? 】
Bi Fang laughed, but the next moment he choked and coughed twice.
Damn, I'm starting to feel hypoxic too.
"If you are interested in this issue, you can search online for yourself. However, this thing is indeed an unsolved mystery. Ice is slippery because there is a layer of water film on it, which acts as lubricant. And no matter how low the temperature is, the water film will
It exists, but the molecular structure is not that of ordinary water. As for why, the scientific community still doesn’t know.”
“When traveling in broken glaciers, when you encounter a crack in the ice that needs to be crossed, try to step on the front end of the mountain boots to the edge of the crack, see clearly the edge of the crack on the other side, and stride across without hesitation.
It is best to string everyone together with a rope, so that if someone accidentally falls into a crevice in the ice, he can be pulled up without any danger, but this requires everyone in the team to be more efficient in execution.
High, otherwise there may be too many in one area and it will be impossible to pull them out no matter how hard they are pulled.”
After walking for more than half an hour, everyone kept crossing large and small cracks.
All the viewers in the live broadcast room were frightened, especially as the further back went, all kinds of glaciers appeared.
Not all glaciers can be easily crossed with a rope. After all, you are climbing a mountain, not descending. There are only a very small number of such glaciers. Most of them are high in the front and low in the back. It is difficult to pass by rappelling. You need to pull.
Climbing up with the rope is like climbing the steps of a giant.
If there is a crack at the bottom, it will be even more dangerous. Two ladders are tied together and hung at both ends. If you climb up from below, you can only hope that your teammates are reliable enough to help you stabilize.
When this happens, Bi Fang is always the first to get up. This is the most dangerous, because you don't know whether the ropes tied to the ladder are loose. When Bi Fang gets up, you can conduct a second inspection and reinforcement.
"My life is in your hands. Help me take care of it."
"Don't worry." Yao Jun gestured OK, "I will pee in the wind without holding on to the wall, so I will hold on to you!"
Bi Fang cursed with a smile and put his backpack on the ground.
"When climbing a ladder, it's best to go up lightly, so that your center of gravity is more stable. Once you're up, you can use a rope to pull the bag up. Although it's more troublesome, it's safer."
I thought the weight was too light, and the ladder was made of two ladders tied together. Under the cold wind, the whole ladder seemed a little shaky and kept shaking.
When Bifang stepped on it and came directly above the abyss, the drone also came to the sky above his head.
At an altitude of nearly 6,000 meters, coupled with the cold wind, even the drone was already shaky, and the shaking of the camera intensified the tension and horror of the entire operation.
On the swaying long ladder, Bi Fang walked alone above the abyss, above the earth and under the sky, heading towards the snow-capped mountains.
Suddenly, Yao Jun sneezed suddenly, and the long ladder shook suddenly.
Bi Fang immediately hugged the long ladder tightly. Yao Jun also knew that he was in trouble and hurriedly held on to the ladder. But before the ladder was stable, Yao Jun opened his mouth wide and made a whooshing sound unconsciously.
The howling cold wind was mixed with some strange sounds.
Bi Fang hugged the long ladder tightly and looked around. He felt the danger, and his back went cold. The long ladder under him began to tremble, not because of the wind, but because of the vibration!
The tremors gradually intensified, and the newly fallen snow slid on the ice. Everyone also noticed the abnormality and looked around nervously.
"Avalanche! Rob! It's an avalanche!"
Bi Fang pointed to the top of the snow peak and roared.