"Actually, some people say that the red-haired prototype in One Piece is the red-haired Eric, I don't know about this, it's hearsay, just listen to it."

Bi Fang took a breath.

It was too tiring to walk on the ice field, and for safety, he couldn't walk too fast, otherwise the possibility of falling would be greatly increased.

And standing on the unobstructed ice field, you can clearly feel that the heat of the body is being taken away, even if the amount of exercise is not large at all, the physical exertion is not small at all.

"In the polar regions, it's important to cover your whole body to protect yourself from the cold and strong winds, especially your head and feet, and don't stop."

"We have energy reserves in our body, that is, fat, and by consuming fat, we can also produce caloric value, so I have been eating high-calorie foods these days, milk tea as water, doughnuts as rice, and cheese as seasoning, just to gain weight."

[Hey, I said, I vaguely feel that Lao Fang has gained a lot of weight]

[Good guy, this food ...... Eat a meal of ten pounds of weight]

Bi Fang sighed, and he didn't feel warmth on his face at all.

The sun's rays have made the temperature rise a lot, about minus 35 or more, but it is still very cold, and the huge temperature difference is like a giant pump, draining all the heat, full of horsepower.

"The best thing to do is to keep moving around to keep your blood circulating and avoid sweating from excessive exercise."

"If you start to sweat, be sure to loosen your clothes and ventilate in time, if you get soaked with sweat, it will reduce the warmth effect. At the same time, it is important to keep the clothes clean, as dust and grease will block the gaps in the clothes and reduce the effect of insulating cold air. ”

After nearly four hours of walking, the surroundings were still empty.

Bi Fang stopped in place, he looked around, at this time the sun had come to the highest point, but it was still very low, as if it could not rise, it made people feel that thirty degrees was enough to choke in the past.

"I can't go any further, the ice field is bigger than I thought, maybe not just two days, maybe three days, and now that the temperature is relatively high, we have to stop and prepare how to spend the night."

The width of the ice sheet is larger than Bi Fang imagined, and every summer is when the sea ice melts, and it starts to freeze in the autumn, but it seems that this year's sea ice freezes very quickly, and maybe this winter will be even colder.

"The weather was actually pretty good today, you see, the air visibility was very good." Bi Fang pointed around.

Indeed, the air here is frighteningly clean, except for the knife-cold sea ice, which stretches as far as the eye can see, and is pale blue and pure white, and warm yellow sunlight.

The world is very elegant.

"If you're forced, for example, in a plane crash, or for some other reason, you're in the situation where I'm now, that's the best time to call for help, and the techniques for this are similar to those for rescue in the mountains."

"Bright colors and linear-shaped shapes are easy to spot from the air. Even a piece of black clothing can be seen from a long distance on the snow with no grass. ”

"Burning animal fat produces smoke. You can also draw markers on snow and ice with ash and burnt debris, so don't skimp on your expensive calfskin belt. ”

"Search and rescue flights can only be carried out in weather conditions that are certain to be good, so you need to be prepared. Helicopters are unlikely to come to your rescue in a blizzard, unless you have the daughter of a Fortune 500 entrepreneur on your team. ”

Bi Fang made a joke, and still remembers that the second time he broadcast live, someone questioned the unreasonable rescue speed, which was a director's drama.

In fact, it can only be said that these people do not understand wilderness and manpower.

"Snow rescue, most of them are probably using sled planes, which are not very skilled in the world, so you need to find a place to use as a runway for landing. The place doesn't have to be very flat, but it doesn't have to be obvious that could damage the aircraft. ”

"Large, hard, undulating snow formed by the wind, commonly known as 'snow ridges', cannot be landed. Approximately 100 meters long and covered with a thin layer of snow is the ideal place to land, and it is also a good place for us to stay, as it will allow us to spot approaching polar bears at a glance. ”

Bi Fang squatted down, began to chisel ice with a knife, and said.

"Contrary to what many people think, the polar bear's hair is not actually white, the skin is even black, and the reason why it looks white is because it has two layers of hair, the outer one is about 5-15 centimeters long, and it is made up of a protein called keratin, which is hollow in the middle and not solid."

"This peculiar structure, while receiving sunlight, can hide sunlight in the hollow hair, and then refracted at a certain angle, then the polar bear's hair will look pure white, hidden in the snow is very difficult to find, almost exactly the same as the surrounding environment."

Therefore, it is necessary to have a flat and open environment around it, so that you can see the existence of behemoths at a glance.

"The reason why this is so is because this hollow wool is waterproof and insulating, which is equivalent to the onion dressing method we use, which can not only meet the needs of mimicry, but also keep warm."

The onion dressing method Bifang also talked about before, that is, compared with thick clothes, the same thickness achieved by multiple thin clothes will be more insulated, and a thin air layer is formed between clothes, which has the effect of blocking heat loss.

And it can also be easy to put on and take off, to achieve the effect of use in different environments.

For example, Bi Fang is going to build a shelter next, and the amount of exercise is slightly higher, so you can take off a layer to avoid sweating.

As Bi Fang advanced, the snow on the ground had begun to accumulate, which was good news that he was moving closer to land.

"I've always said before that one of the keys to survival is knowing where you are, and if you know where you are, you can be prepared for a lot of things."

"Greenland's high latitude, high average altitude, and glacier cover have caused a perennial cold high pressure on Greenland, which makes Greenland cool due to the action of cold high pressure, and Greenland is surrounded by a lot of cold currents to promote its cooling effect."

"But do you remember Svalbard, obviously at higher latitudes, but the temperature is very warm, because the Atlantic warm and humid air flow is very strong, which will bring abundant precipitation to the coast, and the Atlantic warm and humid air flow reaches its peak in winter, which is very strong."

"When the two collide, it is the most common cold and warm front system in geography textbooks, but it doesn't rain, it snows, so Greenland has more blizzard days."

"But Greenland itself is surrounded by cold currents, and because of the topography, it is not possible to drive straight in, and it will only replenish the ice sheet to a certain extent when snow falls on the marginal zone in autumn and winter, when the sea surface begins to freeze and continues to spread outward."

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