Live Wilderness Adventure

Chapter 729 Sudden Encounter with a Polar Bear

Bi Fang's mobility is very high. After a brief rest, he started the Wall project.

In fact, it is very simple, just dig a circle of ditches around the wooden house, and then sprinkle a mixture of ice and water mixed with sawdust.

At extreme temperatures, the mixture freezes into ice almost instantly, quickly forming an impregnable wall.

Ice is a solid substance formed by water. It is well known that thin ice breaks when touched like glass. However, ice is as hard as steel and as strong as concrete. This is what many people don't know.

Actually, it is very simple to achieve such a purpose, just add a little wood chips to it.

Ice cubes and sawdust may sound nonsensical at first, but in fact it has a professional name called Packret, which is a type of composite material, just like reinforced concrete, which is the composite of cement and steel bars.

The audience didn't know what Packret was, but when Bi Fang talked about reinforced concrete, everyone had a clear idea.

[What kind of pie can compare with cement? 】

The audience couldn't believe it, can ice cubes and wood be as hard as cement?

If the conditions are right, it is indeed possible. Bi Fang once again made an astonishing statement.

Pycrete is a composite material that uses approximately 14% by mass of sawdust or other pulp and 86% by mass of ice.

During World War II, the Allies mixed wood fiber with water to freeze it. The wood fiber forms a woody layer that makes the ice hard to melt. This Gaine-treated ice is as hard as steel.

One inch, or 2.5 centimeters of ice, can support the weight of six people; 10 centimeters of ice can stop bullets.

This kind of ice plate was invented by Jefferson Pike, a Yang countryman, so the Allies named this ice object 'Pikerett'.

Under Bi Fang's explanation, the water friends also understood how amazing this strangely named composite material is, and also knew its glorious history.

During World War II, when Dejun kept sinking transport ships, the Allied forces always wanted to build a ship that could not be destroyed by shells, bombs and mines, and Pekret became an ideal material for shipbuilding.

Later, the Allied forces used Packret as a material to build a small transport ship 60 feet long and 30 feet wide, which did not melt for several days in water with a water temperature of 60 degrees Fahrenheit.

That's 60 degrees Fahrenheit, which is equivalent to 15 degrees Celsius, which is basically the water temperature in spring and summer. It's outrageous that it can last for several days under such circumstances.

Later, due to the end of the two wars, the Pakrett ship was not continued to be built, but it was also used as an anti-tank obstacle, which was not uncommon in Soviet textbooks published in the 1940s.

During the two World Wars, the Central Kingdom also carried out a Habakkuk project, planning to build an aircraft carrier plan to deal with German submarines in the Atlantic Ocean.

It’s just that when the test ship was built in Canada at that time, it was discovered that the composite ice material could not support its own weight on the large hull, and there were differences in the design of the power part. Years later it completely melted.

Of course, such behavior seems absurd now, but a hundred years ago, someone did try it.

Hearing is deceiving, seeing is believing, Bi Fang raised the stone hammer in his hand, and smashed it directly at the solidified wall. With a muffled sound, some broken ice fell from the surface, and the wall was intact.

【I wipe, bullfrog】

【Look hard】

The fence was made very quickly. In just two days, Bi Fang surrounded the entire wooden house, reaching a height of 1.6 meters.

At such a height, polar bears can only climb if they want to come over, while wolves can jump, but it is enough to stop their charge and counterattack to a certain extent.

All in all, a sense of security.

After another week, the wolves did not come back, so Bi Fang put down his trip completely and continued to ride dog sleds all over Greenland to see if there were any prey, or to enjoy the Arctic scenery.

Feel the violent beating of salmon, track the magnificent migration of reindeer, and meet all kinds of animals and environments that were unknown in the city, satisfying all the audience's yearning for Greenland.

Days like this lasted until late December.

At this time, even Bi Fang himself can't remember how many days he has survived, it may be more than 60 days, or it may have been more than 70 days. Before surviving, you can encounter the scene where the sun rises again.

In this case, Bi Fang finally encountered another class of heavyweight predators in Greenland—polar bears.

Maybe it can't be said that they finally met. Bi Fang had met several times before, but they all just looked at each other from a distance, and never met at such a close distance like today.

What a coincidence.

Bi Fang's whole body was stiff, and he didn't dare to move at all at this moment, because there was a huge monster lying on his stomach more than 20 meters in front of him.

At first glance, it might be considered a small hill made of dry snow, but everyone saw a big head under the hill.

This is a chance encounter.

Bi Fang's initial target was an arctic rabbit, but unexpectedly, an arctic fox popped out, scaring the rabbit away.

The arctic fox is the arctic fox. Bi Fang didn't mind, but he followed and got behind the polar bear's ass. When he found it, the distance between them was only more than 20 meters.

One person and one bear are almost staring wide-eyed.

This bear is not the scrawny bear in the photo of the animal protection organization. On the contrary, it is a strong man without compromise.

Since he was lying on the ground, Bi Fang couldn't tell how long this guy was, but judging from his height, he weighed at least 500 kilograms!

The only good news is that the six idiots didn't come with more. Their hunting ability is limited, and taking them will only scare away the prey. Bi Fang tied them behind the ice mound not far away, so there is no need to worry about being caught by bears. eat up.

In summer, when food is plentiful, the arctic fox stores some of it in its den.

In winter, when the food stored in the den is exhausted, the arctic fox will follow the polar bear and pick up the leftovers left by the polar bear.

So in winter, there will always be 2 to 3 arctic foxes quietly following behind the polar bear. Of course, if the polar bear is very hungry, it will also attack the arctic fox.

Bi Fang suspected that he had encountered such a situation.

The color of the polar bear is almost the same as that of snow. If you don't pay attention to it in the night, it is easy to be ignored. Bi Fang himself has also made a move without knowing it. If he didn't wake up suddenly, he might get closer.

Thoughts like lightning, the polar bear moved!